With Casting Or Solidifying From Melt Patents (Class 148/538)
  • Publication number: 20110030855
    Abstract: A method of improving the corrosion resistance of magnesium alloy castings containing more than about 2 per cent by weight of aluminum is described. The method comprises: first selecting a casting process suitable for developing at least on the surface of the casting a microstructure comprising aluminum-depleted magnesium grains surrounded by an aluminum-rich layer and preferably incorporating at least some of an intermetallic compound based on the composition Mg17Al12; and second, heat treating at least the outer layer of the casting to promote additional intermetallic compound precipitation as required.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 10, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mridula D. Bharadwaj, Suresh Sundarraj, Shashank Tiwari, Aihua A. Luo, Deepika Sachdeva
  • Patent number: 7875134
    Abstract: A corrosion and wear resistant iron (Fe)-based alloy is provided. The Fe-based alloy consists essentially of 14.1 to 14.7% by weight of chromium (Cr), 1.41 to 1.47% by weight of carbon (C), 1.78 to 5.46% by weight of titanium (Ti), 0.11 to 0.39% by weight of aluminum (Al), 0.07 to 0.27% by weight of vanadium (V) and the balance of iron (Fe). The Fe-based alloy is highly resistant to corrosion and wear. In addition, since the Fe-based alloy is prepared using titanium alloy scrap at reduced cost, it is economically advantageous. Furthermore, the Fe-based alloy is environmentally friendly in terms of resource recycling. Further provided is a method for preparing the Fe-based alloy.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: January 25, 2011
    Assignee: IUCF-HYU (Industry-University Cooporation Foundation Hanyang University)
    Inventors: Seon Jin Kim, Gyung Guk Kim, Ji Hui Kim, Ki Nam Kim, Ji Young Kim
  • Publication number: 20110006255
    Abstract: The present invention relates to a molten product comprising: the element lanthanum (La), an element (Ln) selected from the group consisting of praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y), and mixtures thereof, the element cerium (Ce), an element Qa selected from the group consisting of calcium (Ca), strontium (Sr), barium (Ba) and mixtures thereof, the element manganese (Mn), an element Qb selected from the group consisting of magnesium (Mg), nickel (Ni), chromium (Cr), aluminum (Al), iron (Fe), cobalt (Co), titanium (Ti), tin (Sn), tantalum (Ta), indium (In), niobium (Nb) and mixtures thereof, the element oxygen (O).
    Type: Application
    Filed: December 22, 2008
    Publication date: January 13, 2011
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Caroline Levy, Samuel Marlin
  • Publication number: 20100329883
    Abstract: A gamma prime precipitation-strengthened nickel-base superalloy and method of forging an article from the superalloy to promote a low cycle fatigue resistance and high temperature dwell behavior of the article. The superalloy has a composition of, by weight, 16.0-22.4% cobalt, 6.6-14.3% chromium, 2.6-4.8% aluminum, 2.4-4.6% titanium, 1.4-3.5% tantalum, 0.9-3.0% niobium, 1.9-4.0% tungsten, 1.9-3.9% molybdenum, 0.0-2.5% rhenium, greater than 0.05% carbon, at least 0.1% hafnium, 0.02-0.10% boron, 0.03-0.10% zirconium, the balance nickel and incidental impurities. A billet is formed of the superalloy and worked at a temperature below the gamma prime solvus temperature of the superalloy so as to form a worked article, which is then heat treated above the gamma prime solvus temperature of the superalloy to uniformly coarsen the grains of the article, after which the article is cooled to reprecipitate gamma prime.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Paul Mourer, Kenneth Rees Bain
  • Publication number: 20100323243
    Abstract: A hydrogen-absorbing alloy for an alkaline storage battery with high power characteristics and excellent output power stability and a method for manufacturing the same are provided. The hydrogen-absorbing alloy for an alkaline storage battery of the invention is represented by ABn (A: LaxReyMg1-x-y, B: Nin-zTz, Re: at least one element selected from rare earth elements including Y (other than La), T: at least one element selected from Co, Mn, Zn, and Al, and z>0) and has a stoichiometric ratio n of 3.5 to 3.8, a ratio of La to Re (x/y) of 3.5 or less, at least an A5B19 type structure, and an average C axis length ? of crystal lattice of 30 to 41 ?.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 23, 2010
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Shuhei Yoshida, Kazuaki Tamura, Yoshinobu Katayama, Teruhito Nagae
  • Publication number: 20100313712
    Abstract: The invention concerns an aluminum-based master alloy for manganese alloying of metal alloys and a method for producing thereof, and use thereof for production of the metal alloys. The master alloy is aluminum and manganese (Al—Mn) alloy in form of splatters, which contains the following components in mass %: Mn 77-93, other components in total 0-5, Al— the rest. The method for producing the master alloy is characterized in that the temperature for adding the manganese to the liquid metal is in the range from 660 to 1600° C., and the cooling rate of the alloy during casting is in the range of 50-1500° C./sec for obtaining splatters of the master alloy. Thickness of splatters is in the range of 1-10 mm. The master alloys AlMn80 and AlMn90 are designed to be used for manganese alloying of metal alloys, whereas the temperature for adding the master alloy in the liquid metal is in the range from 600 to 850° C.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 16, 2010
    Inventor: Mihhail Terehhov
  • Publication number: 20100316524
    Abstract: A magnesium alloy includes 8.7 to 11.8 wt % aluminum, 0.63 to 1.93 wt % zinc, 0.1 to 0.5 wt % manganese, 0.5 to 1.5 wt % rare earth elements, and a remainder of said magnesium alloy being composed of magnesium and unavoidable impurities.
