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Tuning sign and intensity of magnetocaloric effect by Co doping NiMnGa alloys.
Author(s) : FABBRICI S., KAMARAD J., ARNOLD Z., et al.
Summary
The authors studied the composition dependence of the critical temperatures and of the magnetocaloric properties of Co doped NiMnGa alloys around the Mn-rich composition Ni(50)Mn(30)Ga(20). By varying the Co and Mn content they have been able to tune the critical temperatures and to obtain a complete reverse martensitic transformation between paramagnetic martensitic and ferromagnetic austenite. Unlike the Co-free alloys, high values of inverse magnetocaloric effect are associated to such a reverse transformation. The possibility to change the sign of the magnetocaloric effect by stoichiometric control of NiCoMnGa makes these materials interesting for magnetic refrigeration applications.
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Details
- Original title: Tuning sign and intensity of magnetocaloric effect by Co doping NiMnGa alloys.
- Record ID : 2011-0173
- Languages: English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Publication date: 2010/08/23
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Indexing
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Themes:
Thermodynamic measurements;
Heat transfer;
Mass transfer;
Domestic applications (refrigerators, freezers);
Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling) - Keywords: Composite; Magnetic refrigerator; Magnetocaloric cooling; Critical temperature; Alloy; Magnetic property; Material; Magnetocaloric effect; Cobalt
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Neutron diffraction and magnetocaloric effect s...
- Author(s) : CHAJEC W., FRUCHART D., ZACH R., et al.
- Date : 2010/08/23
- Languages : English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Formats : PDF
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The crystal structure and structural phase tran...
- Author(s) : TANG Y. B., ZHANG T. B., CHEN Y. G., et al.
- Date : 2010/08/23
- Languages : English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Formats : PDF
View record
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Magnetic phase transition and magnetic entropy ...
- Author(s) : XIE K., SONG X. P.
- Date : 2010/08/23
- Languages : English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Formats : PDF
View record
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Magnetocaloric properties of Mn(2-x)Fe(x)P(0.51...
- Author(s) : GENG Y. X., TEGUS O., BILIGE Q., et al.
- Date : 2010/08/23
- Languages : English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Formats : PDF
View record
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Magnetocaloric effect of La(0.9)Ce(0.2)Fe(11-x)...
- Author(s) : YIBOLE H., SONG L., MENDE B., et al.
- Date : 2010/08/23
- Languages : English
- Source: 4th International Conference on Magnetic Refrigeration at Room Temperature (Thermag IV). Proceedings: Baotou, China, August 23-27, 2010.
- Formats : PDF
View record