PURPOSE: To join securely a metallic member and ceramic member by a simple method by interposing a brazing material formed by adding an active metal at a specific rate to a compd. composed of copper and silver at a specified rate between both members and subjecting the members to heating and joining without pressure within a specified temp. range.
CONSTITUTION: A brazing material contg. 0.1W2wt% at least one kind of Ti and Zr as an active element and consisting of 10W49.9wt% Cu and 50W89.9wt% Ag is interposed between a metallic material and a ceramic member. Such superposed material is heated within a temp. range of 780W900°C without pressing by which the materials are brazed. Brazing is made securer by incorporating the active element into the brazing material compounded with Cu-Ag having good wettable joining property in this method and therefore there is no generation of a crack in the joining material owing to the thermal impact and the securely joined material which withstands practicable service temp. is obtd.
SHIROKANE MAKOTO
YAMAZAKI TATSUO
YOSHINO HISASHI
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