发明名称 METHOD FOR PRODUCING A FINE GRAINED POWDER CONSISTING OF NITRIDES AND CARBONITRIDES OF TITANIUM
摘要 The invention relates to a method for producing fine grained, sintering active nitride and/or carbonitride powder of titanium as well as, optionally, of other metals of the IVA, VA and VIA group of the periodic table of elements. In order to achieve, without any considerable comminution, a grain of high purity with a low grain size, the following steps are performed: - The introduction into the reactor of a reaction mixture consisting of oxides of titanium and, optionally, of other metals of the IVA, VA and VIA group of the periodic system and a carbonaceous material; - providing a nitrogen atmosphere in the reactor at a decreased pressure; - heating the content of the reactor to a temperature of between 800.degree.C and 2000.degree.C, preferably between 1000.degree.C and 1900.degree.C, and keeping the temperature within a range of between 1400.degree.C and 1800.degree.C with simultaneous carrying-off of the gaseous reaction products, whereby nitrogen or a gas which delivers nitrogen is directed through or over the reaction mixture; - cooling the content of the reactor.
申请公布号 CA2037413(C) 申请公布日期 2000.05.09
申请号 CA19912037413 申请日期 1991.03.01
申请人 发明人 ZEIRINGER, HANS
分类号 C01B21/06;C01B21/076;C01B21/082;C04B35/56;C04B35/58;(IPC1-7):C01B21/076;C01B31/30 主分类号 C01B21/06
代理机构 代理人
主权项
地址