Influence of shape and size on residual stress in ceramic/metal joining |
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Authors: | K. Suganuma T. Okamoto M. Koizumi K. Kamachi |
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Affiliation: | (1) The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, 567 Ibaraki, Osaka, Japan;(2) Faculty of Science and Technology, Kinki University, Kowakae 3-4-1, 577 Higashi-Osaka, Osaka, Japan |
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Abstract: | The effects of shape and size on the residual stress on the surfaces of silicon nitride/Invar alloy joints have been examined by means of the strain gauge method. The highest residual stress perpendicular to the interface appeared near the corners in the rectangular bond face joint. It was tensile in the silicon nitride and compressive in the Invar alloy. The highest tensile stress in the rectangular bond face joint was larger than that in the circle bond face joint. The larger the diameter of the cylindrical joint used, the larger was the tensile stress induced. The residual stress parallel to the interface was compressive in silicon nitride while that in the Invar alloy was tensile. |
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