%0 Journal Article
%T Influence of Thermal Shock on the Mechanical Behavior of Si-SiC Coated Carbon/Carbon Composites<br>
%A Qiangang Fu
%A Hejun Li
%A Yongjie Wang
%A Kezhi Li
%A Lu Wei
%A <br>
%J 材料科学技术学报
%D 2009
%I 
%X Si-SiC coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step technique of pack cementation, and the influences of thermal shock between 1773 K and room temperature in air on the mechanical property and fracture behavior of the coated C/C were studied. The results show that, after thermal shock between 1773 K and room temperature for 5, 10 and 15 times, the flexural strength of coated composites increases by 4.29%, 15.00% and 24.20%, respectively. The toughness of the coated C/C enhances gradually during the thermal shock test. The improvement of the mechanical property after the thermal shock test is primarily caused by the weakening of the fiber-matrix interface and the reduction of residual thermal stresses by thermal shock.
%K Carbon/carbon composites
%K Coating
%K Mechanical behavior<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=6C5E31D03B32ECE30DDDEF007163881C&yid=DE12191FBD62783C&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=4B1FFFA116F7AE3B&eid=82722E2B785EBF0D&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=21