熱水溶液からのオルソリン酸塩結晶の合成

概要

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Some orthophosphates have been known to have the polymorphism similar to SiO_2. The low temperature form (Berlinite) has been especially attracted by its superior electrical character to α-quartz. The single crystal of the Berlinite has been synthesized hydrothermally from the higher concentration of phosphoric acid solution, but the highly qualified single crystal has hardly grown. In the present paper, the features of orthophosphate crystals are reviewed and the results for the new processing to prepare the pure AIPO_4 crystal are mentioned. The low temperatrure form of Ga PO_4 could be successfully synthesized by this hydrothermal method, whereas it was found that the stabilization of Fe^8+ as FePO_4 was impossible in the hydrothermal phosphoric acid solution up to 650℃ at 1000 kg/cm^2.
日本結晶成長学会の論文
1985-04-05