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Microstructure and magnetic properties of Ni50 Mn37 Sn13 Heusler alloy ribbons

The Heusler alloy Ni50 Mn37 Sn13 was successfully produced as ribbon flakes of thickness around 7-10 μm melt spinning. Fracture cross section micrographs in the ribbon show the formation of a microcrystalline columnarlike microstructure, with their longer axes perpendicular to the ribbon plane. Phase transition temperatures of the martensite-austenite transformation were found to be MS =218 K, Mf =207 K, AS =224 K, and Af =232 K; the thermal hysteresis of the transformation is 15 K. Ferromagnetic L 21 bcc austenite phase shows a Curie point of 313 K, with cell parameter a=0.5971 (5) nm at 298 K, transforming into a modulated 7M orthorhombic martensite with a=0.6121 (7) nm, b=0.6058 (8) nm, and c=0.5660 (2) nm, at 150 K

© Journal of Applied Physics, 2008, vol. 103, núm. 7

American Institute of Physics

Author: Santos Rodríguez, Jesús Daniel
Sánchez Fernández, Tatiana
Álvarez, Pablo G.
Sánchez Rodríguez, M. Luisa
Sánchez Llamazares, José Luis
Hernando, Blanca
Escoda i Acero, Ma. Lluïsa
Suñol Martínez, Joan Josep
Varga, Rastislav
Date: 2008
Abstract: The Heusler alloy Ni50 Mn37 Sn13 was successfully produced as ribbon flakes of thickness around 7-10 μm melt spinning. Fracture cross section micrographs in the ribbon show the formation of a microcrystalline columnarlike microstructure, with their longer axes perpendicular to the ribbon plane. Phase transition temperatures of the martensite-austenite transformation were found to be MS =218 K, Mf =207 K, AS =224 K, and Af =232 K; the thermal hysteresis of the transformation is 15 K. Ferromagnetic L 21 bcc austenite phase shows a Curie point of 313 K, with cell parameter a=0.5971 (5) nm at 298 K, transforming into a modulated 7M orthorhombic martensite with a=0.6121 (7) nm, b=0.6058 (8) nm, and c=0.5660 (2) nm, at 150 K
Format: application/pdf
Citation: Santos, J.D., Sánchez, T., Álvarez, P., Sánchez, M.L., Llamazares, J.L.S., Hernándo, B., Escoda, Ll., Suñol, J.J. i Varga, R. (2008). Microstructure and magnetic properties of Ni50 Mn37 Sn13 Heusler alloy ribbons. Journal of Applied Physics, 103 (7), 07B326. Recuperat 7 febrer 2011, a http://link.aip.org/link/JAPIAU/v103/i7/p07B326/s1
ISSN: 0021-8979 (versió paper)
1089-7550 (versió electrònica)
Document access: http://hdl.handle.net/10256/3225
Language: eng
Publisher: American Institute of Physics
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1063/1.2832330
Articles publicats (D-F)
Is part of: © Journal of Applied Physics, 2008, vol. 103, núm. 7
Rights: Tots els drets reservats
Subject: Aliatges
Estany -- Propietats magnètiques
Manganès -- Propietats magnètiques
Microestructura
Níquel -- Propietats magnètiques
Alloys
Manganese -- Magnetic properties
Nickel -- Magnetic properties
Tin -- Magnetic properties
Microstructure
Title: Microstructure and magnetic properties of Ni50 Mn37 Sn13 Heusler alloy ribbons
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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