公开(公告)号：US06576291B2

公开(公告)日：2003-06-10

申请号：US09732013

申请日：2000-12-08

Applicant: Moungi Bawendi ,  Nathan E. Stott

Inventor： Moungi Bawendi ,  Nathan E. Stott

IPC: B22F102

CPC classification number: C01B17/20 ,  B82Y30/00 ,  C01B19/007 ,  C01P2004/64 ,  C30B7/00 ,  C30B7/14 ,  C30B29/40 ,  C30B29/48 ,  C30B29/605 ,  H01L33/005 ,  H01L33/0083 ,  Y10S516/922 ,  Y10S977/813 ,  Y10S977/815 ,  Y10S977/818 ,  Y10S977/819 ,  Y10S977/82 ,  Y10S977/822 ,  Y10S977/823 ,  Y10S977/824 ,  Y10S977/916 ,  Y10T428/2991

Abstract: A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconducting nanocrystallites can photoluminesce and can have high emission quantum efficiencies.

公开(公告)号：US06280682B1

公开(公告)日：2001-08-28

申请号：US09399355

申请日：1999-09-20

Applicant: Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

Inventor： Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

IPC: B22F102

CPC classification number: C22C33/0278 ,  B22F3/23 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0491 ,  B22F3/04 ,  B22F9/082 ,  B22F3/1208 ,  B22F3/20 ,  B22F3/15 ,  B22F3/18 ,  B22F3/10 ,  B22F2201/05

Abstract: The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, ≦1% Cr and either ≧0.05% Zr or ZrO2 stringers extending perpendicular to an exposed surface of the heating element or ≧0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B, ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, ≦3% Cu, balance Fe.

Abstract translation: 本发明一般涉及可用作电阻加热元件的含铝铁基合金。 含铝铁基合金具有改善的室温延展性，电阻率，循环耐疲劳性，耐高温氧化性，低，高温强度和/或耐高温下垂的能力。 该合金具有完全不含奥氏体的铁素体组织，其重量％包括超过4％的Al，≤1％的Cr和> = 0.05％的Zr或ZrO2桁条，其垂直于加热元件的暴露表面延伸，或 > = 0.1％氧化物分散质颗粒。 该合金可以含有14-32％的Al，<= 2％Ti，<= 2％Mo，≤1％Zr，≤1％C，<= 0.1％B，<= 30％氧化物分散质和/或电 绝缘或导电共价陶瓷颗粒，<= 1％稀土金属，<= 1％氧，<= 3％Cu，余量为Fe。

公开(公告)号：US06179894B2

公开(公告)日：2001-01-30

申请号：US09450212

申请日：1999-11-29

Applicant: David Earl Gay

Inventor： David Earl Gay

IPC: B22F102

CPC classification number: H01F41/0246 ,  B22F1/025 ,  H01F1/08 ,  H01F1/083 ,  H01F1/22 ,  H01F1/26 ,  H01F41/0266

Abstract: A method for producing high-density powder metallurgy articles formed of hard powder materials, and particularly hard ferromagnetic materials that yield powder metallurgy magnets exhibiting improved magnetic properties as compared to powder metallurgy magnets formed of pure iron. The method generally entails the use of a powder of a material that is harder than iron, and then encapsulating each particle of the powder with a layer of iron. The powder is then compacted, by which the particles are adhered together to form a powder metallurgy article. As a result of forming a sufficiently thick encapsulating layer of iron on each powder particle, the powder can be compacted to a greater density than would be possible without the encapsulating layer of iron. If a ferromagnetic material is used, the resulting magnetic article is capable of exhibiting magnetic properties superior to a substantially identical pure iron powder metallurgy magnet.

Abstract translation: 一种由硬质粉末材料形成的高密度粉末冶金制品的方法，特别是与由纯铁形成的粉末冶金磁体相比，产生显示出改进的磁性能的粉末冶金磁体的特别硬的铁磁材料。 该方法通常需要使用比铁更硬的材料的粉末，然后用铁层包封粉末的每个颗粒。 然后将粉末压实，通过其将颗粒粘附在一起以形成粉末冶金制品。 作为在每个粉末颗粒上形成足够厚的铁包覆层的结果，可以将粉末压实到比没有铁的包封层的情况下更大的密度。 如果使用铁磁材料，则所得磁性制品能够表现出优于基本相同的纯铁粉末冶金磁体的磁性能。

公开(公告)号：US06511945B1

公开(公告)日：2003-01-28

申请号：US10046714

申请日：2002-01-17

Applicant: Maria Ramstedt

Inventor： Maria Ramstedt

IPC: B22F102

CPC classification number: B22F1/0059 ,  B22F2003/023

Abstract: The invention concerns new lubricants comprising a combination of a polyethylene oxide and an oligomer amide and an improved metallurgical powder composition comprising a major amount of an iron-based powder and a minor amount of this new lubricant. Furthermore, the invention concerns a method requiring low ejection force and low ejection energy for producing green products having high green strength. The method comprises the steps of mixing an iron-based powder and optional additives with the new lubricant and compacting the obtained powder composition.

