Abstract： To overcome the shortcomings of poor dispersion and agglomeration of ceramic powders, and add new surface properties to ceramic particles to produce composite powders meeting special demands, the main surface modification technologies developed in recent decades, including physical vapor deposition (PVD), chemical vapor deposition (CVD), liquid phase method and mechano-chemistry method were compared and analyzed. The high speed airflow impact equipment and principle were disscussed detailly. The high-speed airflow technology was pointed to be more suitable for preparing ceramic-metal composite powders due to its advantage of low cost, simple process, compact and uniform coating film, less harmful to the environment in the fabrication of core-shell composite particles.

Keywords: ceramic-metal composite powder; surface modification; high speed airflowimpact

中图分类号：TF123.7        文献标志码：A

文章编号：1008-5548(2015)01-0077-05

DOI:10.13732/j.issn.1008-5548.2015.01.017

收稿日期：2014-04-01， 修回日期：2014-04-23，在线出版时间：2015-03-02。

基金项目：国家自然科学基金项目，编号：51302149。

第一作者简介：陈启董（1991—），男，硕士研究生，研究方向为核科学与工程。 E-mail: chenqidong_dream@126.com。

通信作者简介：郭文利（1974—），女，博士，高级工程师，研究方向为核燃料循环与材料。 E-mail:guowenlily@ tsinghua.edu.cn。