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论文类型：会议论文

发表时间：2008-10-04

收录刊物：EI、CPCI-S、Scopus

页面范围：530-536

关键字：Electrostatic dry deposition; Chain aggregate; Porous ceramic; Dispersion

摘要：This paper describes a new process based on electrostatic dry deposition (EDD), which provides a novel and simple option for the fabrication of porous ceramic filter. Fine Al(2)O(3) particles (average particle size less than 5 mu m) suspended in gas phase were deposited on porous ceramic substrate in the form of particle chains under the action of an electrostatic field without corona generation. After sintering, a three-dimensional network layer was obtained. This process will be simpler than chemical vapor deposition (CVD) method because fine particles are from powder dispersion, not prepared by CVD. Furthermore, many kinds of commercial powder products can be used directly to form porous layer on material surface.