公开(公告)号：US11619266B2

公开(公告)日：2023-04-04

申请号：US16282727

申请日：2019-02-22

申请人： Roller Bearing Company of America, Inc.

发明人： Frank C. Adams ,  Mark Heuberger ,  Charles E. Smith ,  Patrick S. Boyan ,  Ernest K. Robinson

IPC分类号： F16C33/66 ,  C22C14/00 ,  C22C30/00 ,  F16C19/04 ,  F16C23/04 ,  F16C33/10 ,  C22C32/00 ,  B22F3/10 ,  C22C1/05

摘要： A composite material having an alloy matrix including titanium, aluminum, niobium, manganese, boron, and carbon is disclosed. The composite material includes, by atomic percentage, 40.0% to 50.0% Al, 1.0% to 8.0% Nb, 0.5% to 2.0% Mn, 0.1% to 2.0% B, and 0.01% to 0.2% C. The composite material is doped with a solid lubricant such as MoS2, ZnO, CuO, hexagonal boron nitride (hBN), WS2, AgTaO3, CuTaO3, CuTa2O6, or combinations thereof. Components composed of the composite material exhibit increased ductility at room temperature and reduced fracture tendency, resulting in improved durability.

公开(公告)号：US11560311B2

公开(公告)日：2023-01-24

申请号：US17338282

申请日：2021-06-03

申请人： LytEn, Inc.

发明人： Daniel Cook ,  Hossein-Ali Ghezelbash ,  Bryce H. Anzelmo ,  David Tanner ,  Shreeyukta Singh

IPC分类号： C01B32/152 ,  C08J5/00 ,  C22C1/05 ,  B82Y40/00 ,  B82Y30/00 ,  G01N21/65 ,  C01B32/158 ,  C01B32/20 ,  C01B32/225 ,  C01B32/184 ,  B22F1/054 ,  C01B32/182

摘要： A nanoparticle or agglomerate which contains connected multi-walled spherical fullerenes coated in layers of graphite. In different embodiments, the nanoparticles and agglomerates have different combinations of: a high mass fraction compared to other carbon allotropes present, a low concentration of defects, a low concentration of elemental impurities, a high Brunauer, Emmett and Teller (BET) specific surface area, and/or a high electrical conductivity. Methods are provided to produce the nanoparticles and agglomerates at a high production rate without using catalysts.

公开(公告)号：US11548065B2

公开(公告)日：2023-01-10

申请号：US17369492

申请日：2021-07-07

申请人： Innerco Sp. Z O.O.

发明人： Ewa Olejnik ,  Anna Jesiolowska

IPC分类号： B22D19/02 ,  B22F7/06 ,  C22C1/05 ,  C22C1/02 ,  C22C38/18 ,  C22C37/08 ,  C22C37/10 ,  C22C38/02 ,  C22C38/04 ,  B22F1/05

摘要： A powder composition is used for the fabrication of casting inserts, designed to produce local composite zones resistant to abrasive wear. The composite zones are reinforced with carbides and borides or with mixtures thereof formed in situ in castings. The powder includes powder reactants of the formation of carbides and/or borides selected from the group of TiC, WC, ZrC, NbC, TaC, TiB2, ZrB2, or mixtures thereof. The carbides and/or borides forming after crystallization particles reinforces the composite zones in castings. The powder composition further includes moderator powders in the form of a mixture of metal powders, which after crystallization form matrix of the composite zone in casting. A casting insert is disclosed for the fabrication in casting of local composite zones resistant to abrasive wear. A method for the fabrication of local composite zones in castings uses for this purpose the reaction of the self-propagating high temperature synthesis (SHS).

公开(公告)号：US11534829B2

公开(公告)日：2022-12-27

申请号：US16603520

申请日：2017-04-07

申请人： NIPPON STEEL CORPORATION ,  FINE SINTER CO., LTD.

发明人： Manabu Kubota ,  Naomitsu Mizui ,  Fumio Ishimoto ,  Kazutaka Asabe ,  Osamu Kanda ,  Satoru Nakano ,  Takeshi Nakano ,  Kazumichi Kawasaki ,  Isao Shimazoe

IPC分类号： B22F7/00 ,  C22C1/04 ,  C22C1/05 ,  F16D69/02 ,  B22F1/10

摘要： A sintered friction material is formed by pressure sintering mixed powder at 800° C. or above, the mixed powder consisting of, in mass %, Cu and/or Cu alloy: 40.0 to 80.0%, Ni: 0% or more and less than 5.0%, Sn: 0 to 10.0%, Zn: 0 to 10.0%, VC: 0.5 to 5.0%, Fe and/or Fe alloy: 2.0 to 40.0%, lubricant: 5.0 to 30.0%, metal oxide and/or metal nitride: 1.5 to 30.0%, and the balance being impurity.

公开(公告)号：US20220364209A1

公开(公告)日：2022-11-17

申请号：US17772834

申请日：2020-11-25

申请人： Element Six (UK) Limited

发明人： Santonu GHOSH ,  Teresa RODRIGUEZ SUAREZ ,  Stig Åke ANDERSIN

IPC分类号： C22C26/00 ,  C22C27/04 ,  C22C1/05 ,  B22F3/16

摘要： This disclosure relates a polycrystalline cubic boron nitride, PCBN, composite material for use in friction stir welding. The PCBN composite material comprises tungsten (W), rhenium (Re) and aluminium (Al) in the binder matrix material.

