Magnetic shape memory effect and highly mobile twin boundaries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00435149" target="_blank" >RIV/68378271:_____/14:00435149 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1179/1743284714Y.0000000599" target="_blank" >http://dx.doi.org/10.1179/1743284714Y.0000000599</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1179/1743284714Y.0000000599" target="_blank" >10.1179/1743284714Y.0000000599</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic shape memory effect and highly mobile twin boundaries

Popis výsledku v původním jazyce

The magnetic shape memory effect can be classified as an example of the multiferroic effect combining ferro-elasticity and (ferro)magnetism. After short overview of all known effects the focus is on magnetic field induced structure reorientation (MIR) inthe martensite of Ni?Mn?Ga. In this material giant deformations of up to 12% have been observed in moderate magnetic fields. The phenomenology of the effect is first discussed and a model presented. The properties of Ni?Mn?Ga relevant to MIR are then considered. One necessary condition for MIR is a highly mobile twin boundary or interface between two differently oriented martensite variants (ferroelastic domains). In 10M modulated martensite, two types of mobile twin boundary (type I and type II) are observed with complex layered microstructures consisting of a hierarchy of twinning systems. Finally, the nature of these boundaries and their different behaviour is reviewed.

Název v anglickém jazyce

Magnetic shape memory effect and highly mobile twin boundaries

Popis výsledku anglicky

The magnetic shape memory effect can be classified as an example of the multiferroic effect combining ferro-elasticity and (ferro)magnetism. After short overview of all known effects the focus is on magnetic field induced structure reorientation (MIR) inthe martensite of Ni?Mn?Ga. In this material giant deformations of up to 12% have been observed in moderate magnetic fields. The phenomenology of the effect is first discussed and a model presented. The properties of Ni?Mn?Ga relevant to MIR are then considered. One necessary condition for MIR is a highly mobile twin boundary or interface between two differently oriented martensite variants (ferroelastic domains). In 10M modulated martensite, two types of mobile twin boundary (type I and type II) are observed with complex layered microstructures consisting of a hierarchy of twinning systems. Finally, the nature of these boundaries and their different behaviour is reviewed.

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

<a href="/cs/project/GAP107%2F11%2F0391" target="_blank" >GAP107/11/0391: Heuslerovy slitiny vykazující jev magnetické tvarové paměti a příbuzné jevy</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Materials Science and Technology

ISSN

0267-0836

e-ISSN

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Svazek periodika

30

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

1559-1578

Kód UT WoS článku

000346165400005

EID výsledku v databázi Scopus

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