(中南工業(yè)大學非平衡材料研究所, 長沙 410083)
摘 要: 在對粉末制備過程進行深入理論分析的基礎(chǔ)上設(shè)計了兩種粉末收集器，系統(tǒng)研究了蒸發(fā)溫度、坩堝直徑、收集器內(nèi)的冷凝效果與粉末產(chǎn)率之間的關(guān)系和收集器的冷凝效果對晶核生長過程及粉末形貌的影響。
關(guān)鍵字: 氣相蒸發(fā) 氣相冷凝 熱沉 捕收
（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
