Nonmetal Is Elemental Carbon Patents (Class 419/11)
  • Patent number: 11156036
    Abstract: A cutting element may include a substrate including a plurality of metal carbide particles and a first metal binder having a first metal binder content; an outer layer of polycrystalline diamond material at an end of the cutting element, the polycrystalline diamond material including a plurality of interconnected diamond particles; and a plurality of interstitial regions disposed among the interconnected diamond particles, the plurality of interstitial regions containing a second metal binder having a second metal binder content. The cutting element also includes at least one transition zone between the substrate and the outer layer, the at least one transition zone including a plurality of refractory metal carbide particles and a third metal binder having a third metal binder content, the third metal binder content being less than the first metal binder content and the second metal binder content.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: October 26, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Madapusi K. Keshavan, Ronald B. Crockett, Neil Cannon, Dwain Norris, David R. Hall
  • Patent number: 11111182
    Abstract: A ceramic sintered body containing aluminum oxide, tungsten carbide and zirconium oxide, wherein: the zirconium oxide contains ZrO and ZrO2; the ZrO2 has a crystal structure or structures of one or two kinds selected from the group consisting of a tetragonal crystal structure and a cubic crystal structure; and when, in X-ray diffraction, regarding a peak intensity for a (111) plane of the ZrO as being denoted by I1, regarding a peak intensity for a (101) plane of ZrO2 having a tetragonal crystal structure as being denoted by I2t, and also regarding a peak intensity for a (111) plane of ZrO2 having a cubic crystal structure as being denoted by I2c, a ratio of I1 based on a total of I1, I2t and I2c [I1/(I1+I2t+I2c)] is from 0.05 or more to 0.90 or less.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: September 7, 2021
    Assignee: TUNGALOY CORPORATION
    Inventor: Takashi Watanabe
  • Patent number: 11114254
    Abstract: A circuit breaker including at least two contact tip that comprise an electrical contact material comprising silver (Ag) and tungsten (W). The contact tip further comprises a graphene material (Gr) additively mixed in Ag as being denoted as AgGr0.3% or AgGr0.5% which is mixed with tungsten (W) to form (AgGr0.3)W50 or (AgGr0.5)W50 called a silver-graphene tungsten composite material.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 7, 2021
    Assignee: Siemens Industry, Inc.
    Inventors: Hai Chen, Jesus Hernandez
  • Patent number: 11085093
    Abstract: An ultra-high strength maraging stainless steel with nominal composition (in mass) of C?0.03%, Cr: 13.0-14.0%, Ni: 5.5-7.0%, Co: 5.5-7.5%, Mo: 3.0-5.0%, Ti: 1.9-2.5%, Si: ?0.1%, Mn: ?0.1%, P: ?0.01%, S: ?0.01%, and Fe: balance. The developed ultra-high strength maraging stainless steel combines ultra-high strength (with ?b?2000 MPa, ?0.2?1700 MPa, ??8% and ??40%), high toughness (KIC?83 MPa·m½) and superior salt-water corrosion resistance (with pitting potential Epit?0.15 (vs SCE)). Therefore, this steel is suitable to make structural parts that are used in harsh corrosive environments like marine environment containing chloride ions, etc.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: August 10, 2021
    Assignees: The Boeing Company, Institute of Metal Research
    Inventors: Jialong Tian, Ke Yang, Wei Wang, Yiyin Shan, Wei Yan
  • Patent number: 10906099
    Abstract: A preparation method of high purity and densified tungsten-titanium metal which mixes titanium metal powder and tungsten metal powder together; adds metallic nitrates (such as nickel nitrate) as combustion improvers; then taking into the account of the characteristics of metal nitrate, which is soluble in alcohols to form a liquidous precursor, adds metal powder to mix together thoroughly, so that the sintering agent is expected to be colloid and uniformly spread among the tungsten-titanium metal powder. The preparation method significantly reduces the ratio of the combustion improver during the preparation of the high purity and densified tungsten-titanium target material.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: February 2, 2021
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Mau-Sheng Chiou, Chien-Hung Liao, Chao-Nan Wei, Hui-Yun Bor, Kuan-Zong Fung
  • Patent number: 10883317
