Base Metal One Or More Transition Metal Patents (Class 75/245)
  • Patent number: 10513769
    Abstract: The invention relates to the rare metal smelting field, and particularly, the present invention relates to a tantalum powder for preparing capacitors and a process for preparing the tantalum powder, and to a sintered anode prepared from the tantalum powder. As to the tantalum powder as provided by the invention, its primary tantalum powder has a BET of from 3.0 to 4.5 m2/g. After the secondary agglomeration, the tantalum powder has a large particle size. The tantalum powder has an average Fisher sub-sieve size (FSSS) of 1.2 to 3.0 ?m wherein as measured with a standard sieve mesh, more than 75% of tantalum powder has a +325-mesh, and a particle size distribution D50 of more than 60 ?m, that is, the secondary particle size is high. A resultant capacitor anode prepared by sintering the tantalum powder of the invention at 1200° C. for 20 minutes and then being energized at the voltage of 20 V has the specific capacitance of from 140,000 to 180,000 ?FV/g and the residual current of less than 1.0 nA/?FV.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: December 24, 2019
    Assignee: NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
    Inventors: Yuewei Cheng, Fukun Lin, Xueqing Zhang, Guoqing Luo, Haiyan Ma, Yinghui Ma, Yanjie Wang, Xuanyu Wang, Dongjie Zhang
  • Patent number: 10373764
    Abstract: A method for producing agglomerated tantalum particles, comprising: a step for grinding secondary tantalum particles, which are obtained by reducing a tantalum salt, and adding water thereto to give a water-containing mass; a step for drying said water-containing mass to give a dry mass; a step for sieving said dry mass to give spherical particles; and a step for heating said spherical particles. A mixed tantalum powder comprising a mixture of agglomerated tantalum particles (X) with agglomerated tantalum particles (Y), wherein said agglomerated tantalum particles (X) show a cumulative percentage of particles with particle size of 3 ?m or less of 5 mass % or less after 25 W ultrasonic radiation for 10 min, while said agglomerated tantalum particles (Y) show a cumulative percentage of particles with particle size of 3 ?m or less of 10 mass % or more after 25 W ultrasonic radiation for 10 min.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: August 6, 2019
    Assignee: Global Advanced Metals USA, Inc.
    Inventors: Ryosuke Matsuoka, Eiji Kataoka, Yoshikazu Noguchi, John Koenitzer, Sridhar Venigalla
  • Patent number: 10307824
    Abstract: A method for producing titanium powder containing a solid-soluted oxygen comprises the steps of: heating titanium powder comprised of titanium particles in an oxygen-containing atmosphere in a temperature range of 160° or higher and less than 600° C. to form a titanium oxide layer on the surface of the titanium particle; and heating the titanium powder having the titanium oxide layer in an oxygen-free atmosphere in a temperature range of 450° C. or higher and a melting point of the titanium oxide layer or lower to decompose the titanium oxide layer on the surface of the titanium particle so that oxygen atoms dissociated form a solid solution in a matrix of the titanium particle.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: June 4, 2019
    Assignees: HI-LEX CORPORATION
    Inventor: Katsuyoshi Kondoh
  • Patent number: 10081847
    Abstract: The invention provides a method for the production of a metal, the method comprising the steps of mixing an oxide of the metal with a reducing agent comprising a Group II metal or a hydride thereof in the presence of water and/or an organic solvent, heating the mixture of oxide and reducing agent, leaching the resulting material with water; and washing the leached material with a dilute aqueous acid. Typically, the metal is a transition or rare earth metal, the oxide of the metal is an oxide of a transition or rare earth metal, and the reducing agent is selected from calcium or magnesium or the hydrides of calcium and magnesium. The metal is generally obtained at a purity of around 98.5-99.1%, and the method is much quicker than the methods of the prior art and has a much lower carbon footprint, thereby providing an option which is more sustainable, environmentally friendly, and accommodative for industries.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: September 25, 2018
    Assignee: UNIVERSITY OF BRADFORD
    Inventors: Jeya Kumari, Raj Patel
  • Patent number: 9482071
