Preparation and properties of SiC/SiC-SiYC with excellent water-oxygen corrosion resistance

Jingxin Li; Yongsheng Liu; Fang He; Binghui Zhang; Yunzhen Li; Jing Wang; Yejie Cao; Nan Chai

doi:10.1016/j.jeurceramsoc.2023.06.007

Preparation and properties of SiC/SiC-SiYC with excellent water-oxygen corrosion resistance

Jingxin Li, Yongsheng Liu, Fang He, Binghui Zhang, Yunzhen Li, Jing Wang, Yejie Cao, Nan Chai

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

17 Scopus citations

Abstract

In this study, the SiC/SiC-SiYC composites were fabricated via chemical vapor infiltration (CVI) combined with the reactive melt infiltration (RMI) process. The excellent infiltration of Si-Y alloy assisted in fabricating composites with a density of 2.94 g/cm³ and a porosity of only 2.0%. After 20 h of corrosion at 1300 °C in the water-oxygen environment, the generated oxide layer, consisting of a glass layer and a diffusion layer, effectively protected the composites, and the flexural strength retention is 114.2%. This study highlights the significant potential of Si-Y alloy as a modification phase that is resistant to water and oxygen. It also presents a novel approach for developing high-density ceramic matrix composites that are resistant to water-oxygen corrosion.

Original language	English
Pages (from-to)	6606-6611
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	14
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.06.007
State	Published - Nov 2023

Keywords

Microstructure
SiC/SiC-SiYC composites
Water-oxygen corrosion
Yttrium silicate

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10.1016/j.jeurceramsoc.2023.06.007

Cite this

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title = "Preparation and properties of SiC/SiC-SiYC with excellent water-oxygen corrosion resistance",

abstract = "In this study, the SiC/SiC-SiYC composites were fabricated via chemical vapor infiltration (CVI) combined with the reactive melt infiltration (RMI) process. The excellent infiltration of Si-Y alloy assisted in fabricating composites with a density of 2.94 g/cm3 and a porosity of only 2.0%. After 20 h of corrosion at 1300 °C in the water-oxygen environment, the generated oxide layer, consisting of a glass layer and a diffusion layer, effectively protected the composites, and the flexural strength retention is 114.2%. This study highlights the significant potential of Si-Y alloy as a modification phase that is resistant to water and oxygen. It also presents a novel approach for developing high-density ceramic matrix composites that are resistant to water-oxygen corrosion.",

keywords = "Microstructure, SiC/SiC-SiYC composites, Water-oxygen corrosion, Yttrium silicate",

author = "Jingxin Li and Yongsheng Liu and Fang He and Binghui Zhang and Yunzhen Li and Jing Wang and Yejie Cao and Nan Chai",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

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doi = "10.1016/j.jeurceramsoc.2023.06.007",

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T1 - Preparation and properties of SiC/SiC-SiYC with excellent water-oxygen corrosion resistance

AU - Li, Jingxin

AU - Liu, Yongsheng

AU - He, Fang

AU - Zhang, Binghui

AU - Li, Yunzhen

AU - Wang, Jing

AU - Cao, Yejie

AU - Chai, Nan

PY - 2023/11

Y1 - 2023/11

N2 - In this study, the SiC/SiC-SiYC composites were fabricated via chemical vapor infiltration (CVI) combined with the reactive melt infiltration (RMI) process. The excellent infiltration of Si-Y alloy assisted in fabricating composites with a density of 2.94 g/cm3 and a porosity of only 2.0%. After 20 h of corrosion at 1300 °C in the water-oxygen environment, the generated oxide layer, consisting of a glass layer and a diffusion layer, effectively protected the composites, and the flexural strength retention is 114.2%. This study highlights the significant potential of Si-Y alloy as a modification phase that is resistant to water and oxygen. It also presents a novel approach for developing high-density ceramic matrix composites that are resistant to water-oxygen corrosion.

AB - In this study, the SiC/SiC-SiYC composites were fabricated via chemical vapor infiltration (CVI) combined with the reactive melt infiltration (RMI) process. The excellent infiltration of Si-Y alloy assisted in fabricating composites with a density of 2.94 g/cm3 and a porosity of only 2.0%. After 20 h of corrosion at 1300 °C in the water-oxygen environment, the generated oxide layer, consisting of a glass layer and a diffusion layer, effectively protected the composites, and the flexural strength retention is 114.2%. This study highlights the significant potential of Si-Y alloy as a modification phase that is resistant to water and oxygen. It also presents a novel approach for developing high-density ceramic matrix composites that are resistant to water-oxygen corrosion.

KW - Microstructure

KW - SiC/SiC-SiYC composites

KW - Water-oxygen corrosion

KW - Yttrium silicate

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U2 - 10.1016/j.jeurceramsoc.2023.06.007

DO - 10.1016/j.jeurceramsoc.2023.06.007

M3 - 文章

AN - SCOPUS:85161298544

SN - 0955-2219

VL - 43

SP - 6606

EP - 6611

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 14

ER -

Preparation and properties of SiC/SiC-SiYC with excellent water-oxygen corrosion resistance

Abstract

Keywords

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