1993-10-01

Effect of Contour, Size and Cell Structure on Compressive Strength of Porous Cordierite Ceramic Substrates 932663

Since their introduction to automotive industry in 1975, ceramic substrates have successfully met the strength requirements for canning, engine and chassis vibrations, and thermal shock. This paper will focus on canning loads and techniques, and how they influence the stress distribution in ceramic substrates. The strength data, most relevant to canning stresses, will be presented for porous cordierite ceramic substrates as function of their contour, size and cell structure. Recent improvements in measuring the biaxial compressive strength will also be reviewed.

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