Preparation and characterization of C/SiC-ZrB2 composites by precursor infiltration and pyrolysis process
Preparation and characterization of C/SiC-ZrB2 composites by precursor infiltration and pyrolysis process
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DOI：
10.1016/j.ceramint.2009.11.015
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发表时间：
2010-04-01
影响因子：
5.2
通讯作者：
Wang, Jun
中科院分区：
文献类型：
--
作者：
Hu, Haifeng;Wang, Qikun;Wang, Jun
采用料浆法、先驱体法和热解法制备了C/SiC-ZrB 2超高温陶瓷基复合材料。当ZrB 2体积含量为10%~ 24.6%时，C/SiC-ZrB 2复合材料的断裂韧性表现均衡（17.7-8.1 MPa m（1/2）），室温下的弯曲强度（367-163 MPa）和高温下（1800 ℃强度保持率74%，2000 ℃强度保持率32%以上），在氧乙炔炬环境下具有更好的抗氧化和抗烧蚀性能（衰退率0.01 mm/s）。(C)2009 Elsevier Ltd和Techna Group S.r.l. All rights reserved.
Ultra-high temperature ceramic matrix composites (C/SiC-ZrB2) are prepared by slurry and precursor infiltrations and pyrolysis method. C/SiC-ZrB2 composites with ZrB2 volume content from 10% to 24.6%, have balanced performance of fracture toughness (17.7-8.1 MPa m(1/2)), flexural strength at room temperature (367-163 MPa) and at high temperature (strength retention 74% at 1800 degrees C and over 32% at 2000 degrees C), better oxidation and ablation resistance under oxyacetylene torch environment (recession rate 0.01 mm/s). (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.