Stable magnetic-field-induced strain above 1% in polycrystalline Ni-Mn-Ga

Uwe Gaitzsch; Jan Romberg; Martin Pötschke; Stefan Roth; Peter Müllner

doi:10.1016/j.scriptamat.2011.07.011

Stable magnetic-field-induced strain above 1% in polycrystalline Ni-Mn-Ga

Uwe Gaitzsch, Jan Romberg, Martin Pötschke, Stefan Roth, Peter Müllner

Micron School of Materials Science and Engineering

Leibniz Institute for Solid State and Materials Research Dresden

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

39 Scopus citations

Abstract

Polycrystalline Ni-Mn-Ga samples were directionally solidified and trained in order to lower the twinning stress. Polyurethane was used to fill the cracks. Magnetic-field-induced strain (MFIS) was measured in a rotating magnetic field over more than 10⁶ cycles. The operating temperature was varied between 0 and 45 °C. With increasing temperature, the MFIS increased from 0.6% to 1.2%. After cooling to room temperature, an enhanced MFIS of 1.0% was retained and maintained over another 10⁶ cycles.

Original language	English
Pages (from-to)	679-682
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2011.07.011
State	Published - Oct 2011

Keywords

Casting
Composites
Magnetostrain
Shape memory materials
Twinning

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10.1016/j.scriptamat.2011.07.011

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title = "Stable magnetic-field-induced strain above 1% in polycrystalline Ni-Mn-Ga",

abstract = "Polycrystalline Ni-Mn-Ga samples were directionally solidified and trained in order to lower the twinning stress. Polyurethane was used to fill the cracks. Magnetic-field-induced strain (MFIS) was measured in a rotating magnetic field over more than 106 cycles. The operating temperature was varied between 0 and 45 °C. With increasing temperature, the MFIS increased from 0.6% to 1.2%. After cooling to room temperature, an enhanced MFIS of 1.0% was retained and maintained over another 106 cycles.",

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author = "Uwe Gaitzsch and Jan Romberg and Martin P{\"o}tschