Improvement of ablation resistance of CVD-HfC/SiC coating on hemisphere shaped C/C composites by introducing diffusion interface

Mingde Tong; Qiangang Fu; Dou Hu; Lei Zhou; Tao Feng

doi:10.1016/j.jeurceramsoc.2021.02.004

Improvement of ablation resistance of CVD-HfC/SiC coating on hemisphere shaped C/C composites by introducing diffusion interface

Mingde Tong, Qiangang Fu, Dou Hu, Lei Zhou, Tao Feng

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

To optimize the bonding strength and ablation resistance of HfC based coating on hemisphere shaped C/C composites, a HfC-SiC diffusion interface was introduced by in-situ reaction and chemical vapor deposition. The microstructure, bonding strength and ablation resistance were characterized. After introducing HfC-SiC diffusion, the bonding strength significantly increased by 179 %. For hemisphere shaped samples, the linear and mass ablation rates decreased by 65.0 % and 53.0 %, respectively. The improvement of ablation resistance was attributed to the adhension effect of Hf-Si-O glass phase generated in outer layer and the increase of bonding strength.

Original language	English
Pages (from-to)	4067-4075
Number of pages	9
Journal	Journal of the European Ceramic Society
Volume	41
Issue number	7
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2021.02.004
State	Published - Jul 2021

Keywords

Ablation
Bonding strength
Chemical vapor deposition
HfC

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10.1016/j.jeurceramsoc.2021.02.004

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title = "Improvement of ablation resistance of CVD-HfC/SiC coating on hemisphere shaped C/C composites by introducing diffusion interface",

abstract = "To optimize the bonding strength and ablation resistance of HfC based coating on hemisphere shaped C/C composites, a HfC-SiC diffusion interface was introduced by in-situ reaction and chemical vapor deposition. The microstructure, bonding strength and ablation resistance were characterized. After introducing HfC-SiC diffusion, the bonding strength significantly increased by 179 %. For hemisphere shaped samples, the linear and mass ablation rates decreased by 65.0 % and 53.0 %, respectively. The improvement of ablation resistance was attributed to the adhension effect of Hf-Si-O glass phase generated in outer layer and the increase of bonding strength.",

keywords = "Ablation, Bonding strength, Chemical vapor deposition, HfC",

author = "Mingde Tong and Qiangang Fu and Dou Hu and Lei Zhou and Tao Feng",

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year = "2021",

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T1 - Improvement of ablation resistance of CVD-HfC/SiC coating on hemisphere shaped C/C composites by introducing diffusion interface

AU - Tong, Mingde

AU - Fu, Qiangang

AU - Hu, Dou

AU - Zhou, Lei

AU - Feng, Tao

PY - 2021/7

Y1 - 2021/7

N2 - To optimize the bonding strength and ablation resistance of HfC based coating on hemisphere shaped C/C composites, a HfC-SiC diffusion interface was introduced by in-situ reaction and chemical vapor deposition. The microstructure, bonding strength and ablation resistance were characterized. After introducing HfC-SiC diffusion, the bonding strength significantly increased by 179 %. For hemisphere shaped samples, the linear and mass ablation rates decreased by 65.0 % and 53.0 %, respectively. The improvement of ablation resistance was attributed to the adhension effect of Hf-Si-O glass phase generated in outer layer and the increase of bonding strength.

AB - To optimize the bonding strength and ablation resistance of HfC based coating on hemisphere shaped C/C composites, a HfC-SiC diffusion interface was introduced by in-situ reaction and chemical vapor deposition. The microstructure, bonding strength and ablation resistance were characterized. After introducing HfC-SiC diffusion, the bonding strength significantly increased by 179 %. For hemisphere shaped samples, the linear and mass ablation rates decreased by 65.0 % and 53.0 %, respectively. The improvement of ablation resistance was attributed to the adhension effect of Hf-Si-O glass phase generated in outer layer and the increase of bonding strength.

KW - Ablation

KW - Bonding strength

KW - Chemical vapor deposition

KW - HfC

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DO - 10.1016/j.jeurceramsoc.2021.02.004

M3 - 文章

AN - SCOPUS:85101070116

SN - 0955-2219

VL - 41

SP - 4067

EP - 4075

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 7

ER -

Improvement of ablation resistance of CVD-HfC/SiC coating on hemisphere shaped C/C composites by introducing diffusion interface

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Keywords

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