高频热等离子体制备特种粉体研究进展

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袁方利*，金化成，侯果林，白柳杨，丁飞，李保强，陈运法

中国科学院过程工程研究所材料与环境工程研究部，多相复杂系统国家重点实验室，北京 100190

收稿日期:2018-07-10修回日期:2018-08-21出版日期:2018-12-22发布日期:2018-12-19
通讯作者:李保强

基金资助:热等离子体强化反应及颗粒生长调控的基础问题研究

Progress on preparation of special powders using HF thermal plasma

Fangli YUAN*, Huacheng JIN, Guolin HOU, Liuyang BAI, Fei DING, Baoqiang LI, Yunfa CHEN

State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2018-07-10Revised:2018-08-21Online:2018-12-22Published:2018-12-19

摘要/Abstract

摘要： 高频感应热等离子体具有能量密度大、温度高和冷却速率快等特点，是制备特种粉体的重要手段之一. 本工作介绍了过程所在高频热等离子体制备特种粉体方面的研究进展. 利用热等离子体的高温和快速冷却过程，粗颗粒经等离子体弧高温气化，通过控制冷却速率能得到纳米粉体，利用该方法制备了纳米球形硅、铁、钴和镍等粉体，纳米硅粉可用于锂离子电池负极材料. 具有固定熔点的不规则颗粒在等离子体弧中经熔融形成球形液滴，快速冷却能获得规则致密的球形颗粒，通过等离子体球化制备了高熔点的钨、钼、铌、铬等规则致密的球形粉体. 利用活性氢的瞬时强化还原反应，采用化学气相沉积能制备超细钨、钼、镍和铜等球形金属超细粉体. 活性氧有助于调控颗粒的氧化生长过程，采用金属等的氧化反应可获得多种特殊形貌的氧化物.

引用本文

袁方利金化成侯果林白柳杨丁飞李保强陈运法. 高频热等离子体制备特种粉体研究进展[J]. 过程工程学报, 2018, 18(6): 1138-1144.
Fangli YUAN Huacheng JIN Guolin HOU Liuyang BAI Fei DING Baoqiang LI Yunfa CHEN. Progress on preparation of special powders using HF thermal plasma[J]. Chin. J. Process Eng., 2018, 18(6): 1138-1144.

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