    Type: Application
    Filed: July 31, 2009
    Publication date: December 16, 2010
    Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.
    Inventors: KUO-JUNG CHUNG, HAI-TAO HUANG, FEI-YAN XIAO, KAM-SHAU CHAN, HSIEN-TSUNG LI, BIN-LUNG OU
  • Publication number: 20100300876
    Abstract: A cobalt-iron alloy sputtering target is made by melting and casting process and consists of cobalt, iron and additive metal, wherein the cobalt has an increased pass through flux content in the cobalt-iron alloy sputtering target and the additive metal has a content from 8 at % 20 at % and is at least one metal selected from the group consisting of tantalum, zirconium, niobium, hafnium, aluminum and chromium. The cobalt-iron alloy sputtering target has increased pass through flux.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Inventors: Shang-Chieh Hou, Hui-Wen Cheng
  • Patent number: 7841380
    Abstract: A magnesium alloy material such as a magnesium alloy cast material or a magnesium alloy rolled material, excellent in mechanical characteristics and surface precision, a producing method capable of stably producing such material, a magnesium alloy formed article utilizing the rolled material, and a producing method therefor. The magnesium material producing method includes a melting step of melting a magnesium alloy in a melting furnace to obtain a molten metal, a transfer step of transferring the molten metal from the melting furnace to a molten metal reservoir, and a casting step of supplying a movable mold with the molten metal from the molten metal reservoir, through a pouring gate, and solidifying the molten metal to continuously produce a cast material. Parts are formed by a low-oxygen material having an oxygen content of 20 mass % or less. The cast material is given a thickness of from 0.1 to 10 mm.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: November 30, 2010
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masatada Numano, Yoshihiro Nakai, Toshiya Ikeda, Taichiro Nishikawa
  • Patent number: 7837811
    Abstract: The present invention provides a method for manufacturing a composite of a carbon nanomaterial and a metallic material which has a homogeneous composite metal structure and thixotropic properties by compositing a metallic material of a non-ferrous metal alloy with a carbon nanomaterial by using both stirring and ultrasonic vibration. The method comprises compositing the metallic material of the non-ferrous metal alloy with the carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state, and the compositing is performed by a process for stirring and kneading the semi-solid metallic material while keeping the temperature thereof at a solid-liquid coexisting temperature, and a process for dispersing the carbon nanomaterial to liquid phase between solid phases by ultrasonic vibration.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: November 23, 2010
    Assignees: Nissei Plastic Industrial Co., Ltd., Chiba Institute of Technology
    Inventors: Tetsuichi Motegi, Fumi Tanabe, Masashi Suganuma, Kazuo Anzai
  • Publication number: 20100269958
    Abstract: The present disclosure describes methods of heat treating Ti-based alloys and various improvements that can be realized using such heat treatments. In one exemplary implementation, the invention provides a method of forming a metal member that involves forming an alloy into a utile shape and cooling the alloy from a first temperature above a beta transus temperature of the alloy to a second temperature below the beta transus temperature at a cooling rate of no more than about 30° F./minute. If so desired, the alloy my be treated for a period of about 1-12 hours at about 700-1100° F. Titanium alloys treated according to aspects of the invention may have higher tensile strengths and higher fracture toughness than conventional wrought, mill-annealed Ti 64 alloy.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 28, 2010
    Applicant: The Boeing Company
    Inventor: Robert D. Briggs
  • Publication number: 20100265028
    Abstract: The invention discloses a soft magnetic amorphous alloy and a soft magnetic nanocomposite alloy formed from the amorphous alloy. Both alloys comprise a composition expressed by the following formula: (Fe1-x-yCoxMy)100-a-b-cTaBbNc where, M is at least one element selected from the group consisting of Ni and Mn; T is at least one element selected from the group consisting of Nb, W, Ta, Zr, Hf, Ti, Cr, Cu, Mo, V and combinations thereof, and the content of Cu when present is less than or equal to 2 atomic %; N is at least one element selected from the group consisting of Si, Ge, C, P and Al; and 0.01?x+y<0.5; Q?y?0.4; 1<a<5 atomic %; 10<b<30 atomic %; and 0<c<10 atomic %. A core, which may be used in transformers and wire coils, is made by charging a furnace with elements necessary to form the amorphous alloy, rapidly quenching the alloy, forming a core from the alloy; and heating the core in the presence of a magnetic field to form the nanocomposite alloy.
