350 rub
Journal Nonlinear World №1 for 2016 г.
Article in number:
In-situ research martensitic transformation in Ni<sub>2.16</sub>Mn<sub>0.84</sub>Ga Неusler alloy in strong magnetic fields
Keywords:
martensitic transformation
in-situ measurements
Bitter magnet
optical microscope
the direct method
Heusler alloys
thermoelastic martensitic transition
ferromagnetism
martensitic twins
magnetocaloric effect
Authors:
E.T. Dilmieva - Post-graduate Student, Bauman MSTU. E-mail: kelvit@mail.ru
A.P. Kamantsev - Post-graduate Student, Kotelnikov IRE RAS (Moscow)
A.V. Mashirov - Trainee Researcher, Kotelnikov IRE RAS (Moscow)
V.V. Koledov - Dr.Sc. (Phys.-Math.), Leading Researcher, Kotelnikov IRE RAS (Moscow)
Abstract:
Thermoelastic martensitic transformation in Ni2.16Mn0.84Ga alloy under the influence of a magnetic field and temperature is investi-gated by means of original installation (optical microscope). Different deposits to change of temperature of a sample under the influence of a magnetic field are shown: to Hcr - direct magnetocaloric effect (MCE) due to streamlining of magnetic spin, after Hcr - giant MCE (transition to a low-symmetric structural phase and streamlining of magnetic spin). The qualitative explanation of observed effects is offered.
Pages: 23-25
References
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