Development of new magnetostrictive materials in heusler type CoNiGa system

Mitsutaka Sato; Teiko Okazaki; Yasubumi Furuya; Takeshi Kubota; Chihiro Saito; Manfred Wuttig

doi:10.2320/jinstmet1952.66.3_147

Development of new magnetostrictive materials in heusler type CoNiGa system

Mitsutaka Sato, Teiko Okazaki, Yasubumi Furuya, Takeshi Kubota, Chihiro Saito, Manfred Wuttig

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We have developed new ferromagnetic shape memory alloys, Co₂Ni_2-xGa_x(x=1, 1.12, 1.15, 1.17), which have large strain caused by the magnetic-field-derived re-arrangement of martensite twin. The ribbon samples formed by rapidly solidified, melt-spinning methods showed strong anisotropy and large magnetostriction, ε∼180 × 10^-6 at applied magnetic field, 0.8 T in low temperature. In contrast to poor ductility of the well-known ferromagnetic shape memory alloy Ni₂MnGa, some of the ribbons have good ductility and are not broken even after bending to an angle of 180°.

Original language	English
Pages (from-to)	147-150
Number of pages	4
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	66
Issue number	3
DOIs	https://doi.org/10.2320/jinstmet1952.66.3_147
Publication status	Published - 2002 Mar
Externally published	Yes

Keywords

Ferromagnetic shape memory alloy
Heusler
Magnetostriction
Martensite
Rapidly solidification

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Development of new magnetostrictive materials in heusler type CoNiGa system",

abstract = "We have developed new ferromagnetic shape memory alloys, Co2Ni2-xGax(x=1, 1.12, 1.15, 1.17), which have large strain caused by the magnetic-field-derived re-arrangement of martensite twin. The ribbon samples formed by rapidly solidified, melt-spinning methods showed strong anisotropy and large magnetostriction, ε∼180 × 10-6 at applied magnetic field, 0.8 T in low temperature. In contrast to poor ductility of the well-known ferromagnetic shape memory alloy Ni2MnGa, some of the ribbons have good ductility and are not broken even after bending to an angle of 180°.",

keywords = "Ferromagnetic shape memory alloy, Heusler, Magnetostriction, Martensite, Rapidly solidification",

author = "Mitsutaka Sato and Teiko Okazaki and Yasubumi Furuya and Takeshi Kubota and Chihiro Saito and Manfred Wuttig",

year = "2002",

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doi = "10.2320/jinstmet1952.66.3_147",

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AU - Sato, Mitsutaka

AU - Okazaki, Teiko

AU - Furuya, Yasubumi

AU - Kubota, Takeshi

AU - Saito, Chihiro

AU - Wuttig, Manfred

PY - 2002/3

Y1 - 2002/3

N2 - We have developed new ferromagnetic shape memory alloys, Co2Ni2-xGax(x=1, 1.12, 1.15, 1.17), which have large strain caused by the magnetic-field-derived re-arrangement of martensite twin. The ribbon samples formed by rapidly solidified, melt-spinning methods showed strong anisotropy and large magnetostriction, ε∼180 × 10-6 at applied magnetic field, 0.8 T in low temperature. In contrast to poor ductility of the well-known ferromagnetic shape memory alloy Ni2MnGa, some of the ribbons have good ductility and are not broken even after bending to an angle of 180°.

AB - We have developed new ferromagnetic shape memory alloys, Co2Ni2-xGax(x=1, 1.12, 1.15, 1.17), which have large strain caused by the magnetic-field-derived re-arrangement of martensite twin. The ribbon samples formed by rapidly solidified, melt-spinning methods showed strong anisotropy and large magnetostriction, ε∼180 × 10-6 at applied magnetic field, 0.8 T in low temperature. In contrast to poor ductility of the well-known ferromagnetic shape memory alloy Ni2MnGa, some of the ribbons have good ductility and are not broken even after bending to an angle of 180°.

KW - Ferromagnetic shape memory alloy

KW - Heusler

KW - Magnetostriction

KW - Martensite

KW - Rapidly solidification

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Development of new magnetostrictive materials in heusler type CoNiGa system

Abstract

Keywords

ASJC Scopus subject areas

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