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1. 发明授权

US5914286A Silicon nitride cutting tool material 失效
标题翻译：氮化硅切削刀具材料
公开(公告)号：US5914286A
公开(公告)日：1999-06-22
申请号：US880297
申请日：1997-06-24
申请人： Marianne Collin , Magnus Ekelund
发明人： Marianne Collin , Magnus Ekelund
IPC分类号： B23B27/14 , C04B35/584 , C04B35/593 , C04B41/52 , C04B41/87 , C04B41/89 , C04B35/596
CPC分类号： C04B41/009 , C04B35/593 , C04B35/5935 , C04B41/52 , C04B41/89 , Y10T407/27
摘要： There is disclosed a silicon nitride based cutting tool insert for chipforming machining of cast iron material having improved mechanical, chemical and wear properties. This is obtained by addition of one or more transition metal oxides which act as a sintering aid together with alumina and yttria and also promote the growth of elongated grains of beta silicon nitride during the sintering. Preferably, the inserts are provided with a wear resistant coating as known in the art. The ceramic cutting tool material according to the present invention comprises a beta silicon nitride matrix with total amount of 0.5-10 weight %, preferably 0.5-6 weight %, of an intergranular phase and 0.05-3 weight % of at least one secondary crystalline phase of a transition metal carbide, nitride, carbonitride and/or silicide present as spherical particles with a size of 0.1-2 .mu.m, preferably submicron (0.01-1 .mu.m). The transition metal is preferably niobium and/or tantalum. The material has less than 1 volume %, preferably less than 0.3 volume %, porosity. The beta silicon nitride grains are to at least 10%, preferably more than 20%, elongated with an aspect ratio greater than 3, preferably greater than 5. The grain diameter of the beta silicon nitride grains is in the range of 0.2-10 .mu.m, preferably 0.2-5 .mu.m, and most preferably 0.2-3 .mu.m.
摘要翻译：公开了一种用于具有改进的机械，化学和耐磨性能的铸铁材料的芯片成型加工的氮化硅基切削工具刀片。这是通过加入一种或多种过渡金属氧化物而获得的，这些氧化物与氧化铝和氧化钇一起用作烧结助剂，并且还促进烧结期间β氮化硅细长晶粒的生长。优选地，插入件具有本领域已知的耐磨涂层。根据本发明的陶瓷切削工具材料包括总量为0.5-10重量％，优选0.5-6重量％的晶间相和0.05-3重量％的至少一个第二结晶相的β氮化硅基体过渡金属碳化物，氮化物，碳氮化物和/或硅化物作为球形颗粒存在，其尺寸为0.1-2μm，优选亚微米（0.01-1μm）。过渡金属优选为铌和/或钽。该材料的孔隙率小于1体积％，优选小于0.3体积％。 β氮化硅颗粒至少10％，优选大于20％，纵横比大于3，优选大于5。β氮化硅颗粒的晶粒直径在0.2-10μm的范围内 m，优选0.2-5μm，最优选0.2-3μm。

2. 发明授权

US6066582A Process for making silicon nitride cutting tool material 有权
标题翻译：制造氮化硅切削刀具材料的工艺
公开(公告)号：US6066582A
公开(公告)日：2000-05-23
申请号：US232008
申请日：1999-01-14
申请人： Marianne Collin , Magnus Ekelund
发明人： Marianne Collin , Magnus Ekelund
IPC分类号： B23B27/14 , C04B35/584 , C04B35/593 , C04B41/52 , C04B41/87 , C04B41/89 , C04B35/594 , C04B35/596
CPC分类号： C04B41/009 , C04B35/593 , C04B35/5935 , C04B41/52 , C04B41/89 , Y10T407/27
摘要： The ceramic cutting tool material according to the present invention comprises a beta silicon nitride matrix with total amount of 0.5-10 weight %, preferably 0.5-6 weight %, of an intergranular phase and 0.05-3 weight % of at least one secondary crystalline phase of a transition metal carbide, nitride, carbonitride and/or silicide present as spherical particles with a size of 0.1-2 .mu.m, preferably submicron (0.01-1 .mu.m). The transition metal is preferably niobium and/or tantalum. The material has less than 1 volume %, preferably less than 0.3 volume %, porosity. The beta silicon nitride grains are to at least 10%, preferably more than 20%, elongated with an aspect ratio greater than 3, preferably greater than 5. The grain diameter of the beta silicon nitride grains is in the range of 0.2-10 .mu.m, preferably 0.2-5 .mu.m, and most preferably 0.2-3 .mu.m.
摘要翻译：根据本发明的陶瓷切削工具材料包括总量为0.5-10重量％，优选0.5-6重量％的晶间相和0.05-3重量％的至少一个第二结晶相的β氮化硅基体过渡金属碳化物，氮化物，碳氮化物和/或硅化物作为球形颗粒存在，其尺寸为0.1-2μm，优选亚微米（0.01-1μm）。过渡金属优选为铌和/或钽。该材料的孔隙率小于1体积％，优选小于0.3体积％。 β氮化硅颗粒至少10％，优选大于20％，纵横比大于3，优选大于5。β氮化硅颗粒的晶粒直径在0.2-10μm的范围内 m，优选0.2-5μm，最优选0.2-3μm。