    Abstract: A polycrystalline diamond compact includes a polycrystalline diamond material having a plurality of grains of diamond bonded to one another by inter-granular bonds and an intermetallic gamma prime (??) or ?-carbide phase disposed within interstitial spaces between the inter-bonded diamond grains. The ordered intermetallic gamma prime (??) or ?-carbide phase includes a Group VIII metal, aluminum, and a stabilizer. An earth-boring tool includes a bit body and a polycrystalline diamond compact secured to the bit body. A method of forming polycrystalline diamond includes subjecting diamond particles in the presence of a metal material comprising a Group VIII metal and aluminum to a pressure of at least 4.5 GPa and a temperature of at least 1,000° C. to form inter-granular bonds between adjacent diamond particles, cooling the diamond particles and the metal material to a temperature below 500° C., and forming an intermetallic gamma prime (??) or ?-carbide phase adjacent the diamond particles.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: January 5, 2021
    Assignees: Baker Hughes Incorporated, Diamond Innovations, Inc.
    Inventors: Marc W. Bird, Andrew Gledhill
  • Patent number: 10821519
    Abstract: The present disclosure generally relates to methods and apparatuses for laser shock peening during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed microstructural and/or physical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventor: Scott Alan Gold
  • Patent number: 10753395
    Abstract: An oil-impregnated sintered bearing (8) includes a copper-iron-based sintered compact containing 40 mass % or more of copper, and has inner pores impregnated with an oil. The sintered compact has: a copper structure derived from copper powder (13) of partially diffusion-alloyed powder (11) in which copper powder (13) having a particle diameter of 20 ?m or less is diffused on and joined to a surface of iron powder (12) in advance; and a copper structure derived from elemental copper powder (14).
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 25, 2020
    Assignee: NTN CORPORATION
    Inventors: Shinji Komatsubara, Yoshinori Ito, Tadahiro Uchiyama
  • Patent number: 10697495
    Abstract: A sintered bearing exhibits a less of a hard iron alloy phase, and has an excellent wear resistance and cost performance under low-revolution and high-load use conditions. The sintered bearing contains Cu: 10 to 55% by mass, Sn: 0.5 to 7% by mass, Zn: 0 to 4% by mass, P: 0 to 0.6% by mass, C: 0.5 to 4.5% by mass and a remainder composed of Fe and inevitable impurities. An area ratio of a free graphite dispersed in a metal matrix of the bearing is 5 to 35%; an area ratio of a copper phase in the metal matrix of a bearing surface is not less than 30%; a porosity thereof is 16 to 25%; a hardness of an iron alloy phase in the matrix is Hv 65 to 200; and raw material powders employ at least one of a crystalline graphite powder and a flake graphite powder each having an average particle size of 10 to 100 ?m.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 30, 2020
    Assignee: Diamet Corporation
    Inventors: Yoshinari Ishii, Yasuhiro Tsukada, Tomoe Obata
  • Patent number: 10683584
    Abstract: Embodiments disclosed herein are directed to methods and systems for X-ray imaging and/or inspection of a PCD element in a protective leaching cup, which may be placed in a tray. Embodiments include inspection of one or more characteristics between the protective leaching cup and the PCD element prior to and/or after leaching of the PCD element. Embodiments also include using X-ray imaging to assist with positioning the PCD element in the protective leaching cup. Embodiments further include inspection of one or more defects in the PCD element during processing and/or after usage by X-ray technique.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 16, 2020
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Tyler Scott Dunaway, Greg Carlos Topham, Renato Ventura
  • Patent number: 10626056
    Abstract: A construction comprising a sintered polycrystalline super-hard layer having mutually opposite reinforced boundaries, each of which is bonded to a respective reinforcement structure, in which the super-hard layer includes polycrystalline diamond (PCD) material or polycrystalline cubic boron nitride (PCBN) material. The construction will be configured such that the equivalent circle diameter of each reinforced boundary is at least ten times the mean thickness of the super-hard layer between them. The reinforcement structures will be substantially free of material having a melting point of less than 2,000 degrees Celsius, at least adjacent the reinforced boundaries.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: April 21, 2020
    Assignee: Element Six Limited
    Inventor: Karl Bernt-Ola Sandström
  • Patent number: 10465449
