%0 Journal Article
%T Oxidation Behaver of Fe3O4 Coaded with SiO2 by Fluidized CVD<br>流态化CVD包硅的Fe3O4的氧化行为
%A ZHU Yi-Hua
%A WU Qiu-Fang
%A LI Chun-Zhong
%A <br>朱以华
%A 吴秋芳
%A 李春忠
%J 无机材料学报
%D 2000
%I Science Press
%X Fe3O4 magnetic powder coated with uniform SiO2 layer was obtained by fluidized CVDtechnique. The oxidation mechanism and the kinetics of the SiO2 coated Fe3O4 were investigated.The results show that the mechanism of oxidation of the SiO2 coated Fe3O4 is inferred as phaseboundary reaction, spherical symmetry. The activation energy is increased with increasing silicacontent. The silica protect layer on the Fe3O4 magnetic powder formed by fluidized CVD techniquecan improve the oxidation-resistance of Fe3O4.
%K fluidized CVD
%K iron oxides
%K magnetic powder
%K oxidation kinetics<br>流态化包覆
%K 氧化铁
%K 磁粉
%K 氧化动力学
%K CVD
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=859BF0D91AAD0977&yid=9806D0D4EAA9BED3&vid=23CCDDCD68FFCC2F&iid=CA4FD0336C81A37A&sid=96C778EE049EE47D&eid=9971A5E270697F23&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=3&reference_num=9