    Type: Application
    Filed: February 21, 2007
    Publication date: October 21, 2010
    Applicant: CARNEGIE MELLON UNIVESITY
    Inventors: Michael E. McHenry, Jianguo Long, Vladimir Keylin, David Laughlin, Joseph Huth, Edward Conley
  • Publication number: 20100263769
    Abstract: A process for making a finished or semi-finished article of silver alloy, said process comprising the steps of providing a silver alloy containing silver in an amount of at least 77 wt %, copper and an amount of germanium that is preferably at least 0.5 wt % and is effective to reduce tarnishing and/or firestain, making or processing the finished or semi-finished article of the alloy by heating at least to an annealing temperature, gradually cooling the article; and reheating the article to effect precipitation hardening thereof. The avoidance of quenching reduces the risk of damage to the article.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 21, 2010
    Applicant: MIDDLESEX SILVER CO. LIMITED
    Inventor: Peter Gamon Johns
  • Patent number: 7803297
    Abstract: A method of producing a composite material which includes a carbon-based material and a particulate or fibrous metal material Z. The method includes steps (a) to (c). In the step (a), at least a first carbon material and the metal material Z mixed into an elastomer, and dispersing the first carbon material and the metal material Z by applying a shear force to obtain a composite elastomer, the metal material Z having a melting point lower than a melting point of the first carbon material. In the step (b), the composite elastomer is heat-treated to vaporize the elastomer to obtain an intermediate composite material including a second carbon material and the metal material Z. In the step (c), the intermediate composite material is heat-treated together with a substance including an element Y having a melting point lower than the melting point of the metal material Z to vaporize the substance including the element Y.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: September 28, 2010
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Akira Magario, Toru Noguchi
  • Publication number: 20100236669
    Abstract: The invention relates according to a first aspect to a method for the heat treatment of a batch of castings, in which an air quench is applied to the castings of the batch that are arranged in a single layer. The invention also extends to a system for the heat treatment of a batch of castings that includes a ventilation system in order to cause a flow of cooling air, characterized in that it includes means for placing the castings of the batch in a single layer and means for bringing the single layer of castings beneath the ventilation system so as to apply an air quench to the single layer comprising the castings of the batch.
    Type: Application
    Filed: June 19, 2008
    Publication date: September 23, 2010
    Applicant: MONTUPET S.A.
    Inventor: Philippe Meyer
  • Publication number: 20100230013
    Abstract: An R-T-B alloy used in a rare earth permanent magnet, where R is at least one element selected from rare earth elements including Y, which contains Dy and/or Tb as an essential element, T is a metal comprising Fe as an essential element, and B is boron, comprising: a main phase being an R2T14B phase, and an R-rich phase; and when a mean value of the concentration of Dy and/or Tb in the whole of said R-T-B alloy is defined as an average concentration, an area of 60% or more of an area of said main phase in an arbitrary cross-section of said R-T-B alloy contains said Dy and/or Tb at the average concentration or higher; a process for the production of the R-T-B alloy; a fine powder for R-T-B rare-earth permanent magnets which is prepared from the R-T-B alloy: R-T-B rare earth permanent magnet, and motors.
    Type: Application
    Filed: December 12, 2008
    Publication date: September 16, 2010
    Applicant: SHOWA DENKO K.K.