    Abstract: An apparatus and method for restricting fluid flow with a seat assembly. The seat is configured to go from a first position, in which it is adapted to engage a plug element, to a second position, in which the plug element passes through the seat. A second portion of the seat, and alternatively of a housing in which the seat is disposed, is formed of a disintegrable material. The second portion of the seat and housing comprising the disintegrable material are isolated from a fluid flow when engaged with the seat.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 1, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Nicholas Carrejo, Omar R. Espinoza, Sean L. Gaudette
  • Patent number: 9336955
    Abstract: The present invention relates to a niobium alloy for capacitors comprising as an alloy component from 0.01 to 10 atom % of at least one element selected from the group consisting of the elements belonging to Groups 2 to 16 of the periodic table and further comprising diniobium mononitride crystals of from 0.1 to 70 mass %, wherein a powder of the niobium alloy has an average particle size of 0.05 to 5 ?m and a BET specific surface area of 0.5 to 40 m2/g, a granulated product of the niobium alloy having an average particle size of 10 to 500 ?m, a sintered body of the powder of the niobium alloy or granulated product thereof, a capacitor and a producing method thereof using the sintered body. A niobium capacitor using the powder of the niobium alloy of the present invention or a granulated product thereof has high capacitance and small leakage current value and is excellent in high-temperature property and heat resistance property.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: May 10, 2016
    Assignee: SHOWA DENKO K.K.
    Inventors: Kazuhiro Omori, Kazumi Naito
  • Publication number: 20150147217
    Abstract: An article having a nanocomposite magnetic component and method of forming a nanocomposite magnetic component are disclosed. The article includes a plurality of nanocrystalline flake particles bonded along their prior particle boundaries. The nanocrystalline flake particles have a median grain size less than about 30 nanometers and include a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: General Electric Company
    Inventors: Francis Johnson, Wanming Zhang, Min Zou, Christina Hongbing Chen
  • Publication number: 20150143953
    Abstract: A refractory metal matrix-ceramic compound multi-component composite material with the super-high melting point is disclosed. At least one ceramic compound A and at least one refractory bonding metal B are fused together by the smelting process to make the multi-component composite material. The fused ingredients of the multi-component composite material are mAnB, and (m+n)max=13. The positive integer m is the number of the kinds of the ceramic components A, and the positive integer n is the number of the kinds of the refractory bonding metals B. The absolute value of the combining enthalpy of the ceramic compound A is larger than the absolute value of the combining enthalpy between the ceramic compound A and the refractory bonding metal B. The multi-component composite material has the properties including over 3000° C. melting point, high stability, hardness, ductility, and fusibility in high or low temperature, fast production, and low cost.
    Type: Application
    Filed: October 4, 2013
    Publication date: May 28, 2015
    Applicant: National Tsing Hua University
    Inventor: Swe-Kai CHEN
  • Patent number: 9030799
    Abstract: Processes comprising: melting a mixture comprising a valve metal precursor and a diluting agent in at least one first vessel under a first set of temperature and residence time conditions; transferring the mixture to at least one second vessel; and initiating, in the at least one second vessel, a reaction of the valve metal precursor to form a valve metal under a second set of temperature and residence time conditions; valve metal powder prepared thereby and uses therefor.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 12, 2015
    Assignee: H.C. Starck GmbH
    Inventors: Josua Löffelholz, Jürgen Hilpert
  • Patent number: 9017602
    Abstract: A method of forming a wrought material having a refined grain structure is provided. The method comprises providing a metal alloy material having a depressed solidus temperature and a low temperature eutectic phase transformation. The metal alloy material is molded and rapidly solidified to form a fine grain precursor that has fine grains surrounded by a eutectic phase with fine dendritic arm spacing. The fine grain precursor is plastic deformed at a high strain rate to cause recrystallization without substantial shear banding to form a fine grain structural wrought form. The wrought form is then thermally treated to precipitate the eutectic phase into nanometer sized dispersoids within the fine grains and grain boundaries and to define a thermally treated fine grain structure wrought form having grains finer than the fine grains and the fine dendritic arm spacing of the fine grain precursor.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 28, 2015
    Assignee: Thixomat, Inc.
