Gandhi, AS and Jayaram, V and Chokshi, AH (1997) Phase evolution and densification of spray pyrolysed ZrO2-Al2O3 powders. In: Materials Science Forum, 243 . 227-232 .Full text not available from this repository.
Devitrification of spray pyrolysed, amorphous ZrO2-Al2O3 solid solution produces nanocrystalline microstructures (grain sizes 10-20 nm). In this study, spray pyrolysed amorphous ZrO2-40 mol% Al2O3 powder displayed good sinterability during decomposition, after spraying, of the nitrate precursors up to 1023K. Hot pressing of fully pyrolysed, pre-sintered (more than 70% dense) pellets at 923K and 750 MPa produced an amorphous pellet with less than 2% porosity. The results indicate the possibility of producing dense, amorphous pellets that can be heat treated further to produce nanocrystalline microstructures conducive for superplasticity.
|Item Type:||Editorials/Short Communications|
|Additional Information:||Copyright of this article belongs to Trans Tech Publications Inc.|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||02 Jul 2011 06:52|
|Last Modified:||02 Jul 2011 06:52|
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