Eulytite-Type Solid Solution in the LaPO4 – Ba3(PO4)2 System

Aleksandra Pelczarska , Ewa Radomińska , Teresa Znamierowska

Abstract

Studies of phase equilibria in the LaPO4eBa3(PO4)2 system were carried out in the whole concentration range in temperature scope up to 1950 �C using TGA/DSC, XRD and reflected light microscopy. Analysis of the results allowed to determine the phase relationships in the system. In the LaPO4eBa3(PO4)2 system, there is an intermediate compound Ba3La(PO4)3 that divides the studied concentration range into two partial systems: LaPO4eBa3La(PO4)3 and Ba3La(PO4)3eBa3(PO4)2. They both have a eutectic character. Ba3La(PO4)3 is a thermodynamically stable phosphate at room temperature. At high temperature it forms a limited solid solution with Ba3(PO4)2. At 1450 �C, the maximum solubility of Ba3(PO4)2 in Ba3La(PO4)3 corresponds to phase of the Ba3.66La0.34(PO4)2.78 composition.
Author Aleksandra Pelczarska (PE / DNCh)
Aleksandra Pelczarska,,
- Department of Inorganic Chemistry
, Ewa Radomińska (PE / DNCh)
Ewa Radomińska,,
- Department of Inorganic Chemistry
, Teresa Znamierowska (EaE / IChaFT / DNCh)
Teresa Znamierowska,,
- Department of Non-organic Chemistry
Journal seriesJournal of Alloys and Compounds, ISSN 0925-8388, e-ISSN 1873-4669, (N/A 100 pkt)
Issue year2020
Vol822
Pages1-7
Keywords in EnglishRare Earth Alloys and Compounds, Phase Diagrams, Thermal Analysis, Solid Solution, Phosphates
ASJC Classification2210 Mechanical Engineering; 2211 Mechanics of Materials; 2505 Materials Chemistry; 2506 Metals and Alloys
DOIDOI:10.1016/j.jallcom.2019.153550
URL https://www.sciencedirect.com/science/article/pii/S0925838819347966
Languageen angielski
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Pelczarska_Radominska_Znamierowska_Eulytite_Type_Solid_Solution.pdf 1,72 MB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.386; WoS Impact Factor: 2018 = 4.175 (2) - 2018=3.624 (5)
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