Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第7卷    第2期    总第23期    1997年6月

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文章编号:(1997)02-140-5
气相蒸发法制备超微金属粉末
严红革    陈振华    黄培云

(中南工业大学非平衡材料研究所, 长沙 410083)

摘 要: 在对粉末制备过程进行深入理论分析的基础上设计了两种粉末收集器,系统研究了蒸发温度、坩埚直径、收集器内的冷凝效果与粉末产率之间的关系和收集器的冷凝效果对晶核生长过程及粉末形貌的影响。

 

关键字:   气相蒸发    气相冷凝    热沉    捕收

PREPARATION OF ULTRAFINE METALLIC POWDERS BY GAS EVAPORATION TECHNIQUE
Yan Hongge, Chen Zhenhua, Huang Peiyun

Nonequilibrium Material Science and Engineering Institute,
Central South University of Technology , Changsha 410083

Abstract:Two type of ultrafine metallic powder collectors have been developed on the basis of further theoritical analysis of the preparating process by gas evaporating process, and then the relationships between evaporating temperature, diameter of crucible, cooling effect of the collectors and powders productivity were systematically studied, and so were the cooling effects on the growth of crystal nucleus and morphologies of the as-prepared powders.

 

Key words:     gas evaporation    evapor condensation    thermal    precipitation capture

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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