HfC-ZrC-SiC multiphase protective coating for SiC-coated C/C composites prepared by supersonic atmospheric plasma spraying

Yang Yang; Kezhi Li; Zhigang Zhao; Guanxi Liu

doi:10.1016/j.ceramint.2016.10.120

HfC-ZrC-SiC multiphase protective coating for SiC-coated C/C composites prepared by supersonic atmospheric plasma spraying

Yang Yang, Kezhi Li, Zhigang Zhao, Guanxi Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

96 Scopus citations

Abstract

HfC-ZrC-SiC (HZS) multiphase coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying. The morphology and microstructure of HZS coating were characterized by XRD and SEM. The as-prepared coating was composed of different carbides and oxides. The structure was dense and crack free. Each element distributed uniformly in the coating. Ablation resistance test was carried out by oxyacetylene torch. During ablation, the outer coating underwent a process of solid state sintering and formed a dense Hf-Zr-Si-O layer on the surface of coating gradually, which could prevent the oxygen diffusing inward. The inner coating was oxidized gradually with the oxygen permeation and the structure was loose. In addition, the newly formed HfSiO₄ and ZrSiO₄ were generated after cooling, which could play a pinning effect and prevent crack extension.

Original language	English
Pages (from-to)	1495-1503
Number of pages	9
Journal	Ceramics International
Volume	43
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2016.10.120
State	Published - 1 Jan 2017

Keywords

Ablation property
Carbon/carbon composites
Multiphase coating
Supersonic atmospheric plasma spraying

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10.1016/j.ceramint.2016.10.120

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title = "HfC-ZrC-SiC multiphase protective coating for SiC-coated C/C composites prepared by supersonic atmospheric plasma spraying",

abstract = "HfC-ZrC-SiC (HZS) multiphase coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying. The morphology and microstructure of HZS coating were characterized by XRD and SEM. The as-prepared coating was composed of different carbides and oxides. The structure was dense and crack free. Each element distributed uniformly in the coating. Ablation resistance test was carried out by oxyacetylene torch. During ablation, the outer coating underwent a process of solid state sintering and formed a dense Hf-Zr-Si-O layer on the surface of coating gradually, which could prevent the oxygen diffusing inward. The inner coating was oxidized gradually with the oxygen permeation and the structure was loose. In addition, the newly formed HfSiO4 and ZrSiO4 were generated after cooling, which could play a pinning effect and prevent crack extension.",

keywords = "Ablation property, Carbon/carbon composites, Multiphase coating, Supersonic atmospheric plasma spraying",

author = "Yang Yang and Kezhi Li and Zhigang Zhao and Guanxi Liu",

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AU - Yang, Yang

AU - Li, Kezhi

AU - Zhao, Zhigang

AU - Liu, Guanxi

PY - 2017/1/1

Y1 - 2017/1/1

N2 - HfC-ZrC-SiC (HZS) multiphase coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying. The morphology and microstructure of HZS coating were characterized by XRD and SEM. The as-prepared coating was composed of different carbides and oxides. The structure was dense and crack free. Each element distributed uniformly in the coating. Ablation resistance test was carried out by oxyacetylene torch. During ablation, the outer coating underwent a process of solid state sintering and formed a dense Hf-Zr-Si-O layer on the surface of coating gradually, which could prevent the oxygen diffusing inward. The inner coating was oxidized gradually with the oxygen permeation and the structure was loose. In addition, the newly formed HfSiO4 and ZrSiO4 were generated after cooling, which could play a pinning effect and prevent crack extension.

AB - HfC-ZrC-SiC (HZS) multiphase coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying. The morphology and microstructure of HZS coating were characterized by XRD and SEM. The as-prepared coating was composed of different carbides and oxides. The structure was dense and crack free. Each element distributed uniformly in the coating. Ablation resistance test was carried out by oxyacetylene torch. During ablation, the outer coating underwent a process of solid state sintering and formed a dense Hf-Zr-Si-O layer on the surface of coating gradually, which could prevent the oxygen diffusing inward. The inner coating was oxidized gradually with the oxygen permeation and the structure was loose. In addition, the newly formed HfSiO4 and ZrSiO4 were generated after cooling, which could play a pinning effect and prevent crack extension.

KW - Ablation property

KW - Carbon/carbon composites

KW - Multiphase coating

KW - Supersonic atmospheric plasma spraying

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DO - 10.1016/j.ceramint.2016.10.120

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SN - 0272-8842

VL - 43

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JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

HfC-ZrC-SiC multiphase protective coating for SiC-coated C/C composites prepared by supersonic atmospheric plasma spraying

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Keywords

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