    Abstract: The present disclosure relates to a polycrystalline diamond compact (PDC) with a fiber-reinforces substrate. The disclosure further relates to method of forming such a PDC.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 5, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Gagan Saini
  • Patent number: 10439228
    Abstract: Provided is a method for forming noble metal nanoparticles on a support. In particular, the method includes heating precursors of the noble metal nanoparticles in a spiral glass tube reactor to reduce the precursors to form the noble metal nanoparticles on the support.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: October 8, 2019
    Assignee: Nanyang Technological University
    Inventors: Weijiang Zhou, Miao Li, Siew Hwa Chan
  • Patent number: 10415127
    Abstract: A turbomachine component and method for fabricating the turbomachine component are provided. The turbomachine component may include a matrix material and carbon nanotubes combined with the matrix material. The matrix material may include a metal or a polymer. The carbon nanotubes may be contacted with the metal to form a metal-based carbon nanotube composite, and the metal-based carbon nanotube composite may be processed to fabricate the turbomachine component.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 17, 2019
    Assignee: DRESSER-RAND COMPANY
    Inventors: Harry F. Miller, H. Allan Kidd
  • Patent number: 10352104
    Abstract: A drill bit button insert is attached to a button inserts mounted in a drill bit and performs a drilling. The drill bit button insert includes a tip body and an abrasive layer that is formed of a diamond sintered body harder than the tip body and is coated at least at the button insert working surface of the tip body. The abrasive layer has two or more high hardness layers and a low hardness layer having a hardness lower than that of the high hardness layers disposed between the high hardness layers. The high hardness layers and the low hardness layer are provided from the surface side of the abrasive layer toward the tip body side.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Wardoyo Akhmadi Eko, Toshihiko Matsuo, Chihiro Sakurazawa
  • Patent number: 10344636
    Abstract: To provide a press-fit, sintered valve seat having high valve coolability and wear resistance for use in a high-efficiency engine, and its production method, Cu powder having an average particle size of 45 ?m or less and purity of 99.5% or more is used to form a network-connected Cu matrix, even though a relatively large amount of hard Co-based alloy particles are added; and Fe—P alloy powder is used for densification by liquid-phase sintering.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 9, 2019
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventor: Kimiaki Hashimoto
  • Patent number: 10308558
    Abstract: A process of manufacturing cemented carbide and to a product obtained thereof, wherein hex doped WC is subjected to nitrogen before and/or during sintering.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 4, 2019
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Jose Garcia, Susanne Norgren
  • Patent number: 10232438
    Abstract: A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: March 19, 2019
    Assignee: Tenneco Inc
    Inventors: Denis Boyd Christopherson, Jr., Leslie John Farthing, Jeremy Raymond Koth
  • Patent number: 10179957
    Abstract: Embodiments disclosed herein are directed to methods and systems for X-ray imaging and/or inspection of a PCD element in a protective leaching cup, which may be placed in a tray. Embodiments include inspection of one or more characteristics between the protective leaching cup and the PCD element prior to and/or after leaching of the PCD element. Embodiments also include using X-ray imaging to assist with positioning the PCD element in the protective leaching cup. Embodiments further include inspection of one or more defects in the PCD element during processing and/or after usage by X-ray technique.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: January 15, 2019
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Tyler Scott Dunaway, Greg Carlos Topham, Renato Ventura
  • Patent number: 10173196
    Abstract: The present invention concerns a filtering medium, a method for the production thereof, the use of said filtering medium and a method for reducing the content of multiple contaminants simultaneously in fluids by means of said filtering medium, wherein said filtering medium consists of or comprises at least one of the following: a mixture (A) containing a major part of an iron-based powder and a minor part of a silver powder, an iron-silver powder alloy (B), and an iron-based porous and permeable composite containing silver (C).