    Inventors: Raymond F. Decker, Jack Huang, Sanjay G. Kulkarni, Stephen E. Lebeau, Ralph E. Vining
  • Patent number: 8995112
    Abstract: At least one of a valve metal sintered capacitor anode body and a suboxide valve metal sintered capacitor anode body with a particle density of >88% of a theoretical density.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 31, 2015
    Assignee: H. C. Starck GmbH
    Inventors: Christoph Schnitter, Holger Brumm
  • Publication number: 20150056465
    Abstract: A process for producing a titanium load-bearing structure, which comprises cold-gas dynamic spraying of titanium particles on to a suitably shaped support member, and a titanium load bearing structure so-produced.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 26, 2015
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Saden Zahiri, Mahnaz Jahedi, Jeffrey Lang, Tiimothy Fox, Richard Fox
  • Patent number: 8961816
    Abstract: Getter devices based on powders of alloys particularly suitable for hydrogen and nitrogen sorption are described. Such alloys have a composition including zirconium, vanadium, titanium and, optionally, one or more elements selected from iron, chromium, manganese, cobalt, nickel and aluminum.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: February 24, 2015
    Assignee: Saes Getters S.p.A.
    Inventors: Alberto Coda, Alessandro Gallitognotta, Antonio Bonucci, Andrea Conte
  • Patent number: 8920712
    Abstract: A process including: (a) forming a powder blend by mixing titanium powders, (b) consolidating the powder blend by compacting to provide a green compact, (c) heating the green compact thereby releasing absorbed water from the titanium powder, (d) forming ?-phase titanium and releasing atomic hydrogen from the hydrogenated titanium by heating the green compact in an atmosphere of hydrogen emitted by the hydrogenated titanium, (e) reducing surface oxides on particles of the titanium powder with atomic hydrogen released by heating of the green compact, (f) diffusion-controlled chemical homogenizing of the green compact and densification of the green compact by heating followed by holding resulting in complete or partial dehydrogenation to form a cleaned and refined compact, (g) heating the cleaned and refined green compact in vacuum thereby sintering titanium to form a sintered dense compact, and (h) cooling the sintered dense compact to form a sintered near-net shaped article.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: December 30, 2014
    Assignee: Advanced Materials Products, Inc.
    Inventors: Orest M. Ivasishin, Dmitro G. Savvakin, Vladimir S. Moxson, Vladimir A. Duz, Mykola M. Gumenyak
  • Publication number: 20140377119
    Abstract: A titanium alloy comprising an elevated level of oxygen is disclosed. The alloy may have 5.5 to 6.75 weight percent of aluminum, 3.5 to 4.5 weight percent of vanadium, 0.21 to 0.30 weight percent of oxygen, and up to 0.40% of weight percent of iron. The alloy may also have a minimum ultimate tensile strength of 130,000 psi, a minimum tensile yield strength of 120,000 psi, and a minimum ductility of 10% elongation. Also disclosed is a method for manufacturing components having the aforementioned alloy.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 25, 2014
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Patrick Connors, David Main, Harvey Fisher
  • Publication number: 20140373680
    Abstract: The present disclosure is related to homogeneous alloys comprising titanium and 9% to less than 20% by weight of tungsten, wherein the alloy has a yield strength of at least 120,000 psi and ductility of least 20% elongation; and with further alloying an ultimate tensile strength of at least 200,000 psi and useful ductility of at least 2% elongation; and with the addition of ceramic particulate reinforcements can exhibit an ultimate tensile strength of at least 180,000 psi. Products and metal matrix composites comprising such homogeneous alloys are also disclosed. The metal matrix composites further comprise a discontinuous reinforcement chosen from TiC, TiB2, or TiB, particles or combinations of such particles. Method of making such alloys and composites as well as products made from such alloys and composites are also disclosed.
