公开(公告)号：US20140170013A1

公开(公告)日：2014-06-19

申请号：US13719498

申请日：2012-12-19

Applicant: King Saud University

Inventor： Ahmed Mohammed Nabawy Nabawy ,  Khalil Abdelrazek Khalil ,  Abdulrahman M. Al-Ahmari

IPC: B22F3/105 ,  B22F1/00

CPC classification number: B22F3/105 ,  B22F2003/1053 ,  C22C1/1078 ,  C22C32/0052

Abstract: An in-situ process for making aluminum titanium carbide composite materials include the steps of mixing powdered aluminum, titanium and calcium carbonate, compacting the mixture and heating by a high frequency induction heater up to a temperature at which titanium carbide is formed at about 800° C.-1,000° C. The compact are then introduced into a tube furnace under an inert atmosphere such as argon, nitrogen, helium etc. at 1200° C. to 1350° C. for 4 to 7 hours to complete the reaction and optimize the TiC particles.

Abstract translation: 用于制造铝碳化钛复合材料的原位方法包括以下步骤：将铝粉，钛和碳酸钙混合，将混合物压实并通过高频感应加热器加热直到形成碳化钛的温度为约800° 然后将该压块在惰性气氛如氩气，氮气，氦气等的管式炉中，在1200℃至1350℃下引入4〜7小时，以完成反应并优化 TiC颗粒。

公开(公告)号：US20120228361A1

公开(公告)日：2012-09-13

申请号：US13476184

申请日：2012-05-21

Applicant: Denis CHRISTOPHERSON, JR.

Inventor： Denis CHRISTOPHERSON, JR.

IPC: B23K20/10 ,  B23K31/02 ,  B22F3/24 ,  B22F3/26 ,  B22F3/12 ,  B22F1/02

CPC classification number: B22F7/06 ,  B22F3/12 ,  B22F3/26 ,  B22F5/00 ,  B22F7/062 ,  B22F2003/242 ,  B22F2005/002 ,  B22F2302/205 ,  B22F2302/25 ,  B22F2302/253 ,  B22F2302/256 ,  B22F2302/45 ,  B23K20/106 ,  B23K20/1255 ,  B29C65/0681 ,  B29C65/08 ,  B29C66/1142 ,  B29C66/43 ,  B29C66/80 ,  B29C66/81241 ,  B29C66/81264 ,  B29C66/81429 ,  B29K2101/12 ,  B29K2105/251 ,  B29K2705/00 ,  B29K2995/007 ,  C22C1/1078 ,  Y10T428/12028 ,  B29C65/00

Abstract: An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.

Abstract translation: 由粉末金属材料制成的超声波焊接工具包括主体和从主体轴向延伸到工作端的焊接尖端。 粉末金属材料可以是基于铁的，并且与添加剂混合，例如氧化铝，碳化物，铁 - 钼，铁 - 镍，铬或部分。 焊嘴的暴露表面可以包含Fe 3 O 4氧化物。 该工具被压实成所需的形状并烧结。 主体可以包括与焊嘴分开压实的不同的第二材料，然后连接到尖端并烧结。

公开(公告)号：US20080017278A1

公开(公告)日：2008-01-24

申请号：US11579143

申请日：2005-04-27

Applicant: Masahiro Nagae ,  Tetsuo Yoshio ,  Jun Takada

Inventor： Masahiro Nagae ,  Tetsuo Yoshio ,  Jun Takada

IPC: C23C8/34

CPC classification number: C23C8/34 ,  B22F2999/00 ,  C22C1/1078 ,  C22C32/0005 ,  B22F2201/02 ,  B22F2201/04

Abstract: A refractory metal-based alloy material exhibiting high strength and high recrystallization temperature includes a worked material obtained by carburizing, while using a carbon source and coexisted oxygen, a material containing nitride particles of a solute metal dispersed and precipitated in a matrix by multi-step nitriding of a worked alloy material containing one metal selected from Mo, W, and Cr as a matrix and at least one element selected from Ti, Zr, Hf, V, Nb, and Ta as the solute metal, wherein the worked material contains carbon segregated at grain boundaries as a result of the carburizing and oxide particles converted from the nitride particles.

