The specific gravity of al2o3 is 396 gcm3 a ceramic part


1. What typical density levels are obtained in sintered ceramics?

2. What do the terms ‘‘apparent porosity'' and ‘‘true porosity'' of ceramics mean?

3. The specific gravity of Al2O3 is 3.96 g/cm3. A ceramic part is produced by sintering alumina powder. It weighs 80 g when dry, 92 g after it has soaked in water, and 58 g when suspended in water. Calculate the apparent porosity, the true porosity, and the closed pores.

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Mechanical Engineering: The specific gravity of al2o3 is 396 gcm3 a ceramic part
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