    Type: Application
    Filed: April 21, 2014
    Publication date: December 25, 2014
    Applicant: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Patent number: 8900340
    Abstract: A tubular target is formed of molybdenum or a molybdenum alloy which has an oxygen content of less than 50 ?g/g, a density of greater than 99% of the theoretical density and an average grain size of less than 100 ?m. The molybdenum or molybdenum alloy tube may be produced by extrusion and it is formed with walls having a wall thickness that increases towards the ends of the tube. The molybdenum tube has a backing tube of titanium or titanium alloy that is attached inside with a material bond connection. Alternatively, the backing tube is formed of austenitic steel or a copper alloy.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 2, 2014
    Assignee: Plansee SE
    Inventors: Peter Abenthung, Karl Huber, Harald Lackner, Gerhard Leichtfried, Peter Polcik, Christian Weratschnig
  • Patent number: 8889064
    Abstract: A method for preparing a part in nickel-based superalloy is disclosed. The method comprises the following steps: elaborating a nickel-based superalloy with a composition capable of providing hardening by double precipitation of a gamma? phase and of a gamma? or delta phase; atomizing a melt of the superalloy in order to obtain a powder; sifting the powder; introducing the powder into a container; closing and applying vacuum to the container; densifiying the powder and the container in order to obtain an ingot or a billet; hot forming said ingot or said billet; wherein before the densification step, the powder and the container are heated for at least 4 hrs, at a temperature both above 1,140° C. and at least 10° C. less than the solidus temperature of the superalloy, and at a pressure causing densification of less than or equal to 15% of the powder volume.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: November 18, 2014
    Assignee: Aubert & Duval
    Inventor: Gérard Raisson
  • Publication number: 20140334964
    Abstract: Titanium alloy containing iron, that is, iron-containing titanium alloy having high strength and hardness in which iron in a composition which cannot be realized in a conventional method, is contained with no segregation, and is provided in lower cost. The ?+? titanium alloy or ? titanium alloy is produced by a forming process such as hot extrusion of titanium alloy powder containing 3 to 15 mass % of iron powder. The method for production of the ?+? titanium alloy or ? titanium alloy includes a step of mixing 3 to 15 mass % of iron powder and titanium alloy powder as the remainder, and a step of performing a forming process of hot extrusion on this powder mixture.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 13, 2014
    Inventors: Osamu Kanou, Satoshi Sugawara, Hideo Takatori
  • Publication number: 20140302338
    Abstract: A valve metal powder having a particle shape factor mean value f, as determined by SEM image analysis, of 0.65?f?1, said powder has an average agglomerate particle size D50 value, as determined with a MasterSizer in accordance with ASTM B 822, of 40 to 200 ?m and wherein the valve metal powder is niobium.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: H.C. Starck GmbH
    Inventors: Josua Löffelholz, Jürgen Hilpert
  • Publication number: 20140255240
    Abstract: A process includes sintering hydrogenated titanium or titanium hydride (TiH2) and/or Ti metal in a dynamically controlled hydrogen atmosphere with hydrogen partial pressure greater than 0.
    Type: Application
    Filed: January 10, 2014
    Publication date: September 11, 2014
    Inventors: Zhigang Zak Fang, Pei Sun, James Paramore, Hongtao Wang, Mark Koopman, Lu Yang
  • Publication number: 20140212319
    Abstract: A high strength titanium alloy member with superior fatigue resistance, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, hot plastic forming and/or heat treating the sintered titanium alloy member to obtain a processed member, and surface treating the processed member to provide compressive residual stress.
    Type: Application
    Filed: April 27, 2012
    Publication date: July 31, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Tohru Shiraishi, Yoshiki Ono, Yuji Araoka
  • Patent number: 8790572
    Abstract: Titanium flat product is produced by passing a titanium powder green flat material through a pre-heating station and heated under a protective atmosphere to a temperature at least sufficient for hot rolling. The pre-heated flat material then is passed through a rolling station while still under a protective atmosphere and hot rolled to produce a hot rolled flat product of a required level of hot densification. The hot rolled flat product is passed through a cooling station while still under a protective atmosphere, and cooled to a temperature at which it can be passed out of a protective atmosphere. In the process, the hot rolling provides the predominant hot densification mechanism involved.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 29, 2014
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Nigel Austin Stone, Robert Wilson, Merchant Yousuff, Mark Gibson
  • Publication number: 20140154126
    Abstract: A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a composite system that has advantageous energy absorbing characteristics. The multiple phases of this composite system include an aggregate phase of hard particles bound with a matrix phase. The matrix phase has at least two phases with varying amounts of aluminum, nickel, and titanium. The matrix phase forms a bond with the hard particles and has varying degrees of hard and ductile phases. The composite system may be used alone or bonded to other materials such as bodies of titanium or ceramic in the manufacture of ballistic armor tiles.
