Powder Metallurgy Processes With Heating Or Sintering Patents (Class 419/1)
  • Publication number: 20110284372
    Abstract: According to one embodiment of the invention, a Cu—Ga alloy material has an average composition consisting of not less than 32% and not more than 53% by mass of gallium (Ga) as well as the balance consisting of copper (Cu) and an inevitable impurity. In the Cu—Ga alloy material, a region containing less than 47% by mass of copper accounts for 2% or less by volume of the whole Cu—Ga alloy material.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 24, 2011
    Applicant: HITACHI CABLE, LTD.
    Inventors: Yuichi HIRAMOTO, Tatsuya TONOGI, Noriyuki TATSUMI
  • Publication number: 20110268599
    Abstract: The present invention provides a process for preparing a ZnAl alloy target material by providing a mixture of zinc powder and aluminum powder and obtaining a ZnAl alloy by sintering the mixture of zinc powder and aluminum powder by using a spark plasma sintering process. The present invention also describes a ZnAl alloy target material prepared by the above-described process.
    Type: Application
    Filed: January 11, 2010
    Publication date: November 3, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Shengcong Liufu, Hao Zeng
  • Publication number: 20110253499
    Abstract: A sintered coupling ring (1) is described, comprising a ring of coupling teeth (2) which comprise relieved flanks (4) extending from wedge-shaped end faces (3) and, on the side opposite the wedge-shaped end faces (3), a stop (5) that protrudes radially beyond the tooth tip (6). In order to provide advantageous constructional conditions it is proposed that the stops (5) have a greater density than the remaining tooth tip (6).
    Type: Application
    Filed: October 6, 2010
    Publication date: October 20, 2011
    Applicant: Miba Sinter Austria GmbH
    Inventors: Christian Kronberger, Horst Roessler, Christian Sandner
  • Publication number: 20110236713
    Abstract: The invention relates to a functionally graded material shape (1) where a first material (M1) is fused with a second material (M2) through sintering and a method of production of said functionally graded material shape (1). Said first material (M1) has a first coefficient of thermal expansion (?1) and said second material (M2) has a second coefficient of thermal expansion (?2), differing from the first coefficient of thermal expansion (?1). The invention is characterized in that the shape (1) further comprises a third material (M3) adapted to, together with M1 and M2, create an intermediate composite material phase intermixed between the first and the second materials (M1, M2). Said third material (M3) has a coefficient of thermal expansion (?3) intermediate between the first coefficient of thermal expansion (?1) of the first material (M1) and the second coefficient of thermal expansion (?2) of the second material (M2).
    Type: Application
    Filed: February 14, 2011
    Publication date: September 29, 2011
    Applicant: Diamorph AB
    Inventors: Mohamed Radwan, Katarina Flodstrom, Saeid Esmaeilzadeh
  • Publication number: 20110159216
    Abstract: A colored metal composite including a metal matrix; and colored particles distributed throughout the metal matrix AND/OR a method including providing metal powder as a first phase of a composite; providing colored particles to form a second phase of the composite; mixing the metal powder and colored particles; and sintering the metal powder around the colored particles to form a metal matrix that has colored particles distributed throughout.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Inventors: Caroline Elizabeth MILLAR, Stuart Paul GODFREY
  • Publication number: 20110045985
    Abstract: A superconductor which comprises a new compound composition substituting for perovskite copper oxides. The superconductor is characterized by comprising a compound which is represented by the chemical formula A(TM)2Pn2 [wherein A is at least one member selected from the elements in Group 1, the elements in Group 2, or the elements in Group 3 (Sc, Y, and the rare-earth metal elements); TM is at least one member selected from the transition metal elements Fe, Ru, Os, Ni, Pd, or Pt; and Pn is at least one member selected from the elements in Group 15 (pnicogen elements)] and which has an infinite-layer crystal structure comprising (TM)Pn layers alternating with metal layers of the element (A).
