发明名称 |
METHOD OF PRODUCING ULTRA-NANO-DISPERSED POWDER OF CARBIDE |
摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention may be used in powder metallurgy. Proposed powder of oxide or mix of oxides of tungsten or cobalt is produced by neutralising water solution of appropriate inorganic salt or salts in the presence of black pre-added to solution in amount of MeO : C = 1 : (2-5) in terms of oxide or mix of oxides WO3 and/or Co3O4. Conversion into tungsten-carbide is performed by microwave radiation with frequency of 2450-3000 MHz at 700-1200 W. ^ EFFECT: production of tungsten and cobalt carbide powders with specific surface approximating to 6,93 m2/g and particle size of 100-400 nm. ^ 2 cl, 3 dwg, 2 ex |
申请公布号 |
RU2418742(C2) |
申请公布日期 |
2011.05.20 |
申请号 |
RU20090131095 |
申请日期 |
2009.08.14 |
申请人 |
INSTITUT KHIMII TVERDOGO TELA URAL'SKOGO OTDELENIJA ROSSIJSKOJ AKADEMII NAUK |
发明人 |
SHVEJKIN GENNADIJ PETROVICH;NIKOLAENKO IRINA VLADIMIROVNA |
分类号 |
B82B1/00;C01B31/34;C01G41/00;C01G51/00 |
主分类号 |
B82B1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|