    Type: Application
    Filed: November 18, 2013
    Publication date: June 5, 2014
    Inventor: Robert G. Lee
  • Publication number: 20140044584
    Abstract: A titanium alloy containing copper, which cannot be realized by a conventional method, is provided, having a composition in which copper is contained in titanium with no segregation, and having improved strength and hardness. In addition a method is also provided, in which the titanium alloy is produced at lower cost than in a conventional method. The ?+? or ? titanium alloy contains copper at 1 to 10 mass %, has a crystal phase of ? and ? phase or of ? phase, is formed of crystal particles not more than 100 ?m, and has a copper concentration per an arbitrary specified 1 mm3 portion of the crystal phase at within ±40% compared to another arbitrary specified portion. The ?+? or ? titanium alloy is produced by mixing 1 to 10 mass % of copper powder and the remainder of titanium alloy powder and then pressing and forming while being heated.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 13, 2014
    Applicants: TOHO TITANIUM CO., LTD., SANYO SPECIAL STEEL CO., LTD.
    Inventors: Osamu Kanou, Satoshi Sugawara, Hideo Takatori
  • Publication number: 20140010701
    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: June 28, 2013
    Publication date: January 9, 2014
    Applicant: GKSS-Forschungszentrum Geesthacht GmbH
    Inventors: Fritz Appel, Jonathan Paul, Michael Oehring
  • Patent number: 8603366
    Abstract: In an electric contact material of silver matrix capable of resisting arc erosion and containing no cadmium-composite, an Ag—(SnO2+In2O3) composite containing 9˜11% of (SnO2+In2O3) or an Ag—Cu oxide, composite containing 15˜25% of Cu oxide is used. The electrical contact material has a contact resistance of 5˜60 milliohms (mohm) and an arc erosion resistance capability up to 2*103˜10*103 times provided that the Vickers hardness (Hv) of the material is 100˜150, the measured current is 1˜5 amperes, and the measured voltage is 10˜20 volts. Two electrical contacts maintain an arc erosion resisting capability at the condition of a low contact resistance when the electrical contact material is formed on a surface of a metal substrate of an electric connector.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: December 10, 2013
    Assignee: C.C.P. Contact Probes Co., Ltd.
    Inventors: Chin-Wei Hung, Wen-Yuan Chiang, Wei-Chu Chen, Chih-Jung Wang, Wen-Ying Cheng, Bor-Chen Tsai, Wei-Chao Wang
  • Patent number: 8562714
    Abstract: An article includes a microscale composite material having a matrix with titanium boride particles configured to form an insert in a metallic mass being comprised of material other than a consolidated titanium-based metallic composition having titanium particles.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: October 22, 2013
    Assignee: General Electric Company
    Inventors: Andrew P. Woodfield, Eric A. Ott, Clifford E. Shamblen
  • Patent number: 8551905
    Abstract: A gold-carbon compound that is a reaction product of gold and carbon, wherein the gold and the carbon form a single phase material that is meltable. The compound is one in which the carbon does not phase separate from the gold when the single phase material is heated to a melting temperature.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 8, 2013
    Assignee: Third Millennium Metals, LLC
    Inventors: Jason V. Shugart, Roger C. Scherer
  • Patent number: 8546292
    Abstract: A zinc-carbon compound that is a reaction product of zinc and carbon, wherein the zinc and the carbon form a single phase material that is meltable. The compound is one in which the carbon does not phase separate from the zinc when the single phase material is heated to a melting temperature.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 1, 2013
    Assignee: Third Millennium Metals, LLC
    Inventors: Jason V. Shugart, Roger C. Scherer
  • Patent number: 8541335
    Abstract: A lead-carbon compound that is a reaction product of lead and carbon, wherein the lead and the carbon form a single phase material that is meltable. The compound is one in which the carbon does not phase separate from the lead when the single phase material is heated to a melting temperature.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: September 24, 2013
    Assignee: Third Millennium Metals, LLC
    Inventors: Jason V. Shugart, Roger C. Scherer
  • Patent number: 8500843
    Abstract: An article of controlled porosity. The porosity of the article may be controlled by display of a particular pore character with respect to pore size, morphology and distribution through a metal, including a uniform distribution. The uniform distribution of porosity within the metal may be provided by a way of a coated pore former including a homogenizing agent thereat to maintain a uniform distribution of pore former throughout a mixture of the coated pore former and a powdered metal. A metal article may be formed of varying layers of porous metals each formed from an independent mixture of coated pore former and metal as indicated.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: August 6, 2013
    Assignee: Praxis Powder Technology, Inc.