    Type: Application
    Filed: February 20, 2009
    Publication date: February 24, 2011
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hideo Hosono, Hiroshi Yanagi, Toshio Kamiya, Satoru Matsuishi, Sungwng Kim, Seok Gyu Yoon, Hidenori Hiramatsu, Masahiro Hirano, Yoichi Kamihara, Takatoshi Nomura
  • Patent number: 7892480
    Abstract: Dental prostheses are fabricated as a metallic alloy body by a technique that produces scrap alloy. Suitable gold base alloys have only base metal alloying additions which are more readily oxidized than gold and when combined with the gold can be age hardened. Exemplary metals include titanium, zirconium, yttrium and chromium. Scrap from fabricating a dental prosthesis is melted in air so that the base metals are all oxidized and substantially pure gold is reclaimed for reuse in new alloys.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: February 22, 2011
    Assignee: The Argen Corporation
    Inventor: Paul J. Cascone
  • Patent number: 7888284
    Abstract: An absorbent includes a ferromagnetic nucleus with a one-layer or two-layer shell or devoid thereof and the nucleus is embodied in the form of a plate with a planar size that ranges from 500-5000 ?m and the thickness is equal to 0.1-1000 ?m. The method for producing the inventive magnetically-operated absorbent includes evaporating and/or melting a magnetic material powder in a low-temperature plasma, quenching and condensing the thus obtained vaporized and/or melt-particle product in a gas flux, and transferring the product precipitated in the form of crystals or micro slugs of corresponding metals, correspondingly to a stabilizer-containing dispersion medium and holding in the medium until a gas release is over. Then the crystals or micro slugs are processed by flattening, for example pressing so that the plates of a specified thickness are obtained.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: February 15, 2011
    Assignees: Evgeny Pavlovich Germanov, Mikhail Vladimirovich Kutushov
    Inventor: Mikhail Vladimirovich Kutushov
  • Publication number: 20110033333
    Abstract: The present invention provides a magnesium-based composite material that can achieve excellent performance such as high tensile strength not only at ordinary temperature but also at high temperature. The magnesium-based composite material of the present invention is Al2Ca-containing magnesium-based composite material, wherein said composite material is obtained by a solid-phase reaction of an aluminum-containing magnesium alloy and an additive, said additive being calcium oxide, and said composite material contains Al2Ca formed in the solid-phase reaction. In the magnesium-based composite material, CaO, in combination with Al2Ca, can be dispersed.
    Type: Application
    Filed: March 11, 2009
    Publication date: February 10, 2011
    Applicant: Topy Kogyo Kabushiki Kaisha
    Inventors: Keitaro Enami, Shoji Ono, Masaki Ohara, Takanori Igarashi
  • Publication number: 20100303664
    Abstract: There is provided a method for sintering a metal powder, such as a green body briquette of a metal powder, which includes heating the metal powder by at least one DFI burner providing a flame for contacting said metal powder which is directly exposed to the flame of the at least one DFI burner.
    Type: Application
    Filed: September 30, 2008
    Publication date: December 2, 2010
    Inventors: Jonas Adolfi, Henrik Gripenberg, Kosti Jylhä, David Muren
  • Publication number: 20100298065
    Abstract: A method for making golf club heads includes using direct metal laser sintering (DMLS), selective laser melting (SLM) and other computer controlled high energy sintering or melting techniques to form club heads with customized user parameters. The powdered metals can be selected by type and quantity to achieve a desired density or weight distribution. Club heads made by these techniques are characterized by having customized parameters chosen for individual golfers. By sintering powdered metal to form areas of different porosity, club heads with desired weight distributions can be achieved.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Inventors: Peter L. Soracco, Karl Clausen
  • Publication number: 20100255244
    Abstract: The present invention aims at providing a sputtering target for making an optical medium whose reflective layer is mainly composed of Ag and capable of attaining an optical medium which is excellent in surface smoothness and can sufficiently suppress noise and jitter, a method of making the same, an optical medium, and a method of making the same. The present invention provides a sputtering target for making an optical medium comprising 0.1 to 2 at % of one or two elements selected from the group consisting of Ta and Nb, 0.1 to 1 at % of Al, and the balance constituted by Ag and unavoidable impurities; and an optical medium comprising a reflective layer having this composition on a substrate.
    Type: Application
    Filed: March 12, 2010
    Publication date: October 7, 2010
    Applicant: TDK CORPORATION
    Inventors: Yukio KAWAGUCHI, Hiroshi TAKASAKI, Isamu KURIBAYASHI
  • Patent number: 7794554
    Abstract: Refractory metal products, such as tantalum, can be rejuvenated after metal consumption in selected zones by filling the zones with powder and simultaneously applying focused radiant energy to the powder.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: September 14, 2010
    Assignee: H.C. Starck Inc.