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: January 8, 2019
    Assignee: HÖGANÄS AB (PUBL)
    Inventors: Avinash Gore, Bo Hu, Sydney Luk
  • Patent number: 10125819
    Abstract: Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 ?m to 500 ?m. A blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: November 13, 2018
    Assignee: NTN CORPORATION
    Inventors: Yoshinori Ito, Takahiro Gotou
  • Patent number: 10109406
    Abstract: Iron powder for dust cores that is appropriate for manufacturing a dust core with low iron loss is obtained by setting the oxygen content in the powder to be 0.05 mass % or more to 0.20 mass % or less, and in a cross-section of the powder, setting the area ratio of inclusions to the matrix phase to be 0.4% or less.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: October 23, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Takuya Takashita, Naomichi Nakamura
  • Patent number: 10037828
    Abstract: The present invention provides a dry interim storage container for spent nuclear fuel, precisely a dry interim storage container that can be filled with spent nuclear fuel wherein the storage container space is also filled with metal particles. The dry storage container for spent nuclear fuel of the present invention is filled with particles in its empty space for the spent nuclear fuel, which is advantageous in cooling efficiency and maintenance cost, compared with the conventional storage method using gas.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: July 31, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Chan Bock Lee, Jun Hwan Kim, Jin-Sik Cheon
  • Patent number: 9945034
    Abstract: A metal-based/diamond laser composite coating preparation method includes: first selecting high-hardness metal powder and diamond powder of a proper grain size and shape; then uniformly mixing the high-hardness metal powder and diamond powder via a ball-milling method; and finally preparing a composite coating on a substrate by synchronously combining laser texturing technology, laser thermal treatment technology and cold spraying technology. The thickness of the composite coating is greater than 1 mm, and the volume content of diamond in the coating is greater than 45%. A metal-based/diamond laser composite coating is also provided.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 17, 2018
    Assignees: ZHEJIANG UNIVERSITY OF TECHNOLOGY, HANGZHOU BOHUA LASER TECHNOLOGY CO., LTD
    Inventors: Jianhua Yao, Bo Li, Zhijun Chen, Qunli Zhang, Xiaodong Hu, Gang Dong, Guolong Wu, Liang Wang, Volodymyr Kovalenko
  • Patent number: 9855604
    Abstract: The invention relates to a method for producing a net-shape vane for a rotary vane pump, which vane is preferably open-pored and consists of a metal sinter material. The vane has at least one first front face and one second front face which is preferably oriented parallel to the first front face, and a first lateral surface and second lateral surface that is oriented parallel to the first lateral surface. Furthermore, the vane comprises a first contour surface and a second contour surface.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 2, 2018
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Arno Steiner, Alessandro De Nicolò, Philipp Neunhäuserer, Thomas Oberleiter
  • Patent number: 9695498
    Abstract: This invention relates to a partially carbonitriding heat treated stainless steel ferrule, having a first region with a first hardness and a second region with a second hardness, wherein the first region includes a nitrogen layer having a nitrogen concentration higher than a carbon concentration, and a carbon layer formed under the nitrogen layer and having a carbon concentration higher than a nitrogen concentration, so that the first hardness is greater than the second hardness. Thereby, partial heat treatment is effective at preventing rotational torque of the region, except for the portion to be heat treated, from increasing due to the total hardening.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: July 4, 2017
    Assignee: DK-LOK CORPORATION
    Inventors: Eun Sik Noh, Sam Rae Jung
  • Patent number: 9581056
    Abstract: Provided is a valve seat having excellent strength and wear resistance. In a valve seat using an iron-based sintered alloy, an oxide mains composed of triiron tetroxide is formed by oxidation treatment on the surface and interior of the iron-based sintered alloy, and the average area ratio of the oxide mainly composed of triiron tetroxide in a cross section of the iron-based, sintered alloy in the state prior to installation on a cylinder head is 5 to 20%. Preferably, the iron-based sintered alloy contains hard particles formed from at least one compound of carbides, silicides, nitrides, borides, and intermetallic compounds containing one or more elements selected from groups 4a to 6a of the periodic table, and the average area ratio of the hard particles in the cross section of the iron-based sintered alloy in the state prior to installation on a cylinder head is 5 to 45%.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: February 28, 2017
    Assignee: TPR CO., LTD.