    Inventor: Joseph A. Grohowski
  • Publication number: 20130155581
    Abstract: Recovery of a metal from scrap materials or other source materials containing two or more metals or other materials by iodization of the materials or parts of them to create multiple metal iodides of respective metals, separating the iodides and dissociating at least one of the iodides to recover its metal component.
    Type: Application
    Filed: July 3, 2012
    Publication date: June 20, 2013
    Applicant: ORCHARD MATERIAL TECHNOLOGY LLC
    Inventors: Lawrence F. McHugh, Leonid N. Shekhter, Yuri V. Blagoveshchenskiy
  • Publication number: 20130140159
    Abstract: A process for producing a Cu—Cr material by powder metallurgy for a switching contact, in particular for vacuum switches, includes the steps of pressing a Cu—Cr powder mixture formed from Cu powder and Cr powder and sintering the pressed Cu—Cr powder mixture to form the material of the Cu—Cr switching contact. The sintering or a subsequent thermal treatment process is carried out with an alternating temperature profile, in which the Cu—Cr powder mixture or the Cu—Cr material is heated above an upper temperature limit value and cooled again below a lower temperature limit value at least twice in alternation. All of the steps are carried out at temperatures at which no molten phase forms.
    Type: Application
    Filed: August 1, 2011
    Publication date: June 6, 2013
    Applicant: PLANSEE POWERTECH AG
    Inventors: Claudia Kowanda, Frank Müller
  • Publication number: 20130101455
    Abstract: A method of forming a sintered nickel-titanium-rare earth (Ni—Ti-RE) alloy includes adding one or more powders comprising Ni, Ti, and a rare earth constituent to a powder consolidation unit comprising an electrically conductive die and punch connectable to a power supply. The one or more powders are heated at a ramp rate of about 35° C./min or less to a sintering temperature, and pressure is applied to the powders at the sintering temperature, thereby forming a sintered Ni—Ti-RE alloy.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 25, 2013
    Applicant: University of Limerick
    Inventor: University of Limerick
  • Patent number: 8425651
    Abstract: A powder metal composite is disclosed. The powder metal composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The composite also includes a plurality of dispersed first particles each comprising a first particle core material that comprises Mg, Al, Zn or Mn, or a combination thereof, dispersed in the nanomatrix; a plurality of dispersed second particles intermixed with the dispersed first particles, each comprising a second particle core material that comprises a carbon nanoparticle; and a solid-state bond layer extending throughout the nanomatrix between the dispersed first and second particles. The nanomatrix powder metal composites are uniquely lightweight, high-strength materials that also provide uniquely selectable and controllable corrosion properties, including very rapid corrosion rates, useful for making a wide variety of degradable or disposable articles, including various downhole tools and components.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 23, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20130071284
    Abstract: A process for production of titanium alloy material has steps of hydrogenating titanium alloy material to generate hydrogenated titanium alloy; grinding, sifting and dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder; adding at least one of copper powder, chromium powder or iron powder to obtain titanium alloy complex powder; consolidating the titanium alloy complex powder by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule. In addition, titanium alloy complex powder and titanium alloy material produced by the process are provided.
    Type: Application
    Filed: May 31, 2011
    Publication date: March 21, 2013
    Inventors: Osamu Kano, Hideo Takatori, Satoshi Sugawara
  • Publication number: 20130071283
    Abstract: Titanium alloy complex powder is yielded by hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy, grinding and sifting it to obtain hydrogenated titanium alloy powder, adding ceramic powder selected from SiC, TiC, SiOx, TiOx (here, index x is a real number which is in 1?x?2) and Al2O3, and dehydrogenating the mixture of the hydrogenated titanium alloy powder and the ceramic powder. In addition, consolidated titanium alloy material is obtained by CIP process and subsequent HIP process to the titanium alloy complex powder or by HIP process after filling the titanium alloy complex powder into capsule.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 21, 2013
    Applicant: TOHO TITANIUM CO., LTD.