    Inventor: Kenichiro Nakajima
  • Publication number: 20100226779
    Abstract: A Ni-base superalloy having a chemical composition comprising Cr: 3.0-5.0 wt %, Co: 5.0-10.0 wt %, Mo: 0.5-3.0 wt %, W: 8.0-10.0 wt %, Ta: 5.0-8.0 wt %, Nb: 3.0 wt % or less, Al: 4.5-6.0 wt %, Ti: 0.1-2.0 wt %, Re: more than 3.0-4.0 wt %, Ru: 0.2-4.0 wt %, Hf: 0.01-0.2 wt %, and the balance being Ni and unavoidable impurities, a method for producing the same, and turbine blade or turbine vane components are disclosed. The Ni-base superalloy has high creep strength and textural stability under high temperature environment, and is excellent in applicability to turbine blade or turbine vane components of large-sized gas turbines.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 9, 2010
    Inventors: Yutaka Koizumi, Hiroshi Harada, Tadaharu Yokokawa, Toshiharu Kobayashi
  • Patent number: 7771547
    Abstract: Methods are disclosed for producing in-situ composite solders having a particulate intermetallic phase homogeneously distributed throughout the solder matrix. An eutectic solder is mixed with the components of the intermetallic phase, melted and rapidly cooled to form the desired solder. In-situ composite solder alloys formed by the disclosed method provide greater solder joint strength and fatigue resistance.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: August 10, 2010
    Assignee: Board of Trustees Operating Michigan State University
    Inventors: Thomas R. Bieler, Karatholuvu N. Subramanian, Sunglak Choi
  • Patent number: 7767043
    Abstract: The invention includes a copper-comprising sputtering target. The target is monolithic or bonded and contains at least 99.99% copper by weight and has an average grain size of from 1 micron to 50 microns. The copper-comprising target has a yield strength of greater than or equal to about 15 ksi and a Brinell hardness (HB) of greater than about 40. The invention includes copper alloy monolithic and bonded sputtering targets consisting essentially of less than or equal to about 99.99% copper by weight and a total amount of alloying element(s) of at least 100 ppm and less than 10% by weight. The targets have an average grain size of from less than 1 micron to 50 microns and have a grain size non-uniformity of less than about 15% standard deviation (1-sigma) throughout the target. The invention additionally includes methods of producing bonded and monolithic copper and copper alloy targets.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: August 3, 2010
    Assignee: Honeywell International Inc.
    Inventors: Vladimir M. Segal, Wuwen Yi, Stephane Ferrasse, Chi tse Wu, Susan D. Strothers, Frank A. Alford, William B. Willett
  • Patent number: 7754027
    Abstract: A method for manufacturing a sputtering target includes the steps of: providing a highly pure matrix material containing a magnetic metal, and a highly pure precious metal ingot material; cleaning the surfaces of the matrix material and the precious metal ingot; vacuum melting the matrix material and the precious metal ingot to obtain a molten alloy; pouring the molten alloy in a mold having a cooling system while maintaining a surface of the molten alloy at a molten state by arc heating until the pouring is finished, thereby forming the molten alloy into a cast blank; hot working the cast blank; and annealing the cast blank after the hot working.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 13, 2010
    Assignee: China Steel Corporation
    Inventors: Rong-Zhi Chen, Jye-Long Lee, In-Ting Hong, Jui-Tung Chang, Pa-Tsui Sze
  • Publication number: 20100143742
    Abstract: A wear resistant casting and method of fabrication thereof, the casting comprising inserts embedded in a matrix; each insert having a form such that a ratio A/B in any mutually perpendicular section that passes through the centre of mass of the insert is comprised between 0.4 and 2.5, and a distance C between two insert is at least two times smaller that a width thereof; the inserts forming at least one grid.
