Abstract
The system BaTiO3–CaTiO3 was investigated from room temperature to 1900°C. by several different techniques. The system is characterized by extensive solid solution with a minimum at 18 wt.% CaTiO3. The extent of solid solution decreases rapidly with temperature from a maximum of approximately 30 wt.% in each end member at 1595°C. The temperature of the cubic‐hexagonal inversion in BaTiO3 is raised very rapidly with additions of CaTiO3. The tetragonal‐cubic inversion in BaTiO3 is lowered slightly to a minimum of 105°C. by the additions of CaTiO3. Within a wide composition region crystals of cubic BaTiO3 solid solution may be grown directly from the melt, and at the minimum from a melt of the same composition.
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