JOINED PRODUCT OF DIFFERENT KINDS OF MATERIALS AND ITS PRODUCING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a joined product of different kinds of materials having airtightness at the joint, having an excellent thermal cycle property and a thermal shock property and which can be used in a high temperature region and to provide its producing method. SOLUTION: The joined product of different kinds of materials is produced by joining a ceramic substrate 1 and a metallic material 7 with a brazing filler metal 5 of Au. The brazing filler metal 5 is placed on a joining face 9 at the ceramic substrate 1 sandwiching a specified active metal layer 4 or a metallized layer. A precoat layer 6 adhering to the joining face 9 with the molten brazing filler metal 5 is formed. The metallic material 7 is placed on the surface of the precoat layer 6 sandwiching a barrier layer 8 having a specified function and then the ceramic substrate 1 and the metallic material 7 are joined by forming the joint solidified after the precoat layer 6 is melted at a specified temperature. COPYRIGHT: (C)2004,JPO&NCIPI