    Inventors: Paul R. Aimone, Prabhat Kumar, Peter R. Jepson, Henning Uhlenhut, Howard V. Goldberg, Steven A. Miller
  • Patent number: 7776259
    Abstract: A high strength and creep resistant soft magnetic Fe—Co alloy includes, in weight %, Fe and Co such that the difference between the Fe and Co is at least 2%, at least 35% Co, and 2.5%?(V+Mo+Nb), wherein 0.4%?Mo and/or 0.4%?Nb. This alloy can further include B, C, W, Ni, Ti, Cr, Mn and/or Al. A vanadium-free high strength soft magnetic Fe—Co alloy includes in weight %, Fe and Co such that the difference between the Fe and Co is at least 2%, and at least 15% Co, the alloy further satisfying (0.1%?Nb and 0.1%?W) or 0.25%?Mn. This alloy can further include B, C, Ni, Ti, Cr and/or Al.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: August 17, 2010
    Assignee: Philip Morris USA Inc.
    Inventors: Seetharama C. Deevi, Rangaraj S. Sundar
  • Publication number: 20100174377
    Abstract: A composition, a medical implant constructed from the composition, and a method of making the composition are described. The composition comprises a porous-coated substrate, the porous coating comprising a reticulated particle coating, the coating being formed by fusing the reticulated particle to the surface, preferably by sintering.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 8, 2010
    Applicant: SMITH & NEPHEW, INC.
    Inventor: Daniel A. Heuer
  • Publication number: 20100148448
    Abstract: A pump seal for sealing a gap between a housing and a rotating shaft including a first shell configured to engage the pump housing and to be stationary therewith. The first shell is provided with a first wearable sealing element. The pump seal further includes a second shell configured to engage the shaft and to rotate therewith, the second shell being provided with a second wearable sealing element. The first and second wearable sealing elements are configured to be in substantially sealing contact with each other during operation. The pump seal further includes a sintered retainer ring arranged between a portion of the first shell and the first wearable sealing element for substantially preventing rotation of the first wearable sealing element relative to the first shell.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 17, 2010
    Inventors: Pradeep Pinto, John Baibak, Michael Kroha
  • Publication number: 20100119400
    Abstract: A silver free high noble dental alloy comprising at least 60 wt. % noble materials, where 40 wt. % of the material is gold; at least 2.5 wt. % gallium, at least about from 2 to 4 wt. % cobalt; and at least from about 0.01 to 0.25 wt. % lithium and/or boron; and a principal balance of palladium is provided. Dental products and methods of manufacturing dental products using such a high noble dental alloys are also provided.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 13, 2010
    Inventors: Arun Prasad, Paul J. Cascone
  • Publication number: 20100108116
    Abstract: A first concept is directed to an improved dye-sensitized solar cell (DSSC). In a first embodiment, photo energy conversion efficiency (PCE) is increased by employing a reflective layer disposed underneath the DSSC device to direct light that would otherwise be wasted back into the DSSC device. In a second embodiment, the PCE of a DSSC is increased by adding an additional dye, which exhibits significant absorption in the red and near-IR regions. A novel phthalocyanine derivative has been developed that absorbs well in the red and near IR-regions, readily couples to the titanium oxide semiconductor in the DSSC, and enables the DSSC device to exhibit a high photo-current efficiency. A second concept is directed to novel thermoelectric materials formed from a mechanical alloy of silicon and at least one other periodic element, wherein the mechanical alloy is fused together using spark plasma sintering.
    Type: Application
    Filed: August 3, 2009
    Publication date: May 6, 2010
    Applicant: University of Washington
    Inventors: Minoru Taya, Hee Seok Kim, Miseon Choi, Morio Nagata
  • Publication number: 20100098573
    Abstract: The present disclosure relates to the sintering cycle method and apparatus of a kind of box-type sintering machine, which is peculiarly applicable to the production of lightweight aggregate using fly ash or industrial waste by sintering process. This apparatus includes four conveying systems, ignition station #1, ignition station #2, one tilt discharger, and one crusher; the box-type sintering stacking line A and B are straight and parallel, sharing one coarse dust collector; each box-type sintering stacking line is equipped with overhead workstation gantry crane rails and cranes, and each crane comprises two parts, i.e., hoist system and single rail trolley system; each box-type sintering stacking line has multiple sinter boxes; each sinter box has an air chamber below, under which there is the air chamber pipeline connected to the coarse dust collector.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 22, 2010
    Applicant: Beijing STICH Science and Technology Company Ltd.
