非氧化物陶瓷连接技术的进展

PROGRESSES OF JOINING TECHNIQUES OF NONOXIDE CERAMICS

非氧化物陶瓷作为高温结构材料其应用前景非常广阔 ,但非氧化物陶瓷自身及其与金属的连接问题制约了它的工程使用 .与氧化物陶瓷连接相比 ,非氧化物陶瓷的连接目前基本上处于基础性研究和实验室研究阶段 .本文概述了近些年用于非氧化物陶瓷连接的几种方法及其工艺特点 ,其中包括 :活性金属钎焊法、热压扩散连接法、过渡液相连接法、反应成形连接法、自蔓延高温合成 (SHS)焊接法、热压反应烧结连接法和直接敷铜 (DBC)

Nonoxide ceramics are attractive in high_temperature structure applications, but the poor reliability of joining nonoxide ceramics to themselves or to metals limits the applications. Research on joining nonoxide ceramics has achieved remarkable progress. This paper summarizes several processes developed in recent years, such as active metal brazing, hot_pressing diffusion joining, partial transient liquid phase bonding, reaction forming approach, SHS (self_propagating high_temperature synthesis) joining, hot_pressing reaction joining and direct bonded copper method.