MAGNETOCALORIC EFFECT AROUND CURIE TEMPERATURE IN Ni50-x CuxMn38Sn12B3 SHAPE MEMORY RIBBONS
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Tarih
2019
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info:eu-repo/semantics/openAccess
Özet
Abstract: The magnetocaloric effect in Ni50-xCuxMn38Sn12B3 ribbons depending on the Cu substitution (x= 0, 1, 3) was investigated around the Curie temperature. The purpose of the present study was to analyze the magnetocaloric effect around a second order phase transition (around the Curie temperature) which has a smaller thermal hysteresis compared to a first order phase transition (Martensitic transition). The Curie temperature of the ribbons shifted to higher temperatures with increasing Cu content. A conventional magnetocaloric effect (MCE) was observed around the Curie temperature when the ribbons are subjected to a magnetic field change of 5 T. The magnetic entropy changes were calculated based on the isothermal magnetization M(H) data using thermodynamic Maxwell equation. The highest magnetic entropy change and the refrigerant capacity was obtained for the x=1 ribbon.
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Kaynak
Communications Faculty of Sciences University of Ankara Series A2-A3: Physical Sciences and Engineering
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Scopus Q Değeri
Cilt
61
Sayı
2
Künye
KIZILASLAN O (2019). MAGNETOCALORIC EFFECT AROUND CURIE TEMPERATURE IN Ni50-x CuxMn38Sn12B3 SHAPE MEMORY RIBBONS. Communications Faculty of Sciences University of Ankara Series A2-A3: Physical Sciences and Engineering, 61(2), 150 - 160. Doi: 10.33769/aupse.532422
