Název: Inverse-Heusler Mn2FeSi alloy prepared by powder metallurgy route
Autoři: Životský, O. ; Skotnicová, K. ; Čegan, T. ; Juřica, J. ; Gembalová, L. ; Zažímal, František ; Jirásková, Yvonna ; Szurman, I.
Typ dokumentu: Příspěvky z konference
Konference/Akce: METAL 2022 - International Conference on Metallurgy and Materials /31./, Brno (CZ), 20220518
Rok: 2022
Jazyk: eng
Abstrakt: The Mn2FeSi inverse-Heusler alloy was prepared by solid-state reactions using ball milling for 168 h in n hexane. Two milling procedures varying in the ball-to-powder ratio, namely 4:1 and 10:1, were used to follow \ntheir influence on alloy formation and its physical properties. In both cases no Heusler structure was obtained \ndirectly and therefore the subsequent annealing at 1223 K for 1.5 h in pure Ar was applied. The energy dispersive X-ray analysis resulted in the chemical composition about 49.0-49.9 at% Mn, 25.3-25.6 at% Fe, and \n24.8-25.4 at% Si, in a good agreement with nominal one. X-ray diffraction of both powders confirmed inverse Heusler XA structure of lattice parameters 0.5675 nm (4:1) and 0.5677 nm (10:1), only slightly higher as \ntheoretically obtained 0.560 nm. The presence of minor oxidation phases was also observed in the particle \nstructure of powders. Magnetic properties were analysed at low and room temperatures. Both alloys exhibit \nparamagnetic behaviour at room temperature confirmed by transmission Mössbauer spectroscopy \nmeasurements. Different magnetic behaviour of alloys is observed below 65 K.
Klíčová slova: ball milling; Heusler alloy, powder, ball milling, microstructure, magnetism; magnetism; microstructure; powder
Zdrojový dokument: METAL 2022, ISBN 978-80-88365-06-8, ISSN 2694-9296
Poznámka: Související webová stránka: https://www.confer.cz/metal/2022/4434-inverse-heusler-mn2fesi-alloy-prepared-by-powder-metallurgy-route

Instituce: Ústav fyziky materiálů AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: https://hdl.handle.net/11104/0352974

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-614135