Young Jo Park, Manabu Enoki,Tadatomo Suga and Teruo Kishi
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904
The effect of plasticity of Al on the bonded area fraction of Al/Sapphire bulk joint fabricated by SAB(surface activated room temperature bonding) was investigated. It is already known that the mechanical properties of bonded materials, such as fracture behavior and fracture energy, depend on the bonded area fraction to a great extent. In this research, specimens having different bonded area fraction were made by controlling bonding pressure and time. Because plastic deformation plays a dominant role in SAB, the bonded area fraction was simulated by FEM with different material properties and surface morphology. The simulation results showed a good agreement with the measured values.
(Received May 24, 1999; In Final Form August 27, 1999)
surface activated bonding, plastic deformation, bonded area fraction
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