Abstract translation: 表现出高强度和高再结晶温度的难熔金属基合金材料包括通过渗碳获得的加工材料，使用碳源和共存氧，通过多步骤分散和沉淀在基质中的溶质金属的氮化物颗粒的材料 将含有选自Mo，W和Cr中的一种金属作为基质的加工合金材料和选自Ti，Zr，Hf，V，Nb和Ta中的至少一种元素作为溶质金属进行氮化，其中加工材料含有碳 作为由氮化物颗粒转化的渗碳和氧化物颗粒的结果在晶界分离。

公开(公告)号：US07189656B2

公开(公告)日：2007-03-13

申请号：US10503300

申请日：2002-08-15

Applicant: Sadao Sato ,  Hideo Kumita ,  Kohei Tsuda ,  Mitsuo Yamasita ,  Kunio Shiokawa ,  Kenichi Kamiura ,  Kiyoshi Sekiguchi

Inventor： Sadao Sato ,  Hideo Kumita ,  Kohei Tsuda ,  Mitsuo Yamasita ,  Kunio Shiokawa ,  Kenichi Kamiura ,  Kiyoshi Sekiguchi

IPC: H01L23/48

CPC classification number: B22F1/0088 ,  C22C1/1078 ,  H01H1/0237

Abstract: Although an Ag—CdO-based material has excellent electric properties such as deposition resistance, arc resistance and low contact resistance, which are required for an electric contact, the discharge standard provision in Japan, EC Directive on Waste from Electrical and Electronic Equipment (WEEE) and the like have been directed toward disuse of Cd, as already known.Thus, the present invention is characterized in that after an atmosphere in a pressured oxidation furnace is replaced with oxygen, the temperature of an internal-oxidative Ag alloy prepared under a condition of a cold roll rate of 50 to 95% is gradually raised from a temperature of 200° C. or less in a pressured oxygen atmosphere with an oxygen pressure of 5 to 50 kg/cm2 and internal oxidation processing is performed with an upper limit temperature of 700° C., thereby restraining an Ag-rich layer generated on an outermost surface and an oxide-flocculated layer immediately below the Ag-rich layer and uniformly and finely precipitating and dispersing a composite oxide of added elements to a deep part of an internal structure.

Abstract translation: 虽然基于Ag-CdO的材料具有电接触所需的优异的电沉积电阻，耐电弧性和低接触电阻等特性，但是在日本的排放标准规定中，EC电子电气设备废物指令（WEEE ）等已经被指示为废弃Cd，如已知的。 因此，本发明的特征在于，在用氧气代替加压氧化炉中的气氛后，在冷轧率为50〜95％的条件下制备的内部氧化性Ag合金的温度从 在氧气压力为5〜50kg / cm 2的加压氧气氛中温度为200℃以下，在700℃的上限温度下进行内部氧化处理，由此 抑制在Ag富层的正下方的最外表面和氧化絮凝层上产生的富Ag层，并均匀且精细地将添加元素的复合氧化物沉淀并分散到内部结构的深部。

公开(公告)号：US07105235B2

公开(公告)日：2006-09-12

申请号：US11150258

申请日：2005-06-13

Applicant: Jason Sin Hin Lo ,  Nicola Maffei

Inventor： Jason Sin Hin Lo ,  Nicola Maffei

IPC: C22C49/14 ,  C22C49/06 ,  C22C29/12 ,  B32B33/00

CPC classification number: C04B41/009 ,  B22F2998/00 ,  C04B30/00 ,  C04B41/5155 ,  C04B41/88 ,  C04B2111/00922 ,  C22C29/12 ,  C22C32/0089 ,  C22C2001/1073 ,  Y10T428/12486 ,  Y10T428/12611 ,  Y10T428/12736 ,  C04B41/4521 ,  C04B41/4523 ,  C04B35/495 ,  C04B14/30 ,  C04B14/303 ,  C04B40/02 ,  C04B41/45 ,  C04B41/51 ,  C04B38/00 ,  C22C1/1078

Abstract: A reinforced composite material, having isotropic thermal expansion properties and a low coefficient of thermal expansion over at least the temperature range of from about 0° C. to at least about 150° C., which composite material comprises in combination a first continuous phase comprising a three dimensional preformed bonded powder material reinforcement, including a bonding agent, and in which the bonded powder material is chosen from the group consisting of zirconium tungstate, hafnium tungstate, zirconium hafnium tungstate, and mixtures of zirconium tungstate and hafnium tungstate, and a second continuous phase matrix material chosen from the group consisting of aluminium, aluminium alloys in which aluminium is the major component, magnesium, magnesium alloys in which magnesium is the major component, titanium, titanium alloys in which titanium is the major component, engineering thermoplastics and engineering thermoplastics containing a conventional solid filler.

