- Tytuł:
- Magnetocaloric Effect in Materials with the First Order Transitions - Direct Measurements
- Autorzy:
-
Kamarád, J.
Kaštil, J.
Arnold, Z.
Javorský, P.
Sechovský, V. - Powiązania:
- https://bibliotekanauki.pl/articles/1535138.pdf
- Data publikacji:
- 2010-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.30.Sg
75.30.Kz
75.50.Cc - Opis:
- The results of direct measurements of the magneto-caloric characteristics Δ $T_{ad}$ and the indirect determination of Δ $S_{m}$ of pure Gd around the Curie temperature and of the $FeMnP_{0.45}As_{0.55}$ and $Ni_{45}Co_5Mn_{31}Ga_{19}$ intermetallics in the vicinity of the first order magnetic and structural phase transitions are presented and discussed. A pronounced temperature and field dependence of the first order transitions in the studied materials manifests restrictions applying these materials in magnetic refrigeration techniques. An effective use of the Ericsson and the Brayton refrigeration cycles with $FeMnP_{0.45}As_{0.55}$ in the role of a refrigerant is discussed.
- Źródło:
-
Acta Physica Polonica A; 2010, 118, 5; 1000-1001
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki