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J. Korean Ceram. Soc. > Volume 33(2); 1996 > Article
Journal of the Korean Ceramic Society 1996;33(2): 127.
다층중간재를 사용한 질화규소/스테인레스 강 접합체의 잔류응력 해석 및 기계적 특성
박상환, 김태우1, 최영화2
한국과학기술원 세라믹스연구부
1국민대학교 기계공학과
2한국과학기술연구원 세라믹스연구부
FEM Residual Stress Analysis and Mechanical Properties of Silicon Nitride/Stainless Steel Joint with Multi-Interlayer
The thermal residual stresses were estimated for brazed Si3N4/S.S.316 joints with Cu/Mo multi-interlayers using FEM, and their bending strengths at room temperature were measured for various interlayer configura-tions. The Cu, Mo multi-interlayer decreased the maximum residual stress in Si3N4 and caused the residual stress redistribution rsulting in the high residual stress at Mo interlayer. The stress distribution in the joints as well as the maximum residual stress in silicon nitride were found to be main factors for determining bending strengths and Weibull modulous of the joints. The bending strength of the brazed Si3N4/S.S.316 joints with specific Cu, Mo multi-interlayer system were found to be above 400 MPa.
Key words: Ceramic-metal joining, Brazxing, Residual stress, Joint strength, Multi-interlayer
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