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Título:	Microstructure and magnetic properties of Ni50 Mn37 Sn13 Heusler alloy ribbons
Autor/a:	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
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
Fecha de creación:	15-02-2011
Materia(s):	-Aliatges -Estany -- Propietats magnètiques -Manganès -- Propietats magnètiques -Microestructura -Níquel -- Propietats magnètiques -Alloys -Manganese -- Magnetic properties -Nickel -- Magnetic properties -Tin -- Magnetic properties -Microstructure
Derechos:	Tots els drets reservats
Tipo de documento:	Artículo
Editor:	American Institute of Physics
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