Abstract translation: 一种增强复合材料，其在各种各向同性热膨胀性能和至少在约0℃至至少约150℃的温度范围内的低热膨胀系数，该复合材料组合包括第一连续相，包括 包括粘合剂的三维预成型粘合粉末材料增强材料，其中粘合的粉末材料选自钨酸锆，钨酸铪锆，钨酸锆铪和钨酸锆与钨酸铪的混合物，第二 选自铝，其中以铝为主要成分的铝合金，镁为主要成分的镁，镁合金，钛，钛为主要成分的钛合金，工程热塑性塑料和工程 含有常规固体填料的热塑性塑料。

公开(公告)号：US20050028896A1

公开(公告)日：2005-02-10

申请号：US10913863

申请日：2004-08-06

Applicant: Yuzo Uemura ,  Koshiro Ueda ,  Noriaki Murahashi ,  Shinji Yamanashi ,  Michio Taki ,  Hiroyasu Endo

Inventor： Yuzo Uemura ,  Koshiro Ueda ,  Noriaki Murahashi ,  Shinji Yamanashi ,  Michio Taki ,  Hiroyasu Endo

IPC: C22C1/10 ,  C22C32/00 ,  H01H1/0237 ,  C22C5/06 ,  H01H1/02

CPC classification number: C22C32/0021 ,  B22F2998/10 ,  C22C1/1078 ,  H01H1/0237 ,  H01H1/02372 ,  C22C1/1094

Abstract: Disclosed is an electrical contact having high electrical conductivity for a compact electromagnetic relay including an internally oxidized silver-oxide material which is prepared by subjecting an Ag alloy having a composition consisting essentially of, by weight, 5.1 to 9% Sn, 1.5 to 5% In, and 0.005 to 0.06% Bi, with the balance being Ag and unavoidable impurities, to an internal oxidation treatment and then subjecting to a heat treatment for diffusion, aggregation, and growth of precipitated oxides, wherein the internally oxidized silver-oxide material has a metallographic structure such that coarse grains of composite oxides are dispersed and distributed in an Ag matrix, the coarse grains of composite oxides being formed as a result of coarsening of ultra-fine grains of Sn-based oxides and ultra-fine grains of In-based oxides, which are precipitated by the internal oxidation treatment, by the heat treatment for diffusion, aggregation, and growth of the precipitated oxides.

Abstract translation: 公开了一种用于小型电磁继电器的电接触，其包括内部氧化的氧化银材料，其通过使具有基本上由5.1至9％的Sn组成的Ag合金，1.5至5％ In和0.005〜0.06％的Bi，余量为Ag和不可避免的杂质，进行内部氧化处理，然后进行热处理，使沉淀氧化物扩散，聚集和生长，其中内部氧化的氧化银材料具有 使复合氧化物的粗晶分散并分布在Ag基体中的金相结构，复合氧化物的粗晶由于Sn系氧化物超细晶粒和In-Si系超细晶粒的粗化而形成， 通过内部氧化处理沉淀的氧化物，通过热处理使沉淀的氧化物扩散，聚集和生长。

公开(公告)号：US20030190487A1

公开(公告)日：2003-10-09

申请号：US10119268

申请日：2002-04-09

Inventor： Deliang Zhang ,  Wei Gao ,  Danyang Ying ,  Zhengwei Li ,  Zhihong Cai ,  Jing Liang

IPC: B32B015/04

CPC classification number: C04B35/62615 ,  B22F2998/00 ,  C04B35/117 ,  C04B2235/3232 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/9684 ,  C22C1/053 ,  C22C1/1078 ,  C23C4/18 ,  C23C8/02 ,  Y10T428/12097 ,  C22C29/00 ,  C22C32/00

Abstract: A titanium based composite which includes a Ti(Al,O) base matrix, discrete ceramic particles, and an oxide layer on the surface of the composite. The discrete ceramic particles are integrally associated with the Ti(Al,O) base matrix and the oxide layer, so that at a temperature of above about 600null C., the composite is substantially resistant to oxidation and spallation.

