PUMA
Istituto dei materiali per l'elettronica ed il magnetismo     
Costa G., Artini C., Ubaldini A., Carnasciali M., Mele P., Masini R. Phase stability study of the pseudobinary system Gd2O3-Nd2O3 ( T ≙1350°C). In: Journal of Thermal Analysis and Calorimetry, vol. 92 (1) pp. 101 - 104. Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V, 2008.
 
 
Abstract
(English)
The phase stability of the system Gd2O3-Nd2O3 up to 1350°C was studied. Mixed oxides were synthesized by coprecipitation of mixed oxalates. Depending on the thermal treatment, three possible structures of the oxides, namely the A (hexagonal, P63/mmm), B (monoclinic, C2/m) and C (cubic, Ia3) forms, were obtained. Below 1300°C the system Gd2O3-Nd2O3 shows three monophasic (A, B and C phase) and three biphasic regions (A+B, B+C and A+C phase). Below 550°C the C phase is stable over the whole composition range. A validation procedure for the existence of the C phase in pure Nd2O3 was also set up.
DOI: 10.1007/s10973-007-8744-x
Subject rare earths
thermal decomposition


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