Enhanced bonding strength of Al2O3/AlN ceramics joined via glass frit with gradient thermal expansion coefficient

被引：23
|
作者：
Ji, Yanru [1 ]
Fu, Renli [1 ]
Lv, Jinling [1 ]
Zhang, Xinyao [1 ]
Chen, Xudong [1 ]
Li, Guojun [1 ]
Liu, Xuhai [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
[2] Qingdao Univ, Coll Microtechnol & Nanotechnol, Qingdao 266071, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2020年 / 46卷 / 08期
关键词：
Ceramics joining; Gradient-TEC glass frit; Dissimilar ceramics; TEC; FUNCTIONALLY GRADED MATERIAL; MICROSTRUCTURE; ALUMINA;
D O I：
10.1016/j.ceramint.2020.02.050
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：
Ceramics joining has been widely applied in MEMS sensors, microwave and imaging devices as well as other ceramic packaging applications to fabricate multifunctional ceramic components. In this study, a glass frit with gradient thermal expansion coefficient (TEC) has been applied as the bonding material to join the ceramic of Al2O3 and AlN. This glass frit consists of two types of glasses with different TEC. The Al2O3 and AlN ceramics have been successfully joined with this glass frit in muffle furnace at 850 degrees C for 1 h. The bonding strength of Al2O3/AlN ceramic joined via this glass frit exceeds 40 MPa without any cracks in the joining interface, which is much superior compared with that of conventional glass frit bonding. Our work demonstrates that the gradient-TEC glass frit bonding is an effective method to join different types of ceramics.
引用
收藏
页码：12806 / 12811
页数：6
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