IEEE transactions on magnetics, 2008-11, Vol.44 (11), p.2993-2996
2008
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- Magnetocaloric Effect in Ni-Mn-Ga Alloys
- Ist Teil von
- IEEE transactions on magnetics, 2008-11, Vol.44 (11), p.2993-2996
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2008
- Quelle
- IEEE Electronic Library Online
- Beschreibungen/Notizen
- Heusler alloys with nickel rich nominal composition Ni2+xMn1-xGa (x = 0.16 - 0.26) were prepared by arc-melting and subsequent homogenization by annealing. A large magnetic entropy change around room temperature was observed in the alloy where martensite-austenite structural and ferro-para magnetic transition temperatures almost coincide with each other. It also shows large hysteresis in the magnetization isothermals. A sharp peak in the specific heat versus temperature curve indicates a first-order transition at the temperature of large entropy change.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0018-9464eISSN: 1941-0069DOI: 10.1109/TMAG.2008.2002481Titel-ID: cdi_ieee_primary_4717517
- Format
- –
- Schlagworte
- Alloys, Annealing, Austenite phase, Cross-disciplinary physics: materials science, rheology, Digital alloys, Entropy, Exact sciences and technology, Heusler alloys, Homogenizing, Hysteresis, Magnetic properties, Magnetic transitions, Magnetism, Magnetization, magnetocaloric effect, Manganese alloys, martensite phase, Materials science, Nickel alloys, Nickel base alloys, Other topics in materials science, Paramagnetic materials, Physics, Plasma temperature, Refrigeration