傾斜組成制御した多層中間層をもつ金属/セラミックス接合体における熱応力の有限要素解析

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タイトル別名
  • Finite Element Analysis of Thermal Stress of the Metal/Ceramic Multi-Layer Composites with Controlled Compositional Gradients
  • ケイシャ ソセイ セイギョシタ タソウ チュウカンソウ オ モツ キンゾク セ

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抄録

The effect of interlayers having controlled compositional gradients on the residual thermal stress distributions of stainless steel/silicon nitride and tungsten/zirconia bondings was studied by the finite element method. A cylindrical model for the sample geometry and stepwise compositional variations in the interlayers were employed for the calculation. The thermal stress distributions were determined under the condition of a temperature difference of 1400 degrees using the elastic constants and the thermal expansion coefficients of the materials involved, assuming their linear dependence on the composition of the interlayer. Marked effect of reducing the thermal stress of the metal/ceramic bonding has been expected by inserting the interlayers with stepwise compositional profiles. The effect of width and compositional graduation fineness, as well as the composition profile, of the interlayers on thermal stress reduction has been demonstrated.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 51 (6), 525-529, 1987

    公益社団法人 日本金属学会

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