Progress of joining techniques of nonoxide ceramics

Nonoxide ceramics are attractive in high-temperature structure applications, but the poor reliability of joining nonoxide ceramics to themselves or metals limits the applications. The research on joining techniques of nonoxide ceramics has achieved a 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.