Conferences

Interaction of the lanthana with ytterbia at temperature 1500 °C

O.V.Chudinovych,
 
O.Andrijevska,
 
J.D. Bogatyryova,
 
L.N.Spasyonova
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Modern Problems in Physical Materials Science - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #23
http://www.materials.kiev.ua/article/1755

Abstract

Phase equilibria in the binary La2O3―Yb2O3 system at 1500 °C were studied by X-ray diffraction and petrography in the overall concentration range. The samples of different compositions have been prepared from nitrate acid solutions by evaporation, drying, and calcinations at 1100 and 1500 ºC. The solid solutions based on various polymorphous forms of constituent phases and ordered phase of LaYbO3 were revealed in the system. The boundaries of mutual solubility and concentration dependences the lattice parameters for all phases have been determined.


FUNCTIONAL MATERIALS, LANTHANA, YTTERBIA, LATTICE PARAMETERS OF THE UNIT CELLS, PHASE DIAGRAMS, PHASE EQUILIBRIA, SOLID SOLUTIONS