Ceramic and metal brazing technology
The brazing technique of ceramic and metal is one of the key technologies for the development and application of metal ceramic materials. Summarizes the difficulties of ceramic/metal brazing, expounds the technical methods of ceramic to metal brazing and its research progress, prospects the application prospect of ceramic to metal brazing technology.
Ceramic material has excellent high temperature resistance, wear resistance, corrosion resistance and low density, good insulation characteristics, in the automotive, military, electronics, aerospace and other fields has a broad application prospect.
However, the characteristics of the ceramic low plasticity, high brittleness on the one hand caused the complicated shape ceramic parts processing molding difficult, decides on the other hand it is used alone in the process of thermal stress resistance and impact load ability is poor. According to the requirement to choose effective connection method, will connect to obtain ceramic and metal ceramic metal composite components, can combine the advantages of both, give full play to the excellent properties of ceramic materials and broaden its application scope. Soldering is one way of connecting metal to ceramics.
Brazing is lower than the parent metal melting point of solder metal materials, will be heated to a temperature higher than the melting point solder, welding and filler metals is lower than the parent metal melting temperature, the use of liquid solder wetting parent metal, fill the joint gap and realize the connection with the parent metal diffusion welding method.
Edited by simuwu
Tags: Ceramic and metal brazing technology