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Calorimetric study of ytterbium orthovanadate YbVO4 polycrystalline ceramics |
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| Authors: | O.N. Kondrat&#x eva,G.E. Nikiforova,A.V. Tyurin,M.A. Ryumin,V.M. Gurevich,A.P. Kritskaya,K.S. Gavrichev |
| Affiliation: | 1. Kurnakov Institute of General and Inorganic Chemistry of RAS, Moscow 119991 Russia;2. Vernadsky Institute of Geochemistry and Analytical Chemistry of RAS, Moscow 119991 Russia |
| Abstract: | The heat capacity of ytterbium orthovanadate was first measured by adiabatic calorimetry in the temperature range T?=?12.28–344.06?K. No obvious anomalies were observed on the curve obtained. The values of standard thermodynamic functions in the temperature range T?=?0–400 K were calculated. Based on low-temperature calorimetry data obtained, previously published data on the high-temperature heat capacity of ytterbium orthovanadate were corrected. The anomalous contribution to heat capacity for YbVO4 was compared with the data known for YbPO4. |
| Keywords: | A. Powders: solid state reaction C. Thermal properties E. Functional applications Rare earth orthovanadates |
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