接合体の熱応力の解析(III)

概要

論文の詳細を見る
It is well known that large thermal stress arises in a ceramic-metal joint through thermal expansion mismatch. We have dealt with analytically a "compressive" joint in which thermal expansion coefficient of the ceramic part is smaller than that of the metal part.<BR>In this paper, we apply the theory to other joints composed of three layers with different thermal expansion coefficients. One of them is a ceramic-metal-ceramic joint, and the other is a ceramic-metal-metal joint. The former is prepared by bonding two ceramic rods through a metal layer. The latter is also prepared by placing another metal layer between a ceramic-metal joint to diminish thermal stress. Thermal stress occurring in the ceramic part of the joints is discussed as a function of the interlayer thickness. The result is found in qualitative agreement with a finite element calculation conducted by other authors.
社団法人粉体粉末冶金協会の論文