Preparation and mechanical behavior of Yb2Si2O7 interphase in SiCf/SiC minicomposites

被引：0

作者：

Mu, Shuang ^{[1
,2
,3
]}

Ma, Qin ^{[1
,2
,3
]}

Zhang, Yu ^{[1
,2
,3
]}

Shen, Xu ^{[1
,2
,3
]}

Liao, Chunjing ^{[1
,2
]}

Zhang, Xiangyu ^{[1
,2
]}

Ding, Yusheng ^{[1
,2
]}

Dong, Shaoming ^{[1
,2
,4
]}

Yang, Jinshan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine M, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Struct Ceram & Composites Engn Res Ctr, Shanghai, Peoples R China

[3] Univ Chinese Acad Sci, Beijing, Peoples R China

[4] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2025年 / 108卷 / 01期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

interface; SiC fiber; SiCf/SiC composites; Yb2Si2O7; interphase; ENVIRONMENTAL BARRIER COATINGS; CERAMIC-MATRIX COMPOSITES; SIC/SIC COMPOSITES; MINI-COMPOSITES; OXIDATION; BETA-YB2SI2O7; RESISTANCE; EVOLUTION; CMCS; ART;

D O I：

10.1111/jace.20153

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, the Yb2Si2O7 interphase was prepared on SiC fibers using the sol-gel method. The influence of sol concentration on the morphology of the interphase was discussed. After heat treatment in argon at 1200 degrees C for 1 h, the Yb2Si2O7 was grown in situ on the fiber surface, forming an interphase layer. Then, SiCf/Yb2Si2O7/SiC minicomposites were prepared by chemical vapor infiltration (CVI). The Yb2Si2O7 interphase exhibited no changes throughout the high-temperature preparation process and maintained stability and compatibility with the fiber and matrix. The tensile strength of SiCf/Yb2Si2O7/SiC minicomposites with Yb2Si2O7 interphase was significantly higher than SiCf/SiC minicomposites without interphase. The crack deflection, interfacial debonding, and fiber pullout were observed in the tensile fracture of the SiCf/Yb2Si2O7/SiC minicomposites.

引用

页数：10

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