Abstract translation: 钛基复合材料，其包含Ti（Al，O）基体，离散陶瓷颗粒和复合材料表面上的氧化物层。 离散的陶瓷颗粒与Ti（Al，O）基质和氧化物层一体地结合，使得在高于约600℃的温度下，复合材料基本上抗氧化和剥落。

公开(公告)号：US5590388A

公开(公告)日：1996-12-31

申请号：US299306

申请日：1994-09-01

Applicant: Mitsuo Kuwabara ,  Kiyoshi Ikegami ,  Teruaki Yoshida ,  Koji Takahashi ,  Tamotsu Harada ,  Takeshi Komiyama ,  Fumio Hirai ,  Masamichi Hayashi

Inventor： Mitsuo Kuwabara ,  Kiyoshi Ikegami ,  Teruaki Yoshida ,  Koji Takahashi ,  Tamotsu Harada ,  Takeshi Komiyama ,  Fumio Hirai ,  Masamichi Hayashi

IPC: B22F3/22 ,  B23K35/02 ,  B23K35/22 ,  B23K35/40 ,  C04B35/622 ,  C22C1/04 ,  C22C1/10 ,  C22C32/00 ,  B22F3/12

CPC classification number: B22F3/225 ,  B23K35/222 ,  B23K35/402 ,  C04B35/622 ,  C22C1/0425 ,  C22C1/1078 ,  C22C32/00 ,  B22F2998/00 ,  B23K35/0205

Abstract: A method of producing a molded ceramic article comprises the first step mixing powdery raw materials and a liquid additive, thereby obtaining a mixed raw material, the second step press-molding the mixed raw material obtained in the first step in a hydrostatically applied condition of pressure, thereby removing an excess of the liquid additive to obtain a preform, and the third step calcining the preform obtained in the second step to obtain a molded ceramic article. The molded ceramic article comprises, as a principal component, copper and, as essential components, Cr and Ni within composition ranges of 0.1.ltoreq.Cr

Abstract translation: 制造模制陶瓷制品的方法包括：将粉末原料和液体添加剂混合的第一步骤，从而获得混合原料，第二步骤是将第一步骤中获得的混合原料在压力下的压力下施加压力 从而除去过量的液体添加剂以获得预成型体，并且第三步骤煅烧在第二步骤中获得的预成型体以获得模制的陶瓷制品。 模制的陶瓷制品以0.1重量％的组成范围内包含铜和作为必要组分的Cr和Ni作为主要组分。 ％和0.1

公开(公告)号：US5032174A

公开(公告)日：1991-07-16

申请号：US426863

申请日：1989-10-26

Applicant: Carl S. G. Ekemar ,  Rolf G. Oskarsson

Inventor： Carl S. G. Ekemar ,  Rolf G. Oskarsson

IPC: B22F9/02 ,  B22F1/00 ,  B22F9/04 ,  C22C1/05 ,  C22C1/10 ,  C22C29/00 ,  C22C32/00 ,  C23C8/24 ,  C23C8/32

CPC classification number: B22F9/04 ,  C22C1/051 ,  C22C1/1078 ,  C22C32/0026 ,  B22F2009/041

Abstract: The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles.The preparation is performed in an economical way because the procedure starts from conventional melt metallurgical raw materials. A pre-alloy consisting of hard principle forming and binder phase forming elements is subjected to a heat treatment such as nitriding and carburizing after being crushed. The final product is particles composed by hard principle phases and binder metal phases formed "in situ" in an effective binding.

公开(公告)号：USRE29986E

公开(公告)日：1979-05-08

申请号：US863543

申请日：1977-12-23

Applicant: Terrence A. Davies ,  David J. Pedder

Inventor： Terrence A. Davies ,  David J. Pedder

IPC: C22C1/10 ,  C22C32/00 ,  H01B1/02 ,  H01H1/0237

CPC classification number: C22C1/1078 ,  C22C32/0021 ,  H01B1/02 ,  H01H1/02374

Abstract: A material for use in making electrical contacts is produced in a powder form suitable for later processing into electrical contacts by standard metallurgical techniques. The material consists of a first metal, such as silver, and the oxide of a second metal, such as cadmium, added to the first metal in a proportion up to the limits of solubility of the second metal in the first metal. An oxide of a third metal having a low electronic work function level, such as lithium oxide, is added and uniformly distributed on the surfaces of the powder particles by precipitation. A fourth metal, such as tellurium, that is insoluble in the first metal is also added to provide selected characteristics.