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A range of silica-doped alumina ceramics with addition of 0, 0.5, 1, 5 and 10wt.% of SiO 2 was prepared by hot pressing at 1450°C. Controlled grain growth was achieved by high temperature annealing of hot pressed specimens at 1600°C. Resistance against wet abrasive wear was tested using custom-built sample holder on a standard grinder/polisher machine. The wear rates increased with increasing...
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