    Type: Application
    Filed: April 18, 2008
    Publication date: June 10, 2010
    Inventors: Igor Tsypine, Rafael Perlin
  • Patent number: 7704336
    Abstract: The invention relates to a method for treating molten metal that is contained in a metallurgical vessel, according to which a fine-grained blanket material containing silicon oxide and aluminium oxide is spread over the surface of the molten metal. The aim of the invention is to prevent the formation of dust and to facilitate the distribution of the blanket material over the surface of the molten metal. To achieve this, the blanket material consists of a synthetic zeolite material, which contains essentially equal fractions of silicon oxide and aluminium oxide. Said blanket material comprises a close grain-size distribution, in such a way that less than 20% of the grains have a diameter of less than 30 ?m or greater than 125 ?m. According to an additional embodiment of the invention, a vegetable ash, in particular a rice chaff ash, can be added to the blanket material.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: April 27, 2010
    Assignee: Metakon GmbH
    Inventor: Hans-Peter Noack
  • Patent number: 7691216
    Abstract: A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: April 6, 2010
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Hironobu Arashima, Takashi Ebisawa, Hideaki Itoh
  • Patent number: 7682472
    Abstract: In melting and casting by a water-cooled crucible induction melting technique, a partition means is inserted on top portion of a melt, and a new raw material for is charged on an upper side of the partition means to continue the melting and casting. Therefore, the continuous casting can be kept while avoiding mixture of the melt on a lower side of with the melt on an upper side of the partition means. A partition plate or a partition plate with legs can be used as the partition means. When the present invention is applied to production of a silicon ingot used for a solar cell and the like, productivity is largely improved, which allows costs to be remarkably reduced in solar energy generation. Therefore, the present invention can widely be utilized as the method for casting a polycrystalline-silicon ingot for a solar cell.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: March 23, 2010
    Assignee: Sumco Solar Corporation
    Inventor: Kyojiro Kaneko
  • Publication number: 20100051142
    Abstract: A mould for use in directionally solidifying a component has a casting cavity including a single crystal selector spiral which is a helical passage having not less than 1¼ and not more than 1½ turns.
    Type: Application
    Filed: June 24, 2009
    Publication date: March 4, 2010
    Applicant: ROLLS-ROYCE PLC
    Inventors: John H. Boswell, Simon T. Lockwood
  • Publication number: 20100012231
    Abstract: A method of growing a single crystal seed bar (10) in which a mould provided with a grain selector filter (16) above a starter chamber is filled with molten metal, whereupon the metal is allowed to solidify slowly upwardly from the starter chamber. The filter (16) is provided with a pattern of openings, with the diameter of the openings being at least as large as the primary dendrite tip radius of the metal, but smaller than half the primary dendrite arm spacing.
    Type: Application
    Filed: June 19, 2009
    Publication date: January 21, 2010
    Applicant: Rolls-Royce Plc
    Inventors: Neil J. D'Souza, Paul A. Withey, Hongbiao Dong, Huijuan Dai
  • Publication number: 20100000635
    Abstract: Alloys based on titanium aluminides, such as ? (TiAl) which may be made through the use of casting or powder metallurgical processes and heat treatments. The alloys contain titanium, 38 to 46 atom % aluminum, and 5 to 10 atom % niobium, and they contain composite lamella structures with B19 phase and ? phase there in a volume ratio of the B19 phase to ? phase 0.05:1 and 20:1.
    Type: Application
    Filed: July 30, 2009
    Publication date: January 7, 2010
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Fritz Appel, Jonathan Paul, Michael Oehring
  • Publication number: 20090320967
    Abstract: A high strength magnesium alloy improving the high temperature strength while not using any expensive rare earth elements and thereby reducing the cost and its method of production are provided, that is, a high strength magnesium alloy of a composition of the formula Mg100?(a,b)ZnaXb wherein X is one or more elements selected from Zr, Ti, and Hf, a and b are the contents of Zn and X expressed by at %, and the following relationships (1), (2), and (3): (1) a/28?b?a/9, (2) 2<a<10, (3) 0.05<b<1.
    Type: Application
    Filed: September 12, 2007
    Publication date: December 31, 2009
    Inventors: An Pang Tsai, Satoshi Ohhashi, Akira Kato
  • Publication number: 20090293997
    Abstract: The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance, and growth resistance the method including heat treatment of a Pb—Ca—Sn alloy grid being subjected to natural aging for 2 to 750 hours before heat treatment.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 3, 2009
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Jun Furukawa, Kazuo Matsushita, Tsutomu Yokoyama
  • Publication number: 20090293996
    Abstract: The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance and growth resistance, including two-step heat treatment of a Pb—Ca—Sn alley grid containing 0.06% by mass or less of calcium, the first heat treatment being conducted at a temperature of 40° C. to 110° C., the second heat treatment being conducted at a temperature of 90° C. to 140° C., and the first heat treatment being conducted at a lower temperature than the second heat treatment.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 3, 2009
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Jun FURUKAWA, Kazuo Matsushita
  • Publication number: 20090291297
    Abstract: The present invention relates a method for producing clathrate compounds, comprising producing a homogeneous melt containing the desired elements in the desired ratio, and subsequently solidifying said melt to obtain the clathrate compound by quickly cooling the melt.