    Inventors: Yoshio Koyama, Fusanobu Hanada, Shohtaroh Hara
  • Patent number: 9562814
    Abstract: Implementations and techniques for manufacturing strain sensitive sensors and/or strain resistant conduits from a metal and carbon matrix are generally disclosed.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: February 7, 2017
    Assignee: JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RESEARCH
    Inventors: Giridhar Udapi Rao Kulkarni, Boya Radha, Abhay Abhimanyu Sagade
  • Patent number: 9499410
    Abstract: Methods of making a metal oxide-graphene composite are disclosed. The method can include, for example, providing a composition including graphene oxide and at least one elemental metal dispersed in a liquid medium, and heating the composition in a sealed chamber at a temperature above a nominal boiling point of the liquid medium to form the metal oxide-graphene composite. Compositions useful for performing the process and composites obtained by the process are also disclosed.
    Type: Grant
    Filed: September 29, 2012
    Date of Patent: November 22, 2016
    Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Chongjun Zhao
  • Patent number: 9498867
    Abstract: A polycrystalline compact includes diamond grains, cubic boron nitride grains, and grains of an additional nitride, carbide, or boride. The additional nitride, carbide, or boride may be aluminum nitride, gallium nitride, silicon nitride, titanium nitride, silicon carbide, titanium carbide, titanium boride, titanium diboride, and/or aluminum boride. The diamond grains, the cubic boron nitride grains, and the grains of the additional nitride, carbide, or boride are intermixed and interbonded to form a polycrystalline material. An earth-boring tool includes a bit body and a polycrystalline diamond compact secured to the bit body. Methods of fabricating polycrystalline compacts include forming a mixture comprising diamond grains, non-cubic boron nitride grains, and a metal or semimetal; encapsulating the mixture in a container; and subjecting the encapsulated mixture to high-pressure and high-temperature conditions to form a polycrystalline material.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: November 22, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Valery N. Khabashesku, Vladimir P. Filonenko
  • Patent number: 9476258
    Abstract: A superabrasive cutter and a method of making the superabrasive cutter are disclosed. The superabrasive cutter may comprise a plurality of polycrystalline superabrasive particles and about 0.01% to about 4% by weight of the superabrasive particles of a metal or metal alloy. The metal or the metal alloy may be immiscible with a catalyst for forming the polycrystalline superabrasive particles.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 25, 2016
    Assignee: Diamond Innovations, Inc.
    Inventors: Andrew Gledhill, Christopher Long
  • Patent number: 9340857
    Abstract: A sintered alloy has an overall composition consisting of, by mass %, 13.05 to 29.62% of Cr, 6.09 to 23.70% of Ni, 0.44 to 2.96% of Si, 0.2 to 1.0% of P, 0.6 to 3.0% of C, and the balance of Fe and inevitable impurities; a metallic structure in which carbides are precipitated and uniformly dispersed in an iron alloy matrix having dispersed pores; and a density of 6.8 to 7.4 Mg/m3. The carbides include specific carbides having maximum diameter of 1 to 10 ?m and area ratio of 90% or more with respect to the total carbides.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: May 17, 2016
    Assignee: HITACHI POWDERED METALS CO., LTD.