    Inventor: Zhengfu Fan
  • Publication number: 20100092328
    Abstract: A method and apparatus for powder compaction using high velocity adiabatic impact. A quantity of powder material is impacted with a power ram at a controlled velocity in a single controlled impact on the powder material at a controlled specific impulse or specific kinetic energy to adiabatically compact the powder material into a workpiece with a relative density of 95% or above without additional processing such as preliminary compaction, pre-compaction sintering, post-compaction sintering, pre-heating of the powder material (warm compaction), lubrication or multiple impacts.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 15, 2010
    Inventors: Glenn Thomas, Lennart Lindell
  • Publication number: 20100015463
    Abstract: One embodiment of the invention includes first particles comprising an intermetallic compound comprising titanium and aluminum; second particles comprising aluminum; and third particles comprising titanium.
    Type: Application
    Filed: December 21, 2007
    Publication date: January 21, 2010
    Inventor: June Sang Siak
  • Publication number: 20090315000
    Abstract: The present invention provides a transparent conductive film having high conductivity and a production method therefor. The present invention further provides a sintered body for forming the transparent conductive film and a production method therefor. The transparent conductive film comprises Ga, Ti, and O. The sintered body comprises Ga, Ti, and O. The method for producing a sintered body comprises the steps of: (a) mixing a titanium-containing powder and a gallium-containing powder; and (b) compacting and sintering the obtained mixture.
    Type: Application
    Filed: August 13, 2007
    Publication date: December 24, 2009
    Inventor: Akira Hasegawa
  • Publication number: 20090277301
    Abstract: The invention relates to mixtures of metal, alloy or composite powders which have a mean particle diameter D50 of not more than 75 ?m, preferably not more than 25 ?m, and are produced in a process in which a starting powder is firstly deformed to give platelet-like particles and these are then comminuted in the presence of milling aids together with further additives and also the use of these powder mixtures and shaped articles produced therefrom.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 12, 2009
    Applicant: H.C. Starck GmbH
    Inventors: Roland Scholl, Ulf Waag, Aloys Eiling
  • Publication number: 20090263266
    Abstract: An improved amorphous aluminum alloy having high strength, ductility, corrosion resistance and fracture toughness is disclosed. The alloy has an amorphous phase and a coherent L12 phase. The alloy has nickel, cerium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, niobium and iron. The volume fraction of the amorphous phase ranges from about 50 percent to about 95 percent and the volume fraction of the coherent L12 phase ranges from about 5 percent to about 50 percent.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Applicant: United Technologies Corporation
    Inventor: Awadh B. Pandey
  • Publication number: 20090263624
    Abstract: A method of forming an article in a layer wise manufacturing process from a computer software file representing the article includes dividing the file into sub files in dependence of the size or other characteristics of features of the article to be created, applying a process characteristic selected independence on a characteristic feature to each sub file and manufacturing the article in accordance with the subfiles.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 22, 2009
    Applicant: MATERIALS SOLUTIONS
    Inventor: Trevor John ILLSTON
  • Publication number: 20090252634
    Abstract: The invention relates to mixtures of metal, alloy or composite powders which have a mean particle diameter D50 of not more than 75 ?m, preferably not more than 25 ?m, and are produced in a process in which a starting powder is firstly deformed to give platelet-like particles and these are then comminuted in the presence of milling aids together with further additives and also the use of these powder mixtures and shaped articles produced therefrom.
    Type: Application
    Filed: July 9, 2007
    Publication date: October 8, 2009
    Inventors: Roland Scholl, Ulf Waag, Aloys Eiling
  • Publication number: 20090246739
    Abstract: A furnace for the thermal treatment of at least one dental firing object, comprising a housing, a firing chamber, a firing chamber base, a heating device, and at least one optical temperature detection element which can be used to detect a temperature in the firing chamber and is intended to enable a contactless temperature measurement of a dental firing object in a simple manner. This is achieved by virtue of the fact that the firing object is mounted on and/or in and/or below and/or alongside a firing aid situated in the firing chamber, and the optical temperature detection element detects the temperature of the firing aid.