    Type: Application
    Filed: August 29, 2008
    Publication date: November 26, 2009
    Applicant: Technische Universitat Vienna
    Inventors: Andrey Prokofiev, Silke Buhler-Paschen, Herbert Sassik, Stefan Laumann, Peter Pongratz
  • Publication number: 20090266455
    Abstract: A mold for manufacturing toothed sprockets for locking winding rollers of safety belts, comprising a main cavity (4) to be filled with a molten metal alloy so as to define at least one disc-shaped body (102) of a toothed sprocket (100) having a toothing (101) on a peripheral surface thereof, and a secondary cavity (6) designed to define a tailpiece (105) jutting out of the toothed disc-shaped body (102) and brought into fluid communication with the main cavity (4). The main cavity (4) comprises a deflecting element (7) extending within the cavity (4) itself for deviating the metal alloy towards the secondary cavity (6).
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Inventor: GUIDO BAGGIOLI
  • Publication number: 20090260727
    Abstract: A Sn-containing copper alloy, contains Sn: 0.01 to 16 mass %, Zr: 0.001 to 0.049 mass %, P: 0.01 to 0.25 mass %, and Cu: remainder; satisfying f0=[Cu]?0.5[Sn]?3[P]=61 to 97, f1=[P]/[Zr] 0.5 to 100, f2=3[Sn]/[Zr]=30 to 15000 and f3=3[Sn]/[P]=3 to 2500 (the content of element ‘a’ is represented as [a] mass %). ? and ?-phases and/or ?-phase are included and the total content of the ? and ?-phases and/or ?-phase reaches 90% or more by area ratio, and the mean grain size of the macrostructure during melt-solidification is 300 ?m or less.
    Type: Application
    Filed: August 10, 2005
    Publication date: October 22, 2009
    Applicant: SANBO SHINDO KOGYO KABUSHIKI KAISHA
    Inventor: Keiichiro Oishi
  • Patent number: 7591915
    Abstract: A method of producing a metal material in which carbon nanofibers are dispersed around metal particles includes: (a) mixing an elastomer which includes an unsaturated bond or a group having affinity to the carbon nanofibers, the metal particles, and the carbon nanofibers, and dispersing the carbon nanofibers by applying a shear force to obtain a carbon fiber composite material; and (b) heat-treating the carbon fiber composite material to vaporize the elastomer in the carbon fiber composite material.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: September 22, 2009
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Toru Noguchi, Akira Magario
  • Publication number: 20090223606
    Abstract: The iron-based rare-earth nanocomposite magnet of the present invention has a composition T100-x-y-z-nQxRyTizMn, where T is Fe or a transition metal element in which Fe is partially replaced by Co and/or Ni; Q is B and/or C; R is at least one rare-earth element including substantially no La or Ce; and M is at least one metal element selected from Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. x, y, z and n satisfy 5?x?10 at %, 7?y?10 at %, 0.1?z?5 at % and 0?n?10 at %, respectively. The magnet includes R2Fe14B-type compound phases and ? —Fe phases forming a magnetically coupled nanocomposite magnet structure. The R2Fe14B-type compound phases have an average crystal grain size of 30 nm to 300 nm and the ? —Fe phases have an average crystal grain size of 1 nm to 20 nm. The magnet has magnetic properties including a coercivity of at least 400 kA/m and a remanence of at least 0.9 T.
    Type: Application
    Filed: December 13, 2005
    Publication date: September 10, 2009
    Applicant: HITACHI METALS, LTD.
    Inventors: Hirokazu Kanekiyo, Toshio Miyoshi
  • Publication number: 20090209923
    Abstract: The present disclosure concerns (i) a hypodermic needle composed of a metal alloy, wherein the metal alloy is in a predominantly amorphous form, said amorphous form of said metal alloy having a glass transition temperature (T 9 ) in the range of 50-6500 C, (ii) methods for the manufacture of such injection needles by casting or moulding an amorphous alloy, and (iii) a method of safely disposing hypodermic needles.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 20, 2009
    Inventors: Sören Linderoth, Alexander Van Lelieveld
  • Publication number: 20090165906
    Abstract: A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat-treatment of such ingots prior to hot working.