    Inventors: Daisuke Fukae, Hideaki Kawata
  • Patent number: 9297211
    Abstract: Polycrystalline diamond constructions comprises a diamond body attached to a metallic substrate, and having an engineered metal content. The body comprises bonded together diamond crystals with a metal material disposed interstitially between the crystals. A body working surface has metal content of 2 to 8 percent that increases moving away therefrom. A transition region between the body and substrate includes metal rich and metal depleted regions having controlled metal content that provides improved thermal expansion matching/reduced residual stress. A point in the body adjacent the metal rich zone has a metal content that is at least about 3 percent by weight greater than that at a body/substrate interface. The metal depleted zone metal content increases gradually moving from the body, and has a thickness greater than 1.25 mm. Metal depleted zone metal content changes less about 4 percent per millimeter moving along the substrate.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 29, 2016
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Yuelin Shen, Youhe Zhang, Guodong Zhan
  • Patent number: 9242215
    Abstract: A polycrystalline diamond compact made from a high pressure, high temperature process is provided. The compact includes a metal carbide substrate including a binder and at least one inner layer of polycrystalline diamond disposed on the substrate. The polycrystalline diamond has a diamond phase and a metal phase forming an interconnected mutually exclusive network. The metal phase is a material different than that of the binder of the substrate to provide improved diamond sintering and final polycrystalline diamond compact properties. Prior to processing at least one coating is disposed on the substrate, and the layer of diamond particles is disposed on the at least one coating. During the high pressure, high temperature process the coating melts and fully sweeps into the diamond layer.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 26, 2016
    Assignee: Diamond Innovations, Inc.
    Inventors: Gary Flood, Abhijit Prabhakar Suryavanshi
  • Patent number: 9200670
    Abstract: With use of a fine copper-based powder, specifically a copper-based powder that contains particles each having a diameter of 45 ?m or less by 80 weight % or more, an air permeability can be significantly reduced. When this copper-based powder is used, a sintered metal can be easily formed to contain copper by 40% or less (contain iron by 60% or more) to enhance abrasion resistance, and to have an oil permeability of 1.00 g/10 min or less to increase an oil film formation rate.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: December 1, 2015
    Assignee: NTN CORPORATION
    Inventors: Fuyuki Ito, Natsuhiko Mori
  • Patent number: 9156137
    Abstract: This invention relates to powder metallurgy, more specifically, to composite material production methods, and can be used for the production of copper base binders for diamond tools used in the construction industry and stone working. The copper binder comprises the following components (wt. %): Copper (30-60), iron (20-35), cobalt (10-15), tin (0-10.5), tungsten carbide (0-20) and an alloying addition. According to the first variant the alloying addition is a nanopowder having a specific surface area 6-25 m2/g, which is present in an amount of 1-15% wt. According to the second variant the alloying addition is a nanopowder having a specific surface area of 75-150 m2/g, which is present in an amount of 0.01-5% wt. The binder possesses a high wear resistance without the essential increase in the required sintering temperature, as well as high hardness, strength and impact toughness.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 13, 2015
    Assignees: Federal State Budgetary Institution <Federal Agency for Legal Protection of Military, Special and Dual Use Intellectual Activity Results>, National University of Science and Technology “MISIS”
    Inventors: Evgeny Aleksandrovich Levashov, Vladimir Alekseevich Andreev, Viktoriya Vladimirovna Kurbatkina, Alexandr Anatol'evich Zaitsev, Dar'ya Andreevna Sidorenko, Sergei Ivanovich Rupasov
  • Patent number: 9133562
    Abstract: Provided is a method of forming a uniform graphene layer on a substrate (metal- or conductive-polymer-coated, ITO) by doping expanded graphite using various kinds of dopants (Lewis acid) to grant a positive charge thereto, dispersing the doped expanded graphite in an organic solvent using ultrasonic waves to obtain a solution in which the graphene is dispersed in the organic solvent, and electrically applying a negative voltage to the solution.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: September 15, 2015
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Young Kwan Lee, Mi Suk Cho, Su Jeong Lee
  • Patent number: 9101982
