Tuning of the magneto-caloric effects in Ni<sub>43</sub>Mn<sub>46</sub>In<sub>11</sub> magnetic shape memory alloys by substitution of boron

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Saritas S., ÇİÇEK M. M., KAVAK E., Gurpinar K., Yildirim O., Yuce S., ...More

JOURNAL OF PHYSICS-CONDENSED MATTER, no.7, 2024 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2024
  • Doi Number: 10.1088/1361-648x/ad0a13
  • Journal Name: JOURNAL OF PHYSICS-CONDENSED MATTER
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, MEDLINE, Metadex, DIALNET, Civil Engineering Abstracts
  • Open Archive Collection: AVESIS Open Access Collection
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

In this study, we report the structural, magnetic, and magnetocaloric properties of B substitution on the Mn site in Ni43Mn46-xBxIn11(x = 0.5, 1.0) Heusler alloys. Crystal structure analysis using room-temperature x-ray diffraction data reveals both samples have mixed phases composed of cubic and tetragonal phases. The structural and magnetic phase transition characteristic temperatures are determined using differential scanning calorimetry, isothermal magnetization (MT), and isofield magnetization (MH) measurements. Both alloys exhibit inverse and direct magnetocaloric effects in the vicinity of their magnetostructural transition and Curie temperature (T-C), respectively. For Ni43Mn45.0B1.0In11 a maximum magnetic entropy change of 25.06 J kg(-1) K-1 is observed at 250 K for a magnetic field change of 5 T.