Brazing of silicon nitride ceramic composite to steel using SiC-particle-reinforced active brazing alloy

被引:127
作者
Blugan, Gurdial
Kuebler, Jakob
Bissig, Vinzenz
Janczak-Rusch, Jolanta
机构
[1] Empa, Mat Sci & Technol, Lab High Performance Ceram, CH-8600 Dubendorf, Switzerland
[2] Empa, Mat Sci & Technol, Lab Joining & Interface Technol, CH-8600 Dubendorf, Switzerland
关键词
joining; strength; Si3N4; SiC;
D O I
10.1016/j.ceramint.2006.03.010
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
Silicon carbide particles have been introduced as reinforcements in a commercially available active metal braze filler alloy (Incusil ABA, Wesgo Metals) used for the joining of ceramic-to-metal. The effect of particle reinforcement of the braze filler on the flexural strength of ceramic to metal joints has been investigated at room temperature and at elevated temperatures. An average four point flexural strength of nearly 400 MPa is achieved at room temperature when using Incusil ABA + 30 vol.% SiC (sandwich foil system) compared to 330 MPa with Incusil ABA alone. At a test temperature of 250 degrees C relaxation of residual stresses in the joints results in an average flexural strength of approximately 520 MPa when using Incusil ABA + 10 vol.% SiC. These values compare with an average room temperature flexural strength of nearly 800 MPa for the ceramic composite. The reaction products of the braze alloy at the joint interface were identified by SEM. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:1033 / 1039
页数:7
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