Co2FeSi Heusler alloy prepared by arc melting and planar flow casting methods: microstructure and magnetism.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00474513" target="_blank" >RIV/68081723:_____/17:00474513 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/17:10235735 RIV/61989100:27760/17:10235735

Výsledek na webu

<a href="http://dx.doi.org/10.12693/APhysPolA.131.654" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.131.654</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.131.654" target="_blank" >10.12693/APhysPolA.131.654</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Co2FeSi Heusler alloy prepared by arc melting and planar flow casting methods: microstructure and magnetism.

Popis výsledku v původním jazyce

This paper is devoted to studies of the structural and magnetic properties of Co2FeSi Heusler alloy produced by arc melting resulted in samples with large grains compared to finer-grained ribbon type samples prepared by planar flow casting. The scanning electron microscopy completed by energy dispersive X-ray spectroscopy, X-ray diffraction, and magnetic methods sensitive to both bulk and surface were applied. The chemical composition inside the grains was found to be in agreement with the nominal one while at the grain boundaries enrichment on Co and Si at expense of Fe was observed. The magnetic parameters derived from the bulk hysteresis curves resulted in nearly the same values of coercivity, about 1 kA/m, for both technological procedures while magnetization was of about 15 Am2/kg higher at ribbons compared with sample prepared by arc melting, 145 Am2/kg. The surface magnetic characteristics were visibly influenced by a surface magnetic anisotropy. The smooth polished surface of the sample prepared by arc melting has allowed visualizing the magnetic domain structure inside the grains and at grain boundaries by the magneto-optical Kerr microscopy and magnetic force microscopy.

Název v anglickém jazyce

Co2FeSi Heusler alloy prepared by arc melting and planar flow casting methods: microstructure and magnetism.

Popis výsledku anglicky

This paper is devoted to studies of the structural and magnetic properties of Co2FeSi Heusler alloy produced by arc melting resulted in samples with large grains compared to finer-grained ribbon type samples prepared by planar flow casting. The scanning electron microscopy completed by energy dispersive X-ray spectroscopy, X-ray diffraction, and magnetic methods sensitive to both bulk and surface were applied. The chemical composition inside the grains was found to be in agreement with the nominal one while at the grain boundaries enrichment on Co and Si at expense of Fe was observed. The magnetic parameters derived from the bulk hysteresis curves resulted in nearly the same values of coercivity, about 1 kA/m, for both technological procedures while magnetization was of about 15 Am2/kg higher at ribbons compared with sample prepared by arc melting, 145 Am2/kg. The surface magnetic characteristics were visibly influenced by a surface magnetic anisotropy. The smooth polished surface of the sample prepared by arc melting has allowed visualizing the magnetic domain structure inside the grains and at grain boundaries by the magneto-optical Kerr microscopy and magnetic force microscopy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Physica Polonica. A

ISSN

0587-4246

e-ISSN

—

Svazek periodika

131

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

3

Strana od-do

654-656

Kód UT WoS článku

000400907900015

EID výsledku v databázi Scopus

2-s2.0-85019640389