Ablative property of ZrC-SiC multilayer coating for PIP-C/SiC composites under oxy-acetylene torch

被引:45
|
作者
Xiang Yang [1 ]
Li Wei [1 ]
Wang Song [1 ]
Chen Zhao-hui [1 ]
机构
[1] Natl Univ Def Technol, Key Laboratoty Adv Ceram Fibers & Composites, Changsha 410073, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
PIP-C/SiC composites; Coating; ZrC; Ablation; MECHANICAL-PROPERTIES; MICROSTRUCTURE; PYROLYSIS; INFILTRATION; RESISTANCE; OXIDATION;
D O I
10.1016/j.ceramint.2011.11.063
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
To improve ablation resistance of PIP-C/SiC composites, ZrC-SiC multilayer coating was prepared on surface of PIP-C/SiC composites by chemical vapor deposition and slurry. The coating shows dense surface and outstanding anti-ablation ability. Compare with uncoated PIP-C/SiC, the linear and mass ablation rates of the coated PIP-C/SiC decrease by 59.5% and 50.3%, respectively, after ablation for 30 s. Large amounts of heat can be taken away by the gas generated during ablation, which is also helpful for protection for the composites. Crown Copyright (C) 2011 Published by Elsevier Ltd and Techna Group Sri. All rights reserved.
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页码:2893 / 2897
页数:5
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