Effects of CuO on constrained sintering of a polycrystalline TiO₂ ceramics

Effects of CuO on constrained sintering of a polycrystalline TiO 2 ceramics have been investigated. The densification temperature of TiO 2 is reduced from 1100‐1200°C for pure TiO 2 to 900°C with the presence of 0.5‐3 mol% CuO under free sintering. For the samples with 1 mol% CuO, the constrained densification is slowed down, but a high sintered density of >95% at 950°C, which is close to that sintered freely, is still obtained. The above...