STRENGTH AND YOUNGS MODULUS BEHAVIOR OF A PARTIALLY SINTERED POROUS ALUMINA

The strength of alumina materials that had been subjected to varying d egrees of densification was determined. Significant increases in stren gth mere obtained for these materials even when there was minimal dens ification. For the most porous materials, the Weibull modulus values w ere similar but showed a significant increase for materials that mere close to the theoretical density. Young's modulus data were found to b e similar to previous work, in that significant increases occur during the initial stage of sintering, showing a strong correlation with the strength data. A simple modification to a previous theory allowed the Young's modulus data to be fitted with excellent accuracy.