Effect of the low constituent boron on martensitic transformation, magnetic, and magnetocaloric properties of Ni50Mn35In15 Heusler alloys

ÇİÇEK M. M., Saritas S., Yildirim O., EMRE Ş. B.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.845, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 845
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.jallcom.2020.155493
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Ankara Üniversitesi Adresli: Evet

Özet

We report the structural, magnetic, and magnetocaloric properties Ni50Mn35-xBxIn15 (x = 1,1.5) Heusler alloys by using room-temperature X-ray diffraction (XRD), differential scanning calorimetry (DSC), and magnetization measurements. The substitution of B instead of Mn decreases the transition temperatures. Moreover, we observe a large magnetization difference between austenite and martensite phases with a thermal hysteresis around the martensitic transition. Magnetic field dependent measurements reveal that the application of a magnetic field stabilizes the austenite phase, which has higher magnetization. We calculate magnetic entropy change by two methods, namely, Maxwell relation and fraction method. We computed a maximum magnetic entropy change of 15 J kg(-1)K(-1) and 8 J kg(-1)K(-1) around magnetostructural phase transition for a magnetic field change of 5 T, respectively, for Ni50Mn34B1In15 and Ni50Mn33.5B1.5In15 samples. (C) 2020 Elsevier B.V. All rights reserved.