Superplasticity of AZ31 Mg alloy at the temperature range of 250~450℃ and stain rate range of 0.7x10-3~ 1.4x 10-1 s-1 was examined through uniaxial tensile test.
Comparison between filter pressing and isostatic pressing for submicrometer alumina powder has been systematically made. Obvious improvements in true porosity,