期刊
CERAMICS INTERNATIONAL
卷 35, 期 1, 页码 333-337出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2007.11.007
关键词
Thermal expansion; Al(2)O(3); Laser brazing; Metal-ceramic joining; Bending strength
资金
- Deutsche Forschungsgemeinschaft (DFG)
A laser supported method to join ceramic materials with metals has been studied. Using a CO(2)-laser and an active braze filler material, Al(2)O(3)-ceramics have been brazed to steel. The microstructure of the interface has been examined and also the mechanical strength of the brazed joint using bending tests. Typical processing times are of the order of several minutes, which is faster than furnace brazing. The results of the mechanical tests show that the failure of the brazed metal-ceramic joint occurs within the ceramic close to the interface between the braze filler metal and the ceramic part. Thermally induced stresses may lead to cracks within the ceramic, which initiates the failure under mechanical loading. The typical bending strength varies between 40 and 80 MPa with a Weibull modulus ranging from 4.3 to 6.1. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据