Preparation, Thermal Diffusivity, and Thermal Conductivity of Phosphate Ceramics with the Tridymite Structure

Аннотация

We have synthesized powders of the CsM^IIPO₄ (M^II = Mg, Mn, Co) phosphates with the β-tridymite structure. Phosphate ceramics were produced by conventional cold pressing with inorganic sintering aids, followed by programmed annealing, and by an innovative method: high-speed spark plasma sintering. The thermal diffusivity and thermal conductivity (0.3–0.4 W/(m K)) of the CsM^IIPO₄ ceramics indicate that they are heat insulators with a high working temperature.