Abstract translation: 本发明涉及包含聚环氧乙烷和低聚物酰胺的组合的新的润滑剂和包含主要量的铁基粉末和少量的这种新润滑剂的改进的冶金粉末组合物。 此外，本发明涉及一种需要低喷射力和低喷射能量的方法，用于生产具有高绿色强度的绿色产品。 该方法包括以下步骤：将铁基粉末和任选的添加剂与新的润滑剂混合并压实得到的粉末组合物。

公开(公告)号：US06416597B1

公开(公告)日：2002-07-09

申请号：US09642176

申请日：2000-08-18

Applicant: Dongkai Shangguan ,  Robert J. Gordon

Inventor： Dongkai Shangguan ,  Robert J. Gordon

IPC: B22F102

CPC classification number: B23K35/262 ,  B23K35/0244 ,  B23K35/025 ,  B23K35/3613 ,  C23C2/08 ,  C23C10/18 ,  H05K3/3484

Abstract: A solder composition and a method 10 for producing such a solder composition is provide. The solder composition is substantially “lead-free”, has a relatively long shelf life, and has a desirable melting temperature. Particularly, the solder composition contains tin and zinc with substantially all of the exposed zinc constituents or phases being covered by a relatively thin layer of tin. The formed solder composition may be operatively used with a mildly activated “no-clean” rosin flux.

Abstract translation: 提供焊料组合物和用于制造这种焊料组合物的方法10。 焊料组成基本上是“无铅”的，具有较长的保质期，并具有理想的熔融温度。 特别地，焊料组合物含有锡和锌，其中基本上所有暴露的锌组分或相被锡的较薄层覆盖。 形成的焊料组合物可以与轻度活化的“不干净”松香焊剂一起操作使用。

公开(公告)号：US06391084B1

公开(公告)日：2002-05-21

申请号：US09508820

申请日：2000-03-29

Applicant: Takayuki Ito ,  Hideo Takatori

Inventor： Takayuki Ito ,  Hideo Takatori

IPC: B22F102

CPC classification number: H01G4/0085 ,  B22F1/0088 ,  B22F9/28 ,  B22F2998/00 ,  B22F2999/00 ,  H01B1/02 ,  B22F1/0048 ,  B22F2201/03 ,  B22F2203/05

Abstract: The present invention provide metallic nickel powder in which the occurrence of delaminatoin can be prevented by providing superior sintering propreties in production processes for multilayer ceramic capacitors and by providind superior dispersion characteristics in the forming of conductive pastes. By being brought into contact with nickel chloride gas and a reducing gas at a temperature in the range of the reduction reaction, metallic nickel power is node gas and a reducing gas at a produced in which the oxigen content is 0.1 to 2.0% by weight and there is not absortion peak at wavelengths ranging from 3600 to 3700 cm−1 in infrared spectroscopy.

Abstract translation: 本发明提供金属镍粉末，其中通过在多层陶瓷电容器的制造方法中提供优异的烧结性能并且在形成导电浆料中提供优异的分散特性，可以防止脱层的发生。 通过在还原反应范围内的温度下与氯化镍气体和还原气体接触，金属镍电力是生成的氧化物含量为0.1〜2.0重量％的节点气体和还原气体， 红外光谱中波长3600〜3700cm-1处不存在绝缘峰。

公开(公告)号：US06361581B1

公开(公告)日：2002-03-26

申请号：US09741838

申请日：2000-12-22

Applicant: Tsujihiko Yasuda ,  Akiyoshi Banno ,  Tamio Ito ,  Koji Kiyoshi ,  Kunimoto Ishibayashi

Inventor： Tsujihiko Yasuda ,  Akiyoshi Banno ,  Tamio Ito ,  Koji Kiyoshi ,  Kunimoto Ishibayashi

IPC: B22F102

Abstract: A protective coat formed by thermal spraying, and having an outstanding durability against corrosion by a molten light alloy. A thermal spraying composite material used to form such a coat contains from about 30 to about 70% by weight of molybdenum boride, from about 20 to about 40% by weight of nickel or cobalt, from about 5 to about 20% by weight of chromium, and from about 5 to about 10% by weight of at least one metal boride selected from the borides of Cr, W, Zr, Ni and Nb.

