Preparation and Ablative Property of Laminated ZrB2-SiC Ceramics

来源 :The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会) | 被引量 : 0次 | 上传用户：huangpei999

【摘要】

：

　　SiC particle and whisker(SiCp/w)reinforced ZrB2 laminated ceramics were fabricated by tape casting,laminating combined with hot pressed sintering.The materi

【作者】

：

LanSHI;LaifeiCHENG;LitongZHANG;

【机构】

：

Science and Technology on Thermostructural Composite Materials Laboratory,Northwestern Polytechnical

【出处】

：

The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)

【发表日期】

：

2014年期

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　　SiC particle and whisker(SiCp/w)reinforced ZrB2 laminated ceramics were fabricated by tape casting,laminating combined with hot pressed sintering.The materials were alternately consist of ZrB2+30vol%SiCw layers and ZrB2+20vol%SiCp layers with sintering aid of 5vol%AlN.The density was 5.08 g/cm3 with a relative density of 97.3%.The fracture toughness has a great increase compared with ZrB2 ceramics.Also,the materials exhibited excellent ablation resistance,with zero ablation in macroscopic level.

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