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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2024, № 4 · RADIO ELECTRONICS RELATED PROBLEMS

High-temperature treatment of functional Heusler alloy Ni46Mn41In13 thin foils for microsystem devices and electronics

D.D. Kuznetsov1, E.I. Kuznetsova2, D.V. Danilov3, I.I. Musabirov4, A.V. Prokunin1, V.V. Koledov1, V.G. Shavrov1

1 Kotelnikov IRE RAS, Moscow, Russia
2 M.N. Mikheev Institute of Metal Physics of Ural Branch RAS, Ekaterinburg, Russia
3 IRC for Nanotechnology of the Science Park of St. Petersburg State University, Russia
4 Institute for Metals Superplasticity Problems RAS, Ufa, Russia
Full text DOI: 10.30898/1684-1719.2024.4.9 EDN PJNFTA

Abstract

In this study, the high-temperature transformation in a thin foil of non-stoichiometric Heusler alloy based on Ni-Mn-In is investigated using in-situ TEM. The highly ordered cubic L21 phase undergoes decomposition upon heating, forming a phase with a composition close to Ni75Mn25, which is identified as disordered FCC-Ni3Mn and secondary phases, mainly manganese oxides and sulfides. All phases formed upon heating to a temperature of 1173 K are preserved during the in-situ cooling experiment to a temperature of 123 K.

  • phase transformation
  • phase stability
  • size effects
Аннотация (на русском)

Высокотемпературная обработка тонких фольг функционального сплава Гейслера Ni46Mn41In13 для микросистемных устройств и электроники

В работе исследуется высокотемпературное превращение в тонкой фольге нестехиометрического сплава Гейслера на основе Ni-Mn-In. Высокоупорядоченная кубическая L21 фаза подвергается при нагревании разложению с образованием фазы с составом, близким к Ni75Mn25, которая идентифицирована как неупорядоченная ГЦК-Ni3Mn и вторичных фаз, в основном, оксидов и сульфидов марганца. Все фазы, формирующиеся при нагревании до температуры 1173 К, сохраняются в ходе эксперимента по охлаждению in-situ до температуры 123 К.

For citation

Kuznetsov D.D., Kuznetsova E.I., Danilov D.V., Musabirov I.I., Prokunin A.V., Koledov V.V., Shavrov V.G. High-temperature treatment of functional Heusler alloy Ni46Mn41In13 thin foils for microsystem devices and electronics // Journal of Radio Electronics. – 2024. – No. 4. https://doi.org/10.30898/1684-1719.2024.4.9

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