2002 年 10 巻 1 号 p. 81-87
Electrical Sialons which have some TiN contents were joined with Ag-Cu-Ti active brazing metal layerhaving a thickness from 30μm to 400μm at a temperature from 1113 K to 1213 K in a vacuum. Residualstress in the brazed joint specimens was not observed when the thickness of brazing metal layer was 30μm. However, the residual stress of 80 MPa was detected when the thickness of brazing metal layerincreased up to 400ktm. When the brazing temperature was 1113 K, four-point bending strengths of 520MPa and 310 MPa were obtained for the brazed joint specimens with the thicknesses of brazing metal layerof 30μm and 400μm, respectively. While the four-point bending strength increased as the brazing temperaturewas raised. The maximum value of the four-point bending strength was about 700 MPa which was obtainedat a condition of the brazing metal thickness of 30μm and the brazing temperature above 1163 K.However, the four-point bending strength decreased with increasing the bending test temperature. A remarkabledecrease of the bending strength was observed at the test temperature of 873 K, in which the bendingstrength was 300 MPa.
