Optical imaging and magnetocaloric effect measurements in pulsed high magnetic fields and their application to Ni–Co–Mn–In Heusler alloy
T Kihara, I Katakura, M Tokunaga, A Matsuo… - Journal of Alloys and …, 2013 - Elsevier
Journal of Alloys and Compounds, 2013•Elsevier
As novel tools to study magnetic shape memory alloys, a high-speed optical microscope
system and a measurement system of magnetocaloric effects (MCEs) in pulsed magnetic
fields are developed. Using the high-speed imaging system, successive changes in the
surface morphology are visualized in the process of magnetic field-induced reverse
martensitic transformation in Ni 45 Co 5 Mn 36.7 In 13.3. The MCEs of Gd studied in pulsed
fields show reasonable agreement with the earlier results obtained in steady fields …
system and a measurement system of magnetocaloric effects (MCEs) in pulsed magnetic
fields are developed. Using the high-speed imaging system, successive changes in the
surface morphology are visualized in the process of magnetic field-induced reverse
martensitic transformation in Ni 45 Co 5 Mn 36.7 In 13.3. The MCEs of Gd studied in pulsed
fields show reasonable agreement with the earlier results obtained in steady fields …
Abstract
As novel tools to study magnetic shape memory alloys, a high-speed optical microscope system and a measurement system of magnetocaloric effects (MCEs) in pulsed magnetic fields are developed. Using the high-speed imaging system, successive changes in the surface morphology are visualized in the process of magnetic field-induced reverse martensitic transformation in Ni45Co5Mn36.7In13.3. The MCEs of Gd studied in pulsed fields show reasonable agreement with the earlier results obtained in steady fields. Application of high magnetic fields up to 55 T realizes a gigantic adiabatic heating of 63 K.
Elsevier
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