Microstructure and mechanical properties of SiC joint using anorthite based glass-ceramic and first principles calculation of joint interface

被引：4
作者：
Shan, Tipeng [1 ]
Sun, Liangbo [1 ,2 ]
Liu, Chunfeng [1 ,2 ]
Fang, Jian [1 ]
Li, Zengwei [1 ]
Wen, Yue [1 ]
Wang, Boyin [1 ]
Guo, Songsong [1 ]
Zhang, Jie [1 ,2 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Ctr Anal Measurement & Comp, Harbin 150001, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 24期
基金：
中国国家自然科学基金;
关键词：
SiC; Glass-ceramic; Joining; Microstructure; Shear strength; CAO-AL2O3-SIO2; GLASS; SINTERING BEHAVIOR; CLADDING MATERIALS; FILLER METAL; COMPOSITES; ADHESION;
D O I：
10.1016/j.ceramint.2023.09.348
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：
A specialized CaO-Al2O3-SiO2 (CAS) glass-ceramic was innovated to join SiC ceramics. The crystallization kinetics of the CAS glass was studied, revealing distinct anorthite precipitates in the CAS glass-ceramic. The impact of process parameter variations on microstructure and mechanical properties was studied. It revealed that postjoining crystallization heat-treatment could change the size and the content of crystals and significantly improve the shear strength of the joint. It was duly observed that a remarkable shear strength of 86 MPa was achieved when the joint was formed at the temperature of 1450 degrees C and treated at 1050 degrees C for crystallization. Notably, this exceptional mechanical endurance remained impressively high, maintaining a value of 85 MPa at 800 degrees C. Based on density functional theory calculations, it was confirmed that glass/C-SiC (0001) has a stronger interface bond than glass/Si-SiC (0001), resulting in a reliable joining at the glass/C-SiC (0001) interface for CAS glass and SiC.
引用
收藏
页码：40149 / 40157
页数：9
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