期刊
PHYSICS OF THE SOLID STATE
卷 52, 期 2, 页码 377-383出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063783410020253
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资金
- Siberian Branch of the Russian Academy of Sciences [34]
- Russian Foundation for Basic Research
- Krasnoyarsk Regional Scientific Foundation [09-02-98001]
- President of the Russian Federation [NSh-1011.2008.2]
The barocaloric effect (BCE) in the oxyfluoride Rb2KTiOF5 has been studied in the vicinity of the structural phase transition at a temperature of 215 K in the pressure range 0-0.6 GPa. It has been established that the extensive and intensive barocaloric effects are Delta S-BCE similar to -46 J/kg K and Delta T (AD) similar to 18 K, respectively, over a wide temperature range 215-280 K. The studies performed have shown that the external hydrostatic pressure is a very effective tool for changing the entropy and temperature of the crystals which undergo structural phase transitions accompanied by a large change in the entropy.
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