流化床还原碳化法制备超细WC－Co复合粉末  

ULTRAFINE WC-Co COMPOSITY POWDER MANUFACTURED BY PROCESS OF REDUCTION AND CARBURIZATION IN FLUID-BED

作　　者：张汉林[1] 刘韩星[1] 欧阳世翕[1] 袁润章[1] 魏明坤[1] 王柱[1] 

机构地区：[1]武汉工业大学,武汉工业大学新材料研究所

出　　处：《粉末冶金技术》1995年第3期202-205,共4页Powder Metallurgy Technology

摘　　要：介绍了一种制备超细ＷＣ－Ｃｏ复合粉末的新工艺─—流化床还原碳化法。ＸＲＤ分析结果表明，该法制备的粉末由ＷＣ和Ｃｏ两相组成。Ｘ－射线小角衍射测定粉末的平均颗粒度为０．１２μｍ。将该粉末压制成形的样品在１２８０℃真空烧结１ｈ获得９９．７％理论密度的试块。A new technology for manufacturing ultrafine WC-Co composite powder by reduction and carburization in fluid-bed has been described in this paper. It was shown by XRD analysis that the powder manufactured is composed of two phases of WC and Co. The average particle size of the powder determined by X-ray small angle diffraction testing was 0. 12μm. Teding bar with a theoretical density of 99. 7% was obtained by sintering such compacted powder sample in vacuum at 1280℃ for 1h.

关 键 词：流化床 复合粉末 钨碳钴粉末 

分 类 号：TF123.74[冶金工程—粉末冶金]