Abstract
Ceramics in the Al2O3-WO3 system have been produced by laser irradiation. Examination of the products by scanning electron microscopy showed that a cell structure had formed in the specimens. A comparison of the properties of the samples synthesized by laser and by conventional sintering methods showed that the laser technique can produce new materials with some unique properties such as the linear decrease in resistivity of Al2O3-50 mol % WO3 specimens with increasing temperature over the range of 10–150 °C. X-ray photographic powder analysis indicated that the conducting phase in the specimen is a nonequilibrium product: AlxWO3 tungsten bronze.
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