    Type: Application
    Filed: February 27, 2009
    Publication date: July 2, 2009
    Inventors: Robert Bruce Wagstaff, Wayne J. Fenton
  • Publication number: 20090139612
    Abstract: In one aspect, a Zr-based amorphous alloy comprises Zr, Ti, Cu, Ni, Fe, Be, and Sn. In another aspect, a Zr-based amorphous alloy comprises about 30-75 atomic percent of (ZrxTiySnz), about 10-35 atomic percent of (CumNin), about 0.1-15 atomic percent of Fe, and about 0.1-35 atomic percent of Be. Reference numerals x, y and z are atomic fractions, and x+y+z equals to 1, wherein x is about 0.6-0.85, and z is in the range of about 0.01x-0.1x. Reference numerals m and n are atomic fractions, and m+n equals to 1, and wherein m is about 0.5-0.65. In yet another aspect, a method for preparing a Zr-based amorphous alloy comprises melting a raw material comprising Zr, Ti, Cu, Ni, Fe, Be, and Sn to form an alloy mixture; and molding the alloy mixture to form the amorphous alloy.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Inventors: Kun Lu, Linlin Jiang, Faliang Zhang, Qing Gong
  • Publication number: 20090129966
    Abstract: An iron-based rare-earth nanocomposite magnet according to the present invention includes an Nd2Fe14B phase and an ?-Fe phase and has a composition represented by the compositional formula: T100-x-y-z-n(B1-qCq)xRyTizMn, where T is at least one transition metal element selected from the group consisting of Fe, Co and Ni and always including Fe, R is at least one rare-earth element including substantially no La or Ce, and M is at least one metal element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, and the mole fractions x, y, z, n and q satisfy the inequalities of: 4 at %?x?10 at %, 6 at %?y?10 at %, 0.05 at %?z?5 at %, 0 at %?n?10 at %, and 0.05?q?0.5, respectively. The magnet includes 5 vol % to 60 vol % of ?-Fe phase with an average crystal grain size of 1 nm to 50 nm and 40 vol % to 90 vol % of Nd2Fe14B phase with an average crystal grain size of 5 nm to 100 nm.
    Type: Application
    Filed: March 22, 2006
    Publication date: May 21, 2009
    Applicant: Hitachi Metals, Ltd.
    Inventors: Hirokazu Kanekiyo, Toshio Miyoshi, Satoshi Hirosawa
  • Publication number: 20090130483
    Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.
    Type: Application
    Filed: July 18, 2006
    Publication date: May 21, 2009
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Publication number: 20090114317
    Abstract: Metallic mirrors made of bulk-solidifying amorphous alloys, the bulk-solidifying amorphous alloys providing ruggedness, lightweight structure, excellent resistance to chemical and environmental effects, and low-cost manufacturing, and methods of making such metallic mirrors from such bulk-solidifying amorphous alloys are provided.
    Type: Application
    Filed: October 19, 2005
    Publication date: May 7, 2009
    Inventors: Steve Collier, Atakan Peker
  • Publication number: 20090110955
    Abstract: Disclosed is an amorphous, ductile brazing foil with a composition consisting essentially of NirestCraBbPcSid with 2 atomic percent ?a?30 atomic percent; 0.5 atomic percent ?b?14 atomic percent; 2 atomic percent ?c?20 atomic percent; 0 atomic percent ?d?14 atomic percent; incidental impurities ?0.5 atomic percent; rest Ni, where c>b>c/15 and 10 atomic percent ?b+c+d?25 atomic percent. Also disclosed is amorphous, ductile Ni-based brazing foil having a composition consisting essentially of NirestCraBbPcSidCeXfYg wherein a, b, c, d, e, f, and g are numbers such that 2 atomic percent ?a?30 atomic percent; 0.5 atomic percent ?b?14 atomic percent; 2 atomic percent ?c?20 atomic percent; 0 atomic percent ?d?14 atomic percent; 0 atomic percent ?e?5 atomic percent; 0 atomic percent ?f?5 atomic percent; 0 atomic percent ?g?20 atomic percent; wherein incidental impurities are present, if at all, in amounts ?0.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 30, 2009
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Publication number: 20090101244
    Abstract: Mechanical hooks made of bulk-solidifying amorphous alloys, wherein the bulk-solidifying amorphous alloys provide ruggedness, durability, higher service loads, excellent resistance to chemical and environmental effects, and low-cost manufacturing are provided. In addition, methods of making such mechanical hooks from bulk-solidifying amorphous alloys are also disclosed.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 23, 2009
    Inventors: Dennis Ogawa, Quoc Tran Pham, Atakan Peker
  • Patent number: 7513962
