Effects of ZrC particle size on ablation behavior of C/C-SiC-ZrC composites prepared by chemical liquid vapor deposition

被引：33
作者：
He, Qinchuan [1 ,2 ]
Li, Hejun [3 ]
Tan, Qing [1 ]
Lu, Jinhua [3 ]
Yin, Xuemin [3 ]
机构：
[1] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
[2] Mat Corros & Protect Key Lab Sichuan Prov, Zigong 643000, Peoples R China
[3] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 205卷
基金：
中国国家自然科学基金;
关键词：
C/C-SiC-ZrC; UHTCs; Particlesize; Microstructure; Ablationbehavior; OXIDATION; RESISTANCE; COATINGS; MICROSTRUCTURE; FABRICATION; MECHANISM; DENSITY;
D O I：
10.1016/j.corsci.2022.110469
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The particle size of ultra-high temperature ceramics (UHTCs) possesses a critical effect on ablation behavior of C/C-UHTCs composites. The role of ZrC particle size on ablation resistance of C/C-SiC-ZrC composites was studied in this work. Results displayed ZrC particles with-1 mu m produced a broken oxide coating on ablation surface, showing an unsatisfactory ablation resistance. It was difficult for-3.8 mu m ZrC particles to form a dense oxide coating, thus the coating could not hinder oxygen corrosion. ZrC particles with-2.7 mu m promoted the formation of a continuous and viscous oxide coating, delaying oxygen diffusion and resisting airflow scouring.
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页数：12
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