发明公开
- 专利标题： CARBONITRID-PULVER, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG
- 专利标题（英）： Carbonitride powder, method for producing same, and use thereof
- 专利标题（中）： 碳氮化物粉末，方法进行生产及其用途
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申请号： EP98904128.0申请日： 1998-01-23
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公开(公告)号： EP1025042A1公开(公告)日： 2000-08-09
- 发明人: GILLE, Gerhard , GRIES, Benno , VON RUTHENDORF-PRZEWOSKI, Monika , BERGER, Lutz-Michael , RICHTER, Volkmar
- 申请人： H.C. Starck GmbH & Co. KG , FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DERANGEWANDTEN FORSCHUNG E.V.
- 申请人地址： Im Schleeke 78-91 38642 Goslar DE
- 专利权人： H.C. Starck GmbH & Co. KG,FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DERANGEWANDTEN FORSCHUNG E.V.
- 当前专利权人： H.C. Starck GmbH & Co. KG,FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DERANGEWANDTEN FORSCHUNG E.V.
- 当前专利权人地址： Im Schleeke 78-91 38642 Goslar DE
- 代理机构： Drope, Rüdiger, Dr.
- 优先权： DE19704242 19970205
- 国际公布： WO9834874 19980813
- 主分类号： C01B21/082
- IPC分类号： C01B21/082 ; C22C1/05 ; C22C29/04
摘要：
The present invention relates to a method for producing carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements by calcination of mixtures of corresponding double oxides or multiple oxides, soot and possibly other carbon-containing compounds in an atmosphere containing nitrogen. The invention also relates to carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements having a mean particle size d50 of less than 5 νm, oxygen and free carbon contents of less than 0.1 weight percent each, as well as impurities of metals belonging to the iron group amounting to less than 0.15 weight percent. The invention further relates to a two-phase titanium-zirconium-carbonitride powder with a mean particle size d50 of less than 5 νm, and a single-phase titanium-zirconium-carbonitride powder with an equimolar Zr:Ti ratio, a nitrogen content of up to 10 weight percent nitrogen, and a mean particle size d50 of less than 5 νm. In addition, the invention relates to the use of said carbonitride powders.
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