Fig. 7: As-grown KTP crystal by hydrothermal method and solubility-temperature curve.
From: Hydrothermal growth of KTiOPO4 crystal for electro-optical application

As-grown KTP crystal in one autoclave a with Φ 60 mm inner diameter; b, c with Φ 90 mm inner diameter in a cycle of growth. d Solubility-temperature curve for KTP in K2HPO4 and KH2PO4 mixed solution in the range from 400 to 550 °C