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Missouri University of Science and Technology
<p>Aluminum oxide -- Thermal properties<br />Thermal stresses<br />Porosity</p>
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The Effect Of Porosity On Strength Degradation In Thermally Shocked Alumina, Russell David Smith
The Effect Of Porosity On Strength Degradation In Thermally Shocked Alumina, Russell David Smith
Masters Theses
"Strength degradation and crack propagation in Al2O3 are shown to depend on the initial strength and porosity of the material. Specimens were fabricated containing between 0 and 5% induced cylindrical, two dimensional, and spherical porosity. The strengths of the various porosity samples decreased discontinuously at a critical quenching temperature. No difference was observed in the critical temperature for the various aluminas; initial strength decrease occurred between 165°C and 175°C temperature differential. The strength retained after thermal shock decreased with increasing initial strength. The degree of damage sustained upon shocking was also characterized by crack density and crack …