Phase equilibria in the partial system CePO4-K4P2O7-KPO3

摘要

The CePO4-K4P2O7-KPO3 portion of the oxide Ce2O3-K2O-P2O5 system has been investigated using thermoanalytical methods, powder X-ray diffraction, XPS and IR spectroscopy. The phase diagram with liquidus isotherms and isothermal section at room temperature of the system CePO4-K4P2O7-KPO3 has been determined. One section, CePO4-K5P3O10, which is quasi-binary only in the subsolidus region (below 560 degrees C), have been found. The system contains one double phosphate K4Ce2P4O15, which exists only in solid state, below 880 degrees C. (c) 2005 Elsevier SAS. All rights reserved.