Influence of carbon preform density on the microstructure and ablation resistance of CLVD-C/C-ZrC-SiC composites

被引：42

作者：

He, Qinchuan ^{[1
,2
]}

Li, Hejun ^{[3
]}

Tan, Qing ^{[1
]}

Lu, Jinhua ^{[3
]}

Wang, Yiqun ^{[1
]}

机构：

[1] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China

[2] Shaanxi Univ Sci & Technol, New Style Think Tank Shaanxi Univ, Res Ctr Auxiliary Chem & New Mat Dev, Xian 710021, Peoples R China

[3] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 190卷

基金：

中国国家自然科学基金;

关键词：

CLVD process; Preform density; C; C-ZrC-SiC; Microstructure; Ablation resistance; REACTIVE MELT INFILTRATION; MECHANICAL-PROPERTIES; RAPID DENSIFICATION; C/SIC COMPOSITES; JOINT PROCESSES; OXIDATION; BEHAVIOR; FABRICATION; PROPERTY;

D O I：

10.1016/j.corsci.2021.109648

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In chemical liquid vapor deposition (CLVD) technique, carbon preform density is a crucial factor to control the microstructure of C/C-ZrC-SiC composites, which also determines the ablation resistance. The effects of preform density on the microstructure and ablation behavior of CLVD-C/C-ZrC-SiC composites were studied. Results demonstrated the composites prepared from the preform with a density of 0.91 g/cm(3) showed a dense microstructure and proper ceramic content. Under an oxyacetylene flame, the composites displayed an excellent ablation resistance. The good ablation resistance was ascribed to the proper preform density, which promoted the formation of uniform and continuous protective layer of ZrO2-SiO2.

引用

页数：14

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