    Abstract: A method for the manufacture of a multilevel metal part, the method including the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfills the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere including hydrogen, d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99% TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: August 11, 2015
    Assignee: Metec Powder Metal AB
    Inventor: Christer Åslund
  • Patent number: 9078807
    Abstract: A tablet compression machine which can manufacture a tablet having a plurality of layers by applying secondary compression molding to a columnar primary compression molded product formed by a plurality of layers and whose two bottom faces may be bulged, comprising at least a mortar, an upper pestle, and a lower pestle, in which the mortar is substantially in a shape in which a part of a flat plate is punched by a closed curve in a direction perpendicular to a plane of the flat plate, the upper and lower pestles are in a shape fitted with an inner face of the mortar, a space formed by an inner face of the mortar, a lower face of the upper pestle, and an upper face of the lower pestle is in a shape of an intended tablet in the secondary compression molding, a dent formed by the inner face of the mortar and the upper face of the lower pestle can constitute a shape suitable for receiving the primary compression molded product, and a direction of the secondary compression molding is different from the compression
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: July 14, 2015
    Assignee: Teijin Pharma Limited
    Inventors: Masahiko Narasaki, Tomoya Akutagawa, Takamasa Maki, Minoru Uemura
  • Publication number: 20150139847
    Abstract: Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 ?m to 500 ?m. A blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 21, 2015
    Applicant: NTN CORPORATION
    Inventors: Yoshinori Ito, Takahiro Gotou
  • Patent number: 9017598
    Abstract: A metal-bonded graphite foam composite includes a ductile metal continuous phase and a dispersed phase that includes graphite foam particles.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 28, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Paul A. Menchhofer, James W. Klett
  • Patent number: 8980166
    Abstract: The invention relates to a method for producing a strand-like, particularly band-like semi-finished part for electrical contacts, wherein the semi-finished part has a top side intended for making the electrical contact, said top side made from a silver-based composite material in which one or multiple metal oxides or carbon are embedded, and has a carrier layer supporting the composite material made of silver or a silver-based alloy, said method having the following steps: Powder-metallurgic production of a block made from the silver-based composite material, encasing of the block made of the composite material with a powder made primarily of silver, compressing the block, encased by the metal powder, to condense the metal powder, sintering the compressed block, reshaping the sintered block by extrusion pressing, creating a partial strand with a top side made from composite material and a bottom side made from silver or a silver-based alloy.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: March 17, 2015
    Assignee: Doduco GmbH
    Inventors: Helmut Heinzel, Andreas Kraus, Evelyn Mahle-Moessner, Johann Wenz
  • Publication number: 20150064046
    Abstract: The present invention provides a Ti material extremely high in mechanical strength. A Ti/TiC composite, wherein no simple substance of carbon essentially exists in a TiC, and wherein 0.3 mass % or more of oxygen is solidified in the composite. A Ti/TiC composite has an upper yield point in a relation between a tensile strength and an elongation.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsuyoshi KONDOH, Shufeng LI
  • Publication number: 20150064045
    Abstract: Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).
    Type: Application
    Filed: March 13, 2013
    Publication date: March 5, 2015
    Applicant: NTN CORPORATION
    Inventors: Makoto Jinnou, Natsuhiko Mori, Yoshinori Ito
  • Publication number: 20150060268
    Abstract: A C-containing FePt-based sputtering target for forming a magnetic recording film, wherein a ratio of an X-ray diffraction peak intensity of a graphite (002) plane in a cross section perpendicular to a sputtering surface relative to an X-ray diffraction peak intensity of a graphite (002) plane in a plane horizontal to a sputtering surface is 2 or more. A magnetic recording layer is configured from a magnetic phase such as an Fe—Pt alloy and a nonmagnetic phase that separates the magnetic phase, and the sputtering target is a ferromagnetic material sputtering target in which carbon is used as a nonmagnetic phase material. When sputtered, the ferromagnetic material sputtering target is effective in preventing the generation of particles caused by an abnormal discharge originating from carbon, which is prone to aggregate.
