公开(公告)号：US06702869B2

公开(公告)日：2004-03-09

申请号：US10061497

申请日：2002-02-01

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： C22C2916

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0088 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  C22C1/045

摘要： A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.

公开(公告)号：US06814775B2

公开(公告)日：2004-11-09

申请号：US10437516

申请日：2003-05-14

申请人： Robert Dean Scurlock ,  Stephen Lee Dole

发明人： Robert Dean Scurlock ,  Stephen Lee Dole

IPC分类号： C22C2916

CPC分类号： C04B35/583 ,  B22F2998/00 ,  B23B27/148 ,  C04B35/5831 ,  C04B35/6261 ,  C04B2235/3217 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3817 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/3847 ,  C04B2235/386 ,  C04B2235/3865 ,  C04B2235/3886 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/5436 ,  C04B2235/72 ,  C04B2235/762 ,  C04B2235/786 ,  C04B2235/80 ,  C22C26/00 ,  C22C29/16 ,  C22C2026/005 ,  C22C2026/006

摘要： A sintered cubic boron nitride (cBN) compact for use in a tool is composed of between about 60 and 80 vol-% cBN having a volumetric mean particle size of between about 3 to 6 &mgr;m and between about 40 and 20 vol-% of a ceramic binder phase. The ceramic binder is composed of between about 20 and 60 vol-% of one or more of a carbide, nitride, or boride of a Group IVB or VIB metal, and between about 40 and 80 vol-% of one or more of carbides, nitrides, borides, or oxides of aluminum. The cBN compact additionally contains between about 3 and 15 wt-% tungsten. The cBN compacts are especially useful in machining iron and like chemically reactive parts, especially where such parts are powder metal parts.

公开(公告)号：US06319485B1

公开(公告)日：2001-11-20

申请号：US09232710

申请日：1999-01-19

申请人： Akira Nagatomi ,  Fumikazu Kanamaru ,  Shinichi Kikkawa

发明人： Akira Nagatomi ,  Fumikazu Kanamaru ,  Shinichi Kikkawa

IPC分类号： C22C2916

CPC分类号： H01F1/20 ,  C01B21/0622 ,  C01P2002/72 ,  C01P2006/42

摘要： A magnetic material made up of an assembly of particles substantially consisting of an &agr;″-Fe16N2 crystal having a body-centered tetragonal system (bct). The magnetic material has a high saturated magnetic flux density and is directly synthesized by reacting fine particles of &agr;-Fe and a nitrogen-containing gas at a temperature of 200° C. or lower. By the synthesis of this invention, &agr;″-Fe16N2, which is a metastable compound conventionally deposited accompanied with phase transformation of crystallization from a martensite phase of &agr;′-Fe(N), is obtained as an isolated bulk substance in a single phase.

摘要翻译： 由基本上由具有体心四方晶系（bct）的α“-Fe 16 N 2晶体组成的颗粒的组合构成的磁性材料。 磁性材料具有高的饱和磁通密度，并且通过在200℃或更低的温度下使α-Fe的细颗粒与含氮气体反应直接合成。 通过本发明的合成，得到作为常规沉积的亚稳态化合物的α“-Fe 16 N 2，其伴随着从α'-Fe（N）的马氏体相的结晶相转变，作为单相中的分离的本体物质 。