3. 发明授权

US06110275A Manufacture of titanium carbide, nitride and carbonitride whiskers 失效
标题翻译：制造碳化钛，氮化物和碳氮化物晶须
公开(公告)号：US06110275A
公开(公告)日：2000-08-29
申请号：US772102
申请日：1996-12-20
申请人： Mats Nygren , Mats Johnsson , Niklas Ahlen , Magnus Ekelund
发明人： Mats Nygren , Mats Johnsson , Niklas Ahlen , Magnus Ekelund
IPC分类号： C30B25/00 , C30B29/62
CPC分类号： C30B25/005 , C30B29/36 , C30B29/38
摘要： There is disclosed a method of producing, in large volume and at low cost, titanium carbide, nitride and carbonitride whiskers, with preferably submicron diameters, to be used as reinforcing material. The whiskers are suitable for use as a reinforcement material in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Titanium oxide, hydroxide or alkali compounds thereof are mixed with a carbon source with a volatile part which volatiles at temperatures exceeding 500.degree. C. and in an amount to satisfy the stoichiometric requirements of the carbide or nitride. A halogenide salt is used as a volatilization agent for titanium as well as a catalyst able to dissolve Ti plus C and/or N, such as Ni or Co. The reactant powders are blended in some typical manner, e.g., by using a high speed blender so as to intimately mix them. Finally, the mixed starting material is subjected to nitriding, carbonizing or carbonitriding heat treatments in order to produce the desired whiskers.
摘要翻译：公开了以大量且低成本生产优选亚微米直径的碳化钛，氮化物和碳氮化物晶须作为增强材料的方法。晶须适用于各种材料中的增强材料，包括金属，金属间化合物，塑料，陶瓷和金属粘结的硬质材料。氧化钛，氢氧化物或碱性化合物与碳源与挥发性物质混合，挥发物在超过500℃的温度下挥发，并且其量足以满足碳化物或氮化物的化学计量要求。使用卤化物盐作为钛的挥发剂以及能够溶解Ti和C和/或N的催化剂，例如Ni或Co。将反应物粉末以一些典型的方式混合，例如通过使用高速搅拌机，以便将它们紧密混合。最后，将混合起始材料进行氮化，碳化或碳氮共渗处理，以产生所需的晶须。

4. 发明授权

US5851285A Manufacture of transition metal carbide, nitride, and carbonitride whiskers containing two or more transition metals 失效
标题翻译：制造含有两种或更多种过渡金属的过渡金属碳化物，氮化物和碳氮化物晶须
公开(公告)号：US5851285A
公开(公告)日：1998-12-22
申请号：US770849
申请日：1996-12-20
申请人： Mats Johnsson , Niklas Ahlen , Mats Nygren , Magnus Ekelund , Gunnar Brandt
发明人： Mats Johnsson , Niklas Ahlen , Mats Nygren , Magnus Ekelund , Gunnar Brandt
IPC分类号： C30B29/62 , C30B25/00 , C30B21/06
CPC分类号： C30B25/005 , C30B29/36 , C30B29/38 , Y10S977/734 , Y10S977/762 , Y10S977/776 , Y10S977/90
摘要： There is disclosed a method of producing whiskers in large volumes and at low cost to be used as reinforcing material. The whiskers are solid solutions between two or more transition metal carbides, nitrides and carbonitrides, (Me.sub.1-X-Y.sub.Me'.sub.X+Y)C.sub.1-Z N.sub.Z, having preferably submicron diameters, where Me' is one or more transition metals other than Me. The whiskers are suitable for use as a reinforcement material in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Transition metal oxides, hydroxides or alkali compounds thereof are mixed with carbon powder. The carbon source is added in an amount to satisfy the stoichiometric requirements of the carbide or nitride. A halogenide salt is used as a volatilization agent for the transition metals and a catalyst such as Ni or Co that is able to dissolve transition metals plus C and/or N. The reactant powders are blended so as to intimately mix them. Finally, the mixed starting material is subjected to nitriding, carbonizing or carbonitriding heat treatments in order to produce the desired whiskers.
摘要翻译：公开了一种以大量且低成本生产晶须以用作增强材料的方法。晶须是两个或更多个过渡金属碳化物，氮化物和碳氮化物之间的固溶体（Me1-X-YMe'X + Y）C1-ZNZ，优选亚微米直径，其中Me'是除Me以外的一种或多种过渡金属。晶须适用于各种材料中的增强材料，包括金属，金属间化合物，塑料，陶瓷和金属粘结的硬质材料。过渡金属氧化物，氢氧化物或其碱金属化合物与碳粉混合。碳源以满足碳化物或氮化物的化学计量要求的量加入。卤化物盐用作过渡金属的挥发剂和能够溶解过渡金属加上C和/或N的催化剂如Ni或Co。将反应物粉末混合以便将它们紧密混合。最后，将混合起始材料进行氮化，碳化或碳氮共渗处理，以产生所需的晶须。

