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Effects of the Brazing Bonding between Al2O3 and STS304 with an Ion Beams

이온빔을 이용한 STS304와 알루미나 브레이징 접합효과

  • Received : 2015.10.23
  • Accepted : 2015.12.04
  • Published : 2015.12.31

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 $Al_2O_3$-STS304 with conventional Ag-Cu eutectic composition filler metal. Researches on bonding formations at interfaces of ceramic joints were mainly related on the development of 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 point of 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.

Keywords

Brazing;Ceramic;Ion-beam Assisted Deposition;Ion Source;Interface structure

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