    Type: Application
    Filed: March 21, 2009
    Publication date: October 1, 2009
    Inventors: Rudolf Jussel, Jurgen Laubersheimer, Christian Werling, Christoph Appert
  • Publication number: 20090226340
    Abstract: A method of making a degradable alloy includes adding one or more alloying products to an aluminum or aluminum alloy melt; dissolving the alloying products in the aluminum or aluminum alloy melt, thereby forming a degradable alloy melt; and solidifying the degradable alloy melt to form the degradable alloy. A method for manufacturing a product made of a degradable alloy includes adding one or more alloying products to an aluminum or aluminum alloy melt in a mould; dissolving the one or more alloying products in the aluminum or aluminum alloy melt to form a degradable alloy melt; and solidifying the degradable alloy melt to form the product. A method for manufacturing a product made of a degradable alloy includes placing powders of a base metal or a base alloy and powders of one or more alloying products in a mould; and pressing and sintering the powders to form the product.
    Type: Application
    Filed: February 24, 2009
    Publication date: September 10, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Manuel Marya
  • Publication number: 20090202378
    Abstract: From one aspect, a method of forming a support for use in a selective sintering or melting process includes forming a body on a platen having a plurality of generally parallel channels each channel being open at least one end. The base of the channels may be formed by the platen. Preferably the support is formed by a selective sintering or melting process.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 13, 2009
    Applicant: MATERIALS SOLUTION
    Inventor: Trevor John Illston
  • Publication number: 20090098004
    Abstract: A method for the treatment of metal articles by hot isostatic pressing, wherein air is used as the pressure medium for the hot isostatic pressing.
    Type: Application
    Filed: July 24, 2006
    Publication date: April 16, 2009
    Applicant: AVURE TECHNOLOGIES AB
    Inventor: Mats Gärdin
  • Publication number: 20090064861
    Abstract: Provided is a hydrogen separation membrane characterized by comprising a structure obtained by sintering atomized powder having a composition of NixMyZr100-x-y (wherein M is Nb and/or Ta, 25?x?40, 25?y?40) and an average grain size of 50 ?m or less. The prepared hydrogen separation membrane does not require the use of costly Pd metal, and can be used as a substitute for conventional high-cost bulk metallic glass obtained by quenching of molten metal. This hydrogen separation membrane is free from problems such as defects in the hydrogen separation membrane and unevenness of composition, has a uniform structure, and is capable of separating hydrogen at low cost. Further provided are a sputtering target for forming such as hydrogen separation membrane and its manufacturing method.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 12, 2009
    Applicant: NIPPON MINING & METALS CO., LTD.
    Inventors: Atsushi Nakamura, Masataka Yahagi, Akihisa Inoue, Hisamichi Kimura, Shin-ichi Yamaura
  • Publication number: 20090047165
    Abstract: A metal powder for use in an additive production method of three-dimensional objects is disclosed. The powder is solidified by means of a laser or electron beam or another heat source and contains iron and the following components by weight percent (wt.-%): carbon: 0.07 max. wt-%, chromium: 14.00-15.50 wt.-%, nickel: 3.5-5.0 wt.-%, and copper: 3.0-4.5 wt.-%. The powder particles have a median particle size d50 between 20 ?m and 100 ?m.
    Type: Application
    Filed: May 13, 2008
    Publication date: February 19, 2009
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Tatu Syvanen, Olli Nyrhila, Juha Kotila
  • Publication number: 20090042050
    Abstract: The invention refers to a method and an apparatus for fabricating a tridimensional solid object by sintering inorganic particles of controlled size distribution. The particles are directed onto a target area in a powdery stream in the shape of a conical surface which is coaxial to a simultaneous heating flux while an at least bidimensional relative movement is maintained between the target area, the powdery stream and the heating flux. As a result the particles sinterization occurs in a single operation directly onto the target area. The resulting tridimensional solid objects are also claimed.
    Type: Application
    Filed: November 18, 2004
    Publication date: February 12, 2009
    Inventors: Paolo Matteazzi, Hinrich Becker
  • Patent number: 7488512
    Abstract: In a solid precursor evaporation system configured for use in a thin film deposition system, such as thermal chemical vapor deposition (TCVD), a method for preparing one or more trays of solid precursor is described. The solid precursor may be formed on a coating substrate, such as a tray, using one or more of dipping techniques, spin-on techniques, and sintering techniques.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: February 10, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Kenji Suzuki, Emmanuel P. Guidotti, Gerrit J. Leusink, Masamichi Hara, Daisuke Kuroiwa, Sandra G. Malhotra, Fenton McFeely, Robert R. Young, Jr.