    Inventors: Osamu Kano, Hideo Takatori, Satoshi Sugawara
  • Patent number: 8349759
    Abstract: A metal-carbon composition including a metal and carbon, wherein the metal and the carbon form a single phase material, characterized in that the carbon does not phase separate from the metal when the single phase material is heated to a melting temperature, the metal being selected from the group consisting of gold, silver, tin, lead, and zinc.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: January 8, 2013
    Assignee: Third Millennium Metals, LLC
    Inventors: Jason V. Shugart, Roger C. Scherer
  • Publication number: 20120269671
    Abstract: A process for producing a weldable titanium or titanium alloy wire characterised in that full consolidation of the wire is achieved via solid-state processing entailing compaction, extrusion, and rolling, whereby melting of the constituent titanium sponge particles does not occur.
    Type: Application
    Filed: October 21, 2010
    Publication date: October 25, 2012
    Inventor: Kevin Dring
  • Patent number: 8197885
    Abstract: A method for producing a metal article according to one embodiment may include: Providing a supply of a sodium/molybdenum composite metal powder; compacting the sodium/molybdenum composite metal powder under sufficient pressure to form a preformed article; placing the preformed article in a sealed container; raising the temperature of the sealed container to a temperature that is lower than a sintering temperature of molybdenum; and subjecting the sealed container to an isostatic pressure for a time sufficient to increase the density of the article to at least about 90% of theoretical density.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 12, 2012
    Assignee: Climax Engineered Materials, LLC
    Inventors: Dave Honecker, Christopher Michaluk, Carl Cox, James Cole
  • Patent number: 8177947
    Abstract: Provided is a sputtering target in which the ratio of X-ray intensity of (110) measured with X-ray diffraction is 0.4 or less, and even 0.2 or less in a Ta or Ta alloy target. Further provided is a sputtering target in which the ratio of X-ray intensity of (110) on a Ta or Ta alloy target surface measured with X-ray diffraction is 0.8 or less, and the ratio of the foregoing X-ray intensity at a depth of 100 ?m or deeper is 0.4 or less. This Ta or Ta alloy target is capable of minimizing the fluctuation of the deposition speed for each target throughout the target life of a sputtering target, and thereby improving and stabilizing the production efficiency of semiconductors during the sputtering process, and contributing to the reduction of production costs.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 15, 2012
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Hirohito Miyashita
  • Publication number: 20120081840
    Abstract: A method for producing agglomerated tantalum particles, comprising: a step for grinding secondary tantalum particles, which are obtained by reducing a tantalum salt, and adding water thereto to give a water-containing mass; a step for drying said water-containing mass to give a dry mass; a step for sieving said dry mass to give spherical particles; and a step for heating said spherical particles. A mixed tantalum powder comprising a mixture of agglomerated tantalum particles (X) with agglomerated tantalum particles (Y), wherein said agglomerated tantalum particles (X) show a cumulative percentage of particles with particle size of 3 ?m or less of 5 mass % or less after 25 W ultrasonic radiation for 10 min, while said agglomerated tantalum particles (Y) show a cumulative percentage of particles with particle size of 3 ?m or less of 10 mass % or more after 25 W ultrasonic radiation for 10 min.
    Type: Application
    Filed: November 11, 2011
    Publication date: April 5, 2012
    Applicant: CABOT CORPORATION
    Inventors: Ryosuke Matsuoka, Eiji Kataoka, Yoshikazu Noguchi, John Koenitzer, Sridhar Venigalla
  • Publication number: 20120003114
    Abstract: A bulky consolidated nanostructured manganese aluminum alloy includes at least about 80% of a magnetic ? phase and having a macroscopic composition of MnXAlYDoZ, where Do is a dopant, X ranges from 52-58 atomic %, Y ranges from 42-48 atomic %, and Z ranges from 0 to 3 atomic %. A method for producing a bulky nanocrystalline solid is provided. The method includes melting a mixture of metals to form a substantially homogenous solution. The method also includes casting the solution to form ingots, measuring compositions of the ingots; crushing the ingots to form crushed powders, and milling the crushed powders to form nanocrystalline powders. The method further includes verifying the presence of ? phase and determining the amount of the ? phase, and simultaneously consolidating the nanocrystalline powders into a bulky nanocrystalline solid and undergoing phase transformation from ? phase to at least 80% ? phase, ? and ?2 phases.
