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Microstructure and magnetocaloric effect of melt-spun Ni52Mn26Ga22 ribbon
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10.1063/1.4704780
/content/aip/journal/apl/100/17/10.1063/1.4704780
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/17/10.1063/1.4704780

Figures

Image of FIG. 1.
FIG. 1.

(a) BSE image of the ribbon plane after electrolytic polishing. (b) Secondary electron image of the cross section. (c) Orientation map showing four types of martensitic variants A, B, C, and D on the ribbon plane.

Image of FIG. 2.
FIG. 2.

(a) Heating and cooling DSC curves (upper) and thermal dependence of magnetization M(T) at 5 mT (lower). The vertical dashed lines correlate the start and finish phase transition temperatures (determined from the DSC scans) with the features of the low-field M(T) curves. (b) Isothermal magnetization curves M(H) in the temperature range from 250 to 400 K. (c) Temperature dependence of magnetic entropy change ΔSM (T) at a magnetic field of 2 T and 5 T. The inset shows the field dependence of absolute maximum magnetic entropy change.

Image of FIG. 3.
FIG. 3.

(a) Field-up and field-down isothermal magnetization curves. (b) Hysteresis losses at 5 T as a function of temperature across the martensite-to-austenite transformation.

Tables

Generic image for table
Table I.

Twinning elements of incommensurate 7M martensite in Ni52Mn26Ga22 ribbons.

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/content/aip/journal/apl/100/17/10.1063/1.4704780
2012-04-27
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Microstructure and magnetocaloric effect of melt-spun Ni52Mn26Ga22 ribbon
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/17/10.1063/1.4704780
10.1063/1.4704780
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