504 超塑性セラミックスをインサートに用いるセラミックスと金属の接合に関する研究

概要

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A solid state bonding method between ceramics and metals using superplastic ceramics as interlayer-materials has been developed. Polycrystalline Al_2O_3 was used as ceramics parts to be bonded, Ti-6Al-4V as metals parts, and 3YTZP, 3Y20A, 3Y40A, 3Y60A as superplastic ceramic interlayer-materials. The superplastic flow, that arises at temperatures of about half of the melting point with low applied stresses of the inserted ceramics was applied for the bonding process. The bonding experiments were carried out with interlayer thickness, and different interlayer materials as bonding parameters, and there appropriate bonding parameters were discussed. A jointed-material having a good bonding microstructure was obtained for Al_2O_3/Ti-6Al-4V by using 3Y20A, 3Y40A superplastic ceramic interlayer-materials.
2003-09-19