    Type: Application
    Filed: June 20, 2011
    Publication date: January 5, 2012
    Inventors: Ian Baker, Qi Zeng
  • Patent number: 8088231
    Abstract: A metallic article is prepared by first furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively containing the constituent elements of the metallic article in their respective constituent-element proportions. The constituent elements together form a titanium-base alloy having a stable-oxide-forming additive element therein, such as magnesium, calcium, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, and mixtures thereof. The stable-oxide-forming additive element forms a stable oxide in a titanium-based alloy. At least one additive element is present at a level greater than its room-temperature solid solubility limit in the titanium-base alloy. The precursor compounds are chemically reduced to produce an alloy material, without melting the alloy material. The alloy material may be consolidated.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 3, 2012
    Assignee: General Electric Company
    Inventors: Andrew Philip Woodfield, Clifford Earl Shamblen, Eric Allen Ott, Michael Francis Xavier Gigliotti
  • Patent number: 8057750
    Abstract: A process of producing magnetite with a high purity of greater than 90% magnetite, more typically greater than 98% magnetite, by reducing powdered hematite into magnetite under maximum temperatures of about 700 to 1300° C. against a counter-current of or concurrent with methane or natural gas in a heating device. The amount of methane used to reduce the hematite may be about 0.18 and 1.8 standard cubic feet of methane per pound of hematite. A product of high purity methane produced from the process is also provided, where the magnetite is below 1 ?M in diameter and has a magnetic saturation greater than 90.0 emu/g. Corresponding apparatus using an improved feeder system for powdered hematite is provided.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: November 15, 2011
    Assignee: Pittsburgh Iron Oxide, LLC
    Inventors: Dale L. Nickels, Thomas E. Weyand, Michael E. Sawayda
  • Patent number: 8043404
    Abstract: Disclosed herein are extruded titanium metal matrix composites with enhanced ductility. Also disclosed is the extrusion at high extrusion ratio of titanium metal matrix composites produced by powder metal processes. The ductility and machinability of these titanium metal matrix composites extruded at high extrusion ratios combined with their wear resistance and excellent imaging characteristics makes these high extrusion ratio extruded titanium metal matrix composites useful as biological implants, including prosthetic devices. Also disclosed are articles such as orthopedic implants for knee, hip, spine or other biomedical devices, with enhanced properties, made from the disclosed extruded material.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: October 25, 2011
    Assignee: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Patent number: 8038760
    Abstract: A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/molybdenum disulfide composite metal powder under sufficient pressure to cause the mixture to behave as a nearly solid mass.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: October 18, 2011
    Assignee: Climax Engineered Materials, LLC
    Inventors: Matthew C. Shaw, Carl V. Cox, Yakov Epshteyn
  • Patent number: 7998230
    Abstract: A multi-metal powder, in particular for producing diamond tools comprises iron copper, cobalt and molybdenum whose contents are expressed in the following mass percentages: Fe+Cu+Co+Mo=98 mass %, the rest being oxygen and production impurities, wherein 15%=Cu=35%, 0.03=Mo/(Co+Fe+Mo)=0.10, —Fe/Co=2. A sintered compact is obtained by hot compaction of said multi-metal powder, for example, in the form of a diamond cutting tool.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 16, 2011
    Assignee: Eurotungstene Poudres
    Inventors: Maxime Bonneau, Jean-François Lartigue, Thierry Commeau, Christian Huet
  • Publication number: 20110170238
    Abstract: At least one of a valve metal sintered capacitor anode body and a suboxide valve metal sintered capacitor anode body with a particle density of >88% of a theoretical density.
    Type: Application
    Filed: August 25, 2009
    Publication date: July 14, 2011
    Applicant: H.C. STARCK GMBH
    Inventors: Christoph Schnitter, Holger Brumm