公开(公告)号：US11459639B2

公开(公告)日：2022-10-04

申请号：US16750851

申请日：2020-01-23

申请人： Mueller Industries, Inc.

发明人： Christopher Todd Kidder ,  Barry George Munce ,  Steffen Sigloch

IPC分类号： C22C1/04 ,  B22F3/10 ,  C22C1/05 ,  C22C9/04 ,  B22F9/08 ,  B22F1/145

摘要： Graphite-containing brass alloy billets having less than 0.25 wt. % lead and a method of manufacturing relating thereto are provided. The method includes forming a brass powder and mixing the brass powder with graphite and one or more binders. The brass powder contains copper and zinc and may be formed using water atomization. The brass-powder mixture is compacted to form an initial billet. The initial billet may be subjected to one or more heating treatments. A first heating treatment may be used to remove the one or more binders. An optional second heating treatment may be used to deoxidize the binder-free billet. An optional third heating treatment that includes applying a pressure may be used to densify the binder-free billet. A third heating treatment may sinter the compact to form the workable graphite-containing brass alloy billet.

公开(公告)号：US20220307109A1

公开(公告)日：2022-09-29

申请号：US17805551

申请日：2022-06-06

申请人： Millennitek, LLC

发明人： Andrew M. Spradling ,  Lawrence W. Townsend ,  Kevin J. Hughes

IPC分类号： C22C1/05 ,  C01B35/04 ,  C22C29/14

摘要： A method of forming cemented tungsten tetraboride, by combining tungsten and boron in a molar ratio of from about 1:6 to about 1:12, respectively, and firing the combined tungsten and boron in a hexagonal boron nitride crucible at a temperature of from about 1600 C to about 2000 C, to form tungsten tetraboride, milling the tungsten tetraboride to a powder, adding a metal binder to the tungsten tetraboride powder to produce a metal-tungsten tetraboride mixture, compressing the metal-tungsten tetraboride mixture, and sintering the compressed metal-tungsten tetraboride mixture to form cemented tungsten tetraboride.

公开(公告)号：US11351609B2

公开(公告)日：2022-06-07

申请号：US16947015

申请日：2020-07-15

申请人： Millennitek, LLC

发明人： Andrew M. Spradling ,  Lawrence W. Townsend

IPC分类号： B22F9/04 ,  B22F3/12 ,  C01B35/04 ,  C22C29/14 ,  C22C1/05 ,  G21F1/06 ,  G21F1/08 ,  C04B35/58 ,  G21C11/02

摘要： A method of forming tungsten tetraboride, by combining tungsten and boron in a molar ratio of from about 1:6 to about 1:12, respectively, and firing the combined tungsten and boron in the hexagonal boron nitride crucible at a temperature of from about 1600 C to about 2000 C, to form tungsten tetraboride.

公开(公告)号：US11319618B2

公开(公告)日：2022-05-03

申请号：US16975715

申请日：2019-12-24

申请人： CHONGQING UNIVERSITY OF ARTS AND SCIENCES

发明人： Ying Deng ,  Shan Jiang ,  Yanhua Zhang ,  Taibin Wu ,  Qiaowang Chen ,  Hui Yan ,  Ling Deng ,  Hui Chen

IPC分类号： C22C29/04 ,  B22F7/00 ,  B22F9/04 ,  C22C1/05 ,  C22C29/00

摘要： The disclosure relates to a method for preparing Ti(C,N)-based superhard metal composite materials, with Ti(C,N) powder and (W,Mo,Ta)(C,N) powder as main raw materials and Co powder as binding phase for preparation, thereby obtaining a material in which a microstructure is a double-core rim structure that has both a black core rim and a white core rim. The material has a complete and evenly distributed double-core rim structure. In the condition that the ensured hardness of the material is not reduced and even slightly increased, the toughness of the material is significantly improved, wherein the fracture toughness of the material is in the range of 11.3 to 12.5 MPa·m1/2.

公开(公告)号：US11315782B2

公开(公告)日：2022-04-26

申请号：US16616723

申请日：2018-04-26

申请人： PLANSEE SE ,  OSRAM GMBH

发明人： Hannes Traxler ,  Ingmar Wesemann ,  Wolfram Knabl ,  Alexander Tautermann ,  Maria Nilius

IPC分类号： H01J61/073 ,  C22C1/05 ,  H01J9/04

摘要： A cathode material for use in a high-pressure discharge lamp contains a matrix based on tungsten having a tungsten content of greater than or equal to 95% by weight, tungsten carbide, and oxides and/or predominantly oxidic phases of one or more emitter elements from the group of rare earth metals, Hf, and Zr. The cathode material additionally contains predominantly carbidic phases of the one or more emitter elements from the group of rare earth metals, Hf, and Zr. A high-pressure discharge lamp would contain such a cathode composed of the above cathode material.