    Abstract: Described herein are alloys substantially free of dendrites. A method includes forming an alloy substantially free of dendrites. A superheated alloy is cooled to form a nucleated alloy. The temperature of the nucleated alloy is controlled to prevent the nuclei from melting. The nucleated alloy is mixed to distribute the nuclei throughout the alloy. The nucleated alloy is cooled with nuclei distributed throughout.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 7, 2009
    Assignee: Worcester Polytechnic Institute
    Inventors: Anacleto M. de Figueredo, Diran Apelian, Matt M. Findon, Nicholas Saddock
  • Publication number: 20090068053
    Abstract: The present invention relates to a high strength and high ductility magnesium alloy and its preparation method. The magnesium alloy in the present invention contains 3˜9 wt % of aluminum, 3.5˜9 wt % of zinc, 0.15˜1 wt % of manganese, 0.01˜2 wt % of antimony, and balanced magnesium. The alloy may further comprise 0˜2 wt. % of one element selected from the group consisting of mischmetal, calcium, and silicon. The room temperature mechanical properties of the T6 heat-treated typical alloy in the present invention are as following: Ultimate Tensile Strength of more than or equal to 270 Mpa, Yield Tensile Strength of more than or equal to 140 Mpa, Elongation of more than or equal to 6%, Brinell hardness of more than or equal to 70, Impact Energy of more than or equal to 12 J. Some of the alloys in the present invention not only possess superior room temperature mechanical properties, but also have very good high temperature mechanical properties.
    Type: Application
    Filed: April 11, 2005
    Publication date: March 12, 2009
    Inventors: Yuequn Ma, Rongshi Chen, Enhou Han
  • Publication number: 20090056509
    Abstract: Pliers comprising a composite material comprising: individual regions of a ductile metal phase distributed in a substantially continuous amorphous metal alloy matrix are disclosed. Pliers comprising a first lever arm and a second lever arm that is complementary to the first lever arm, wherein the two arms are pivotally attached, and at least a portion of at least one of the two arms comprises the composite material are disclosed. A method of forming pliers is disclosed.
    Type: Application
    Filed: July 11, 2008
    Publication date: March 5, 2009
    Inventor: Mark C. Anderson
  • Publication number: 20090053090
    Abstract: It is an object to provide an inexpensive alloy for heat dissipation having a small thermal expansion coefficient as known composite materials, a large thermal conductivity as pure copper, and excellent machinability and a method for manufacturing the alloy. In particular, since various shapes are required of the alloy for heat dissipation, a manufacturing method by using a powder metallurgy method capable of supplying alloys for heat dissipation, the manufacturing costs of which are low and which take on various shapes, is provided besides the known melting method. The alloy according to the present invention is a Cu—Cr alloy, which is composed of 0.3 percent by mass or more, and 80 percent by mass or less of Cr and the remainder of Cu and incidental impurities and which has a structure in which particulate Cr phases having a major axis of 100 nm or less and an aspect ratio of less than 10 are precipitated at a density of 20 particles/?m2 in a Cu matrix except Cr phases of 100 nm or more.
    Type: Application
    Filed: October 5, 2005
    Publication date: February 26, 2009
    Inventor: Hoshiaki Terao
  • Publication number: 20090038719
    Abstract: The present invention refers to a method of manufacturing a thermo-electric material consisting of a thermoelectric substrate with thermal scattering centers, in which a melt at least of the substrate is cooled in a manner that the scattering centers are generated as nano-scale precipitations from the melt embedded in the substrate and a material manufactured accordingly.
    Type: Application
    Filed: June 14, 2006
    Publication date: February 12, 2009
    Inventors: Harald Boettner, Joachim Nurnus
  • Publication number: 20080318082
    Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 25, 2008
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Patent number: 7468110
    Abstract: Sputtering targets and methods of making sputtering targets are described. The method includes the steps of: providing a sputtering metal workpiece made of a valve metal; transverse cold-rolling the sputtering metal workpiece to obtain a rolled workpiece; and cold-working the rolled workpiece to obtain a shaped workpiece. The sputtering targets exhibits a substantially consistent grain structure and/or texture on at least the sidewalls.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 23, 2008
    Assignee: Cabot Corporation
    Inventors: Robert B. Ford, Christopher A. Michaluk