Surface analysis of the Heusler Ni49.7Mn29.1Ga21.2 alloy: the composition, phase transition, and twinned microstructure of martensite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00465540" target="_blank" >RIV/68378271:_____/16:00465540 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/16:10425674

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4962648" target="_blank" >http://dx.doi.org/10.1063/1.4962648</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4962648" target="_blank" >10.1063/1.4962648</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface analysis of the Heusler Ni49.7Mn29.1Ga21.2 alloy: the composition, phase transition, and twinned microstructure of martensite

Popis výsledku v původním jazyce

Surface analysis was used to study the dynamics of the martensitic transformation on macro- and mesoscopic scales. The chemical state, morphology, and magnetic and surface structure were monitored at particular stages of the phase transition. At room temperature, the martensitic phase of the Ni49.7Mn29.1Ga21.2 (100) single crystal exhibited macroscopic a/c twinning and a corresponding magnetic domain structure characterized by magnetization vector in and out of the surface plane. Induced by radiation heating, the transformation from martensite to austenite takes place separately at the surface and in the bulk. Its dynamics depend on the history of the sample treatment which affects the crystallographic orientation of twins and minor changes of the surface stoichiometry. The interfaces (twin planes) between twin variants in the martensitic phase were noticeable also in the austenitic phase, thanks to the shape memory effect of this material.

Název v anglickém jazyce

Surface analysis of the Heusler Ni49.7Mn29.1Ga21.2 alloy: the composition, phase transition, and twinned microstructure of martensite

Popis výsledku anglicky

Surface analysis was used to study the dynamics of the martensitic transformation on macro- and mesoscopic scales. The chemical state, morphology, and magnetic and surface structure were monitored at particular stages of the phase transition. At room temperature, the martensitic phase of the Ni49.7Mn29.1Ga21.2 (100) single crystal exhibited macroscopic a/c twinning and a corresponding magnetic domain structure characterized by magnetization vector in and out of the surface plane. Induced by radiation heating, the transformation from martensite to austenite takes place separately at the surface and in the bulk. Its dynamics depend on the history of the sample treatment which affects the crystallographic orientation of twins and minor changes of the surface stoichiometry. The interfaces (twin planes) between twin variants in the martensitic phase were noticeable also in the austenitic phase, thanks to the shape memory effect of this material.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

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Svazek periodika

120

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000384573200010

EID výsledku v databázi Scopus

2-s2.0-84988698733