5. 发明授权

US5948715A Whisker-reinforced ceramic cutting tool material 失效
标题翻译：晶须加固陶瓷刀具材料
公开(公告)号：US5948715A
公开(公告)日：1999-09-07
申请号：US97666
申请日：1998-06-16
申请人： Gunnar Brandt , Magnus Ekelund
发明人： Gunnar Brandt , Magnus Ekelund
IPC分类号： B23B27/14 , C04B35/111 , C04B35/80 , C09K3/14 , C04B35/81
CPC分类号： C04B35/111 , C04B35/803 , C09K3/1436 , Y10T407/27
摘要： Oxide-based ceramic cutting inserts for chipforming machining of steel, comprising a ceramic oxide-based matrix of alumina and less than 10% by volume zirconia and 5-40% by volume of homogeneously dispersed whiskers based upon (Ta.sub.x Hf.sub.y Ti.sub.1-x-y)C.sub.1-z N.sub.z where 0 0.25 and 0.ltoreq.z
摘要翻译：基于氧化物的陶瓷切削刀片，用于钢的切削加工，其包括基于陶瓷氧化物的氧化铝基体和小于10体积％的氧化锆和基于（TaxHfyTi1-xy）C1-zNz的均匀分散的胡须的5-40体积％其中0 0.25和0

6. 发明授权

US5853477A Manufacture of transition metal carbide, nitride and carbonitride whiskers 失效
标题翻译：过渡金属碳化物，氮化物和碳氮化物晶须的制造
公开(公告)号：US5853477A
公开(公告)日：1998-12-29
申请号：US772099
申请日：1996-12-20
申请人： R. Tom Coyle , Magnus Ekelund , Mats Nygren , Mats Johnsson
发明人： R. Tom Coyle , Magnus Ekelund , Mats Nygren , Mats Johnsson
IPC分类号： C30B29/62 , C30B25/00
CPC分类号： C30B25/005 , C30B29/36 , C30B29/38 , Y10S977/734 , Y10S977/762 , Y10S977/776 , Y10S977/90
摘要： There is disclosed a method of producing, in large volumes and at low cost, Ta, Nb, Zr and Hf carbide, nitride or carbonitride whiskers, preferably submicron, having excellent reinforcing properties, suitable as reinforcement in a wide range of materials, including metals, intermetallics, plastics, ceramics and metallic bonded hard material. Oxides of Ta, Nb, Zr and Hf or alkali compounds thereof in an amount to satisfy the stoichiometric requirements of the desired carbide or nitride are mixed with the carbon source along with an alkali and/or alkali earth metal halogenide as a volatilization agent for the metal and a catalyst for the whisker growth such as Ni and/or Co. The reactant powders are blended in some typical manner using a high speed blender so as to intimately mix them. Finally, the starting material is subjected to nitriding, carbonizing or carbonitriding heat treatments in order to produce the desired whiskers.
摘要翻译：公开了大量且低成本地生产具有优异的增强性能的Ta，Nb，Zr和Hf碳化物，氮化物或碳氮化物晶须，优选亚微米级的方法，适用于在宽范围的材料（包括金属）中的增强，金属间化合物，塑料，陶瓷和金属粘结硬质材料。将满足所需碳化物或氮化物的化学计量要求的量的Ta，Nb，Zr和Hf的氧化物或其碱金属化合物与作为挥发剂的碱和/或碱土金属卤化物一起与碳源一起混合金属和用于晶须生长的催化剂如Ni和/或Co.使用高速混合器以一些典型的方式将反应物粉末混合，以便将它们紧密混合。最后，对原料进行氮化，碳化或碳氮共渗处理，以产生所需的晶须。

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