Kamantsev Alexander P., Koledov Victor V., Mashirov Alexey V., Dilmieva Elvina T., Shavrov Vladimir G., Cwik Jacek, Tereshina Irina S. Magnetocaloric Effect of Gadolinium at Adiabatic and Quasi-Isothermal Conditions in High Magnetic Fields. Solid State Phenomena , 2015 , 233-23. С. 216-219. ISSN 1662-9779
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Текст
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Аннотация
High cooling power of magnetocaloric refrigeration can be achieved only at large amounts of heat, which can be transferred in one cycle from cold end to hot end at quasi-isothermal conditions. The simple experimental method for direct measurement of the transferred heat from material with magnetocaloric effect (MCE) to massive nonmagnetic block at quasi-isothermal conditions was proposed. The vacuum calorimeter was designed for the simultaneous measurements of MCE both at adiabatic conditions (ΔT) and quasi-isothermal conditions (ΔQ) in the magnetic fields of Bitter coil magnet. This calorimeter was tested on samples of pure polycrystalline Gd with direct MCE. The maximal obtained values were ΔT = 17.7 K and ΔQ = 5900 J/kg at initial temperature 20 0C in magnetic field 140 kOe.
| Тип объекта: | Статья |
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| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Александр П. Каманцев, Виктор В. Коледов, Алексей В. Маширов, Эльвина Т. Дильмиева, Владимир Г. Шавров, Яцек Цвик, Ирина С. Терешина |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 192 лаб. магнитных явлений в микроэлектронике |
| URI: | http://cplire.ru:8080/id/eprint/1658 |
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