Abstract:In this work, the mechanical properties of SiC samples with (5 wt%) alumina and (5
wt%) rare earth oxides (REO) additions were investigated at room and high temperatures. The
possibility of using REO instead of pure yttria could bring cost reductions to obtain sintered SiC
ceramics. The powders were mixed, milled, sieved and hot-pressed at 1800°C in argon atmosphere.
Hardness and fracture toughness were evaluated at room temperature. The compressive creep
behavior was carried out under stress range from 150 to… Show more
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