Ablation performance of C/HfC-SiC composites with in-situ HfSi2/HfC/SiC multi-phase coatings under 3000 ℃ oxyacetylene torch

Sijie Kou; Shangwu Fan; Xu Ma; Yujie Ma; Chenghua Luan; Jingchao Ma; Chuanxin Liu

doi:10.1016/j.corsci.2022.110218

Ablation performance of C/HfC-SiC composites with in-situ HfSi₂/HfC/SiC multi-phase coatings under 3000 ℃ oxyacetylene torch

Sijie Kou, Shangwu Fan, Xu Ma, Yujie Ma, Chenghua Luan, Jingchao Ma, Chuanxin Liu

School of Materials Sience and Engineering

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

34 Scopus citations

Abstract

A HfSi₂/HfC/SiC multi-phase coating with reticular HfSi₂ as a skeleton was in-situ formed on the surface of C/HfC-SiC composite after RMI process. After ablation for 120 s, the linear and mass ablation rate of the prepared composites was − 2.33 ± 0.14 µm/s and − 0.06 ± 0.03 mg/s·cm², respectively. In the central region, there were voids inside coating and a gap was between the coating and substrate, while in the transitional region a dense HfC_1−xO_x-HfO₂-SiC mixed layer effectively protected substrate from ablation. In the brim region, only the coating near-surface was ablated. The results proved infinite potential of C/HfC-SiC composites with in-situ coating in ablation resistance.

Original language	English
Article number	110218
Journal	Corrosion Science
Volume	200
DOIs	https://doi.org/10.1016/j.corsci.2022.110218
State	Published - 15 May 2022

Keywords

Ablation performance
Ceramic matrix composites
In-situ coating
Reactive melt infiltration

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10.1016/j.corsci.2022.110218

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title = "Ablation performance of C/HfC-SiC composites with in-situ HfSi2/HfC/SiC multi-phase coatings under 3000 ℃ oxyacetylene torch",

abstract = "A HfSi2/HfC/SiC multi-phase coating with reticular HfSi2 as a skeleton was in-situ formed on the surface of C/HfC-SiC composite after RMI process. After ablation for 120 s, the linear and mass ablation rate of the prepared composites was − 2.33 ± 0.14 µm/s and − 0.06 ± 0.03 mg/s·cm2, respectively. In the central region, there were voids inside coating and a gap was between the coating and substrate, while in the transitional region a dense HfC1−xOx-HfO2-SiC mixed layer effectively protected substrate from ablation. In the brim region, only the coating near-surface was ablated. The results proved infinite potential of C/HfC-SiC composites with in-situ coating in ablation resistance.",

keywords = "Ablation performance, Ceramic matrix composites, In-situ coating, Reactive melt infiltration",

author = "Sijie Kou and Shangwu Fan and Xu Ma and Yujie Ma and Chenghua Luan and Jingchao Ma and Chuanxin Liu",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = may,

day = "15",

doi = "10.1016/j.corsci.2022.110218",

language = "英语",

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journal = "Corrosion Science",

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T1 - Ablation performance of C/HfC-SiC composites with in-situ HfSi2/HfC/SiC multi-phase coatings under 3000 ℃ oxyacetylene torch

AU - Kou, Sijie

AU - Fan, Shangwu

AU - Ma, Xu

AU - Ma, Yujie

AU - Luan, Chenghua

AU - Ma, Jingchao

AU - Liu, Chuanxin

PY - 2022/5/15

Y1 - 2022/5/15

N2 - A HfSi2/HfC/SiC multi-phase coating with reticular HfSi2 as a skeleton was in-situ formed on the surface of C/HfC-SiC composite after RMI process. After ablation for 120 s, the linear and mass ablation rate of the prepared composites was − 2.33 ± 0.14 µm/s and − 0.06 ± 0.03 mg/s·cm2, respectively. In the central region, there were voids inside coating and a gap was between the coating and substrate, while in the transitional region a dense HfC1−xOx-HfO2-SiC mixed layer effectively protected substrate from ablation. In the brim region, only the coating near-surface was ablated. The results proved infinite potential of C/HfC-SiC composites with in-situ coating in ablation resistance.

AB - A HfSi2/HfC/SiC multi-phase coating with reticular HfSi2 as a skeleton was in-situ formed on the surface of C/HfC-SiC composite after RMI process. After ablation for 120 s, the linear and mass ablation rate of the prepared composites was − 2.33 ± 0.14 µm/s and − 0.06 ± 0.03 mg/s·cm2, respectively. In the central region, there were voids inside coating and a gap was between the coating and substrate, while in the transitional region a dense HfC1−xOx-HfO2-SiC mixed layer effectively protected substrate from ablation. In the brim region, only the coating near-surface was ablated. The results proved infinite potential of C/HfC-SiC composites with in-situ coating in ablation resistance.

KW - Ablation performance

KW - Ceramic matrix composites

KW - In-situ coating

KW - Reactive melt infiltration

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U2 - 10.1016/j.corsci.2022.110218

DO - 10.1016/j.corsci.2022.110218

M3 - 文章

AN - SCOPUS:85126045772

SN - 0010-938X

VL - 200

JO - Corrosion Science

JF - Corrosion Science

M1 - 110218

ER -

Ablation performance of C/HfC-SiC composites with in-situ HfSi₂/HfC/SiC multi-phase coatings under 3000 ℃ oxyacetylene torch

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Keywords

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