Effects of the Brazing Bonding between Al 2 O 3 and STS304 with an Ion Beams

Abstract Using a surface modification technique, ion beam assisted deposition (IBAD) of Ti thin film it becomes possible to prepare an active ceramic surface to braze Al 2 O 3 -STS304 with conventional Ag-Cu eutectic compositionfiller metal. Researches on bonding formations at interfaces of ceramic joints were mainly related on the developmentof filler metals to ceramic, the process parameters, and clarifications of reaction products. From the results, the reactive brazing is a very convenient technique compared to the conventional Mn-Mo method. However melting pointof reactive filler is still higher than that of Ag-Cu eutectic and it forms the brittle inter metallic compound. Recently several new approaches are introduced to overcome the main shortcomings of the reactive metal brazing in ceramic-metal, metal vapor vacuum arc ion source was introduced to implant the reactive element directly into the ceramics surface, and sputter deposition with sputter etching for the deposition of active material.