Author： Hatada Naoyuki
Publisher： Springer Publishing Company
ISSN： 1547-7037
Source： Journal of Phase Equilibria & Diffusion, Vol.34, Iss.3, 2013-06, pp. : 196-201
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The phase equilibria between the solid phases in the La2O3-P2O5 system were reinvestigated with solid state reaction method. The existence of La3PO7, La7P3O18, LaPO4, and LaP3O9 was confirmed. La7P3O18 can form only at ~1200 °C or higher possibly due to kinetic reasons, but it is stable at lower temperatures. On the other hand, three intermediate compounds proposed to exist, La5PO10, La4(P2O7)3, and La2P4O13 were not obtained in this study. Based on the literature, La4(P2O7)3 and La2P4O13 are considered to be metastable phases, although thermodynamic evidence is still required.
Related content
Access to resources
Recommend