公开(公告)号：US06294129B1

公开(公告)日：2001-09-25

申请号：US09482083

申请日：2000-01-13

Applicant: Mats Waldenström

Inventor： Mats Waldenström

IPC: B22F102

CPC classification number: C22C1/051 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2999/00 ,  C22C29/08 ,  B22F9/026 ,  B22F1/0014

Abstract: The present invention relates to a method of making a cemented carbide body with a bimodal grain size distribution by powder metallurgical methods including wet mixing, without milling, of WC-powders with different grain size distributions with binder metal and pressing agent, drying, pressing and sintering. The grains of the WC-powders are classified in at least two groups, a group of smaller grains and a group of larger grains. According to the method of the present invention, the grains of the group of smaller grains are precoated with a growth inhibitor with or without binder metal.

Abstract translation: 本发明涉及一种通过粉末冶金方法制造具有双峰粒度分布的硬质合金体的方法，包括：不研磨具有不同粒度分布的粘结金属和压制剂的WC粉末的湿混合，干燥，压制和 烧结。 WC粉末的颗粒分为至少两组，一组较小的颗粒和一组较大的颗粒。 根据本发明的方法，用具有或不具有粘结剂金属的生长抑制剂预涂一组较小颗粒的颗粒。

公开(公告)号：US06827557B2

公开(公告)日：2004-12-07

申请号：US10041089

申请日：2002-01-07

Applicant: Kyu-Jin Kim

Inventor： Kyu-Jin Kim

IPC: B22F102

CPC classification number: C22F1/10 ,  B22F1/0059 ,  B22F3/006 ,  B22F9/007 ,  C21D6/00 ,  C21D6/008 ,  C21D2201/03 ,  C22C45/02 ,  H01F1/15333 ,  H01F1/15375 ,  H01F41/0246

Abstract: A method of manufacturing an amorphous alloy core including the steps of mixing an amorphous alloy powder with a solution made by dissolving a polyimide/phenolic resin binder in an organic solvent, evenly coating the binder in liquid phase on the surface of the alloy powder to make a powder of composite particles, molding the power of composite particles, and performing a heating treatment thereon. This invention also discloses a method of manufacturing a nano-crystal alloy core including the steps of (a) mixing an amorphous alloy powder with a solution made by dissolving a polyimide/phenolic resin binder in an organic solvent, evenly coating the binder in the liquid phase on the surface of the alloy powder to make composite particles, molding the composite particles at room temperature, and performing a heating treatment thereon at a temperature higher than the crystallization starting temperature of the alloy; and (b) performing a heating treatment on an amorphous alloy powder at over a crystallization starting temperature to make a nano-crystal phase, mixing a solution made by solving a polyimide/phenolic resin binder in an organic solvent therewith, evenly coating the binder in liquid phase on the surface of the alloy powder to make composite particles, and molding the power of composite particles at 100 to 300° C.

Abstract translation: 一种制造非晶合金芯的方法，包括以下步骤：将非晶合金粉末与通过将聚酰亚胺/酚醛树脂粘合剂溶解在有机溶剂中制成的溶液混合，将液相中的粘合剂均匀地涂覆在合金粉末的表面上， 复合颗粒粉末，模塑复合颗粒的功能，并在其上进行加热处理。 本发明还公开了一种制造纳米晶体合金芯的方法，包括以下步骤：（a）将非晶合金粉末与通过将聚酰亚胺/酚醛树脂粘合剂溶解在有机溶剂中制成的溶液混合，将粘合剂均匀地涂布在液体中 在合金粉末的表面上形成复合颗粒，在室温下成型复合颗粒，并在高于合金的结晶起始温度的温度下对其进行加热处理; 和（b）在超过结晶起始温度的非晶合金粉末上进行加热处理以制成纳米晶相，将通过溶解聚酰亚胺/酚醛树脂粘合剂制成的溶液与有机溶剂混合，将粘合剂均匀地涂布在 液相在合金粉末表面制成复合颗粒，并将复合颗粒的功率模塑成100〜300℃。

公开(公告)号：US06533836B2

公开(公告)日：2003-03-18

申请号：US09897396

申请日：2001-07-03

Applicant: Satoshi Uenosono ,  Yukiko Ozaki

Inventor： Satoshi Uenosono ,  Yukiko Ozaki

IPC: B22F102

CPC classification number: B22F1/0077 ,  B22F1/0059 ,  B22F2001/0066 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0207 ,  B22F1/0003 ,  B22F1/0096 ,  B22F9/082 ,  B22F9/22

Abstract: An iron-based mixed powder for use in powder metallurgy and excellent in die filling property and compressibility and without segregation, includes an iron-based powder in which alloying powder(s) is adhered to the surface by a binder and, further, a free lubricant. The iron-based powder includes a mixed iron powder of atomized iron powder and reduced iron powder.