    Type: Application
    Filed: July 10, 2013
    Publication date: March 5, 2015
    Inventor: Shini-ichi Ogino
  • Publication number: 20150037196
    Abstract: A Cu-based sintered sliding member that can be used under high-load conditions. The sliding member is age-hardened, including 5 to 30 mass % Ni, 5 to 20 mass % Sn, 0.1 to 1.2 mass % P, and the rest including Cu and unavoidable impurities. In the sliding member, an alloy phase containing higher concentrations of Ni, P and Sn than their average concentrations in the whole part of the sliding member, is allowed to be present in a grain boundary of a metallic texture, thereby achieving excellent wear resistance. Hence, without needing expensive hard particles, there can be obtained, at low cost, a Cu-based sintered sliding member usable under high-load conditions. Even more excellent wear resistance is achieved by containing 0.3 to 10 mass % of at least one solid lubricant selected from among graphite, graphite fluoride, molybdenum disulfide, tungsten disulfide, boron nitride, calcium fluoride, talc and magnesium silicate mineral powders.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 5, 2015
    Applicant: DIAMET CORPORATION
    Inventors: Yoshinari Ishii, Tsuneo Maruyama, Yoshiki Tamura
  • Publication number: 20150023830
    Abstract: The present invention relates to a method for producing diamond-metal composites including mixing diamond particles with metal-filler particles forming a diamond/metal-filler mixture, forming a green body of the diamond/metal-filler mixture, optionally green machining the green body to a work piece before or after pre-sintering by heating the green body to a temperature <500° C., infiltrating the green body or the work piece with one or more wetting elements or infiltrating the green body or the work piece with one or more wetting alloys, which infiltration step being carried out under vacuum or in an inert gas atmosphere at a pressure <200 Bar. The invention relates further to a green body, a diamond metal composite, and use of the diamond metal composite.
    Type: Application
    Filed: October 3, 2014
    Publication date: January 22, 2015
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Jie Zheng
  • Patent number: 8936665
    Abstract: The present invention relates to a method for producing diamond-metal composites comprising mixing diamond particles with metal-filler particles forming a diamond/metal-filler mixture, forming a green body of the diamond/metal-filler mixture, optionally green machining the green body to a work piece before or after pre-sintering by heating the green body to a temperature ?500° C., infiltrating the green body or the work piece with one or more wetting elements or infiltrating the green body or the work piece with one or more wetting alloys, which infiltration step being carried out under vacuum or in an inert gas atmosphere at a pressure ?200 Bar. The invention relates further to a green body, a diamond metal composite, and use of the diamond metal composite.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: January 20, 2015
    Assignee: Alfa Laval Corporate AB
    Inventor: Jie Zheng
  • Publication number: 20140361670
    Abstract: A metal matrix composite using as one of the components a precious metal is described. In one embodiment, the precious metal takes the form of gold and the metal matrix composite has a gold mass fraction in accordance with 18 k. The metal matrix composite can be formed by blending a precious metal (e.g., gold) powder and a ceramic powder, forming a mixture that is then compressed within a die having a near net shape of the metal matrix composite. The compressed mixture in the die is then heated to sinter the precious metal and ceramic powder. Other techniques for forming the precious metal matrix composite using HIP, and a diamond powder are also disclosed.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 11, 2014
    Inventors: Christopher D. Prest, Lucy E. Browning, Michael K. Pilliod, Theodore A. Waniuk
  • Publication number: 20140363326
    Abstract: A method for forming a component includes providing a first layer of a mixture of first and second powders. The method includes determining the frequency of an alternating magnetic field to induce eddy currents sufficient to bulk heat only one of the first and second powders. The alternating magnetic field is applied at the determined frequency to a portion of the first layer of the mixture using a flux concentrator. Exposure to the magnetic field changes the phase of at least a portion of the first powder to liquid. The liquid portion couples to at least some of the second powder and subsequently solidifies to provide a composite component.
    Type: Application
    Filed: February 26, 2014
    Publication date: December 11, 2014
    Inventor: Matthew J. Holcomb