Ablation behavior and mechanism of SiCnw modified SiC-ZrC coating for graphite under a plasma ablation flame

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成果类型：

期刊论文

作者：

Yang, Cheng;Zeng, Chen;Xu, Ping;Song, Weijie;Xie, Xiangmin;...

通讯作者：

Yang, C;Huang, QZ

作者机构：

[Yang, Cheng; Liu, Bei; Yang, C; Cheng, Huiming] Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China.

[Su, Zhean; Zeng, Chen; Huang, Qizhong; Xu, Ping] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.

[Liu, Jinping; Song, Weijie] Hunan Changyu Sci & Technol Dev Co Ltd, Changsha 410600, Peoples R China.

[Xie, Xiangmin] Univ South China, Sch Nucl Sci & Technol, Hengyang 431001, Peoples R China.

通讯机构：

[Yang, C ; Huang, QZ ] C

Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China.

Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.

语种：

英文

关键词：

Graphite materials;SiC-ZrC coatings;SiC nanowires;Ablation resistance

期刊：

Corrosion Science

ISSN：

0010-938X

年：

2023

卷：

222

页码：

111419

DOI：

10.1016/j.corsci.2023.111419

基金类别：

Science and Technology Foundation of Shenzhen [JCYJ20220530154404010]

机构署名：

本校为其他机构

院系归属：

核科学技术学院

摘要：

The intrinsic brittleness and low bonding strength of SiC-ZrC coatings to the graphite severely limit the ablation performance. Herein, SiC nanowires (SiCnw) were introduced between pre-oxidized graphite and coatings. The brittleness of coatings was reduced and the bonding strength was increased from 5.49 & PLUSMN; 0.88 MPa to 8.33 & PLUSMN; 0.65 MPa by SiCnw. Both simulation and experimental results show SiCnw also worked as thermal conduction channels to improve the ablation resistance. After plasma ablation for 120 s, the ablation rates of SiCnw/SiC-ZrC coated graphite were 0.315 mg/s and 0...

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Ablation behavior and mechanism of SiCnw modified SiC-ZrC coating for graphite under a plasma ablation flame

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