%0 Journal Article
%T W-Mo-Si/SiC Oxidation Protective Coating for Carbon/Carbon Composites
%A Dangshe HOU
%A Kezhi LI
%A Hejun LI
%A Qiangang FU
%A Jian WEI
%A Yulei ZHANG
%A <br>Dangshe
%A HOU
%A Kezhi
%A LI
%A Hejun
%A LI
%A Qiangang
%A FU
%A Jian
%A WEI
%A Yulei
%A ZHANG
%J 材料科学技术学报
%D 2007
%I 
%X A W-Mo-Si/SiC double-layer oxidation protective coating for carbon/carbon (C/C) composites was prepared by a two-step pack cementation technique. XRD (X-ray diffraction) and SEM (scanning electron microscopy)results show that the coating obtained by the first step pack cementation was a thin inner buffer layer of SiC with some cracks and pores, and a new phase of (WxMo1-x)Si2 appeared after the second step pack cementation. Oxidation test shows that, after oxidation in air at 1773 K for 175 h and thermal cycling between 1773 K and room temperature for 18 times, the weight loss of the W-Mo-Si/SiC coated C/C composites was only 2.06%. The oxidation protective failure of the W-Mo-Si/SiC coating was attributed to the formation of some penetrable cracks in the coating.
%K C/C composites
%K Coating
%K Microstructure
%K Oxidation<br>涂料
%K 微结构
%K 氧化
%K 粉末冶金合成物
%K 碳合成物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=3FB7E6B72BCB8CEE&yid=A732AF04DDA03BB3&vid=EA389574707BDED3&iid=E158A972A605785F&sid=8966A0F1B07BE5EE&eid=12AD09BCF4A6E651&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=20