  • Publication number: 20080199738
    Abstract: A fuel cell interconnect includes a first surface containing a first plurality of channels and a second surface containing a second plurality of channels. The first and second surfaces are disposed on opposite sides of the interconnect. The first plurality of channels is offset from the second plurality of channels.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 21, 2008
    Inventors: Martin Perry, Matthias Gottmann
  • Publication number: 20080134957
    Abstract: A crucible for growing III-nitride (e.g., aluminum nitride) single crystals is provided. The crucible includes an elongated wall structure defining an interior crystal growth cavity. Embodiments include a plurality of grains and a wall thickness of at least about 1.5 times the average grain size. In particular embodiments, the crucible includes first and second layers of grains the first layer including grains forming an inside surface thereof and the second layer being superposed with the first layer. The crucible may be fabricated from tungsten-rhenium (W—Re) alloys; rhenium (Re); tantalum monocarbide (TaC); tantalum nitride (Ta2N); hafnium nitride (HfN); a mixture of tungsten and tantalum (W—Ta); tungsten (W); and combinations thereof.
    Type: Application
    Filed: March 23, 2007
    Publication date: June 12, 2008
    Applicant: Crystal IS, Inc.
    Inventors: Leo J. Schowalter, Glen A. Slack
  • Publication number: 20080112836
    Abstract: A powder metallurgy method includes the steps of forming a member, such as a work piece or an aerospace component, from a titanium alloy powder. The average size of a carbide phase in the titanium alloy powder is controlled in order to control an average size of a carbide phase in the member. In one example, an amount of carbon within the titanium alloy and size of the carbide phase are selected to provide a desirable balance of good hot workability, resisting formation of an alpha-titanium phase within the member and a desired level of fatigue performance.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 15, 2008
    Inventor: James O. Hansen
  • Publication number: 20070272724
    Abstract: A friction stir tool has an axis of rotation and a welding tip that is made of powdered metal material.
    Type: Application
    Filed: March 22, 2007
    Publication date: November 29, 2007
    Inventor: Denis Christopherson
  • Patent number: 7241415
    Abstract: A selective inhibition of sintering (SIS) technique may be used to fabricate a three-dimensional (3-D) dense metal object from a binderless metal powder. Layers of metal powder are provided on a build tank. For each layer, regions of the layer are sinter-inhibited, e.g., by depositing a sinter-inhibiting material such as a ceramic slurry, a metal salt, or oxidizing metal particles in the powder using chemicals or a concentrated heat source. Each layer may be compacted before the next layer is provided. A final compact may then be sintered. Unwanted sintered sections may be removed from the compact at boundaries formed by the sinter-inhibited (unsintered) regions, and the object extracted.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: July 10, 2007
    Assignee: University of Southern California
    Inventor: Behrokh Khoshnevis
  • Patent number: 7211217
    Abstract: A process for the manufacture of compacts, particularly cemented-carbide cutting blades, by compressing metallic powder and subsequently sintering the compacts wherein the compacts are formed in a powder press having a die-plate, an upper ram and at least one lower ram which are associated with a die-bore and are adapted to be actuated by a hydraulic press cylinder with the rams having associated thereto force-measuring devices and path-measuring devices to measure the compression forces during the ram feed motion up to the final positions, wherein the value of the energy to be applied by the upper ram is stored for a compact of predetermined geometry and dimensions and a predetermined material, that the overall energy to be applied by the upper and lower rams is further stored as a second value, that the feed motion of the upper ram is completed when the energy applied by the ram has reached the predetermined first value and the feed motion of the lower ram is effected depending on the application of the res
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: May 1, 2007
    Assignee: Fette GmbH
    Inventors: Jurgen Hinzpeter, Ulrich Zeuschner, Ingo Schmidt, Thomas Pannewitz, Udo Baltruschat, Thorsten Ehrich, Ulf Hauschild
  • Patent number: 7141675
    Abstract: Nanoporous metal foams are prepared by ignition of high nitrogen transition metal complexes. The ammonium salts of iron(III) tris[bi(tetrazolato)-amine], cobalt(III) tris(bi(tetrazolato)amine), and high nitrogen compounds of copper and silver were prepared as loose powders, pressed into pellets and wafers, and ignited under an inert atmosphere to form nanoporous metal foam monoliths having very high surface area and very low density.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: November 28, 2006
    Assignee: Los Alamos National Security, LLC
    Inventors: Bryce C. Tappan, My Hang V. Huynh, Michael A. Hiskey, Steven F. Son, David M. Oschwald, David E. Chavez, Darren L. Naud
  • Patent number: 7074506
    Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: July 11, 2006
    Assignee: SNECMA Moteurs
    Inventors: Christophe Chaput, Cyrille Delage, Andre Malie, Isabelle Porte, Bertrand Saint-Ramond
  • Patent number: 7001443
    Abstract: A metallic alloy is prepared from a gaseous mixture of at least two non-oxide precursor compounds, wherein the non-oxide precursor compounds collectively comprise the metallic constituents. The mixture of the non-oxide precursor compounds is oxidized to form a solid mixed metallic oxide. The solid mixed metallic oxide is chemically reduced to produce the metallic alloy.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 21, 2006
    Assignee: General Electric Company
    Inventors: Andrew Philip Woodfield, Eric Allen Ott, William Thomas Carter, Jr.
  • Patent number: 6863990
    Abstract: Enhancing wear and corrosion resistance of an industrial component by depositing a Ni-based alloy coating having a thickness of at least about 50 microns onto a surface of the industrial component by high velocity oxyfuel propulsion of a Ni-based alloy powder containing a) Cr, b) from about 15 to about 25 wt % Mo, c) no more than about 1 wt % Fe, and d) no more than about 1 wt % elements having an atomic number greater than 42. A Ni-based alloy powder for HVOF deposition containing a) Cr, b) from about 15 to about 25 wt % Mo, c) no more than about 1 wt % Fe, and d) no more than about 1 wt % elements having an atomic number greater than 42. A Ni-based coating on an industrial component having enhanced corrosion and wear resistance.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: March 8, 2005
    Assignee: Deloro Stellite Holdings Corporation
    Inventors: James B. C. Wu, Matthew X. Yao
  • Patent number: 6844378
    Abstract: A method of producing three-dimensional particle structures with enhanced magnetic susceptibility in three dimensions by applying a triaxial energetic field to a magnetic particle suspension and subsequently stabilizing said particle structure. Combinations of direct current and alternating current fields in three dimensions produce particle gel structures, honeycomb structures, and foam-like structures.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 18, 2005
    Assignee: Sandia Corporation
    Inventors: James E. Martin, Robert A. Anderson, Rodney L. Williamson
  • Publication number: 20040247922
    Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 9, 2004
    Applicant: SNECMA MOTEURS
    Inventors: Christophe Chaput, Cyrille Delage, Andre Malie, Isabelle Porte, Bertrand Saint-Ramond
  • Patent number: 6808659
    Abstract: Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a shell or die used in the manufacture of a dental restoration. Three-dimensional printing includes ink-jet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound shell can be deposited concurrently slice after slice and sintered/cured simultaneously.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: October 26, 2004
    Assignee: Jeneric/Pentron Incorporated
    Inventors: Martin L. Schulman, Carlino Panzera
  • Patent number: 6796869
    Abstract: A process for making an arc tube comprises the steps of sintering an arc tube composition to form the arc tube; annealing the arc tube in a vacuum; and sealing the arc tube with at least one electrode. Preferably, the arc tube annealed according to the present process is a ceramic arc tube. The annealing of the arc tubes in a vacuum preferably occurs at a temperature of between about 1000° C. and 1500° C.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 28, 2004
    Assignee: General Electric Company
    Inventors: George Eric Coxon, Charles D. Greskovich, James Anthony Brewer, Curtis E. Scott
  • Patent number: 6670048
    Abstract: A sintered sprocket is provided in which surface pressure resistance can be improved without using a forging processing. An Fe-based sintered alloy which contains C at 0.2 to 0.5% by weight, Mo at 0.2 to 1.0% by weight, and Ni at 0.2 to 1.0% by weight, and which exhibits a metallic structure in which an internal base layer comprises ferrite and bainite and in which the ferrite adjoins voids, is subjected to a rolling and is then subjected to carburizing and hardening.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: December 30, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Akira Fujiwara
  • Publication number: 20030126945
    Abstract: A coated cemented carbide tool, and a method for making the same, wherein the as-sintered substrate is formed by sintering in an atmosphere having at least a partial pressure and for a part of the time a nitrogen partial pressure.
    Type: Application
    Filed: November 13, 2002
    Publication date: July 10, 2003
    Inventors: Yixiong Liu, Donald A. Botbyl, George P. Grab, Mark S. Greenfield