Abstract
A pulsed wire discharge method was used in the synthesis of zirconia-alumina nanocomposite powders by mixing zirconium plasma with aluminum plasma and cooling them together in an oxygen atmosphere. The products formed were characterized by powder X-ray diffractometry, transmission electron microscopy, and Brunauer-Emmet-Teller surface-area analysis. These powders showed a sphere morphology with less agglomeration. Specific surface area of these powders was 25-137 m2 /g depending on the oxygen pressure. Typically, this powder could be densified at 1100 degC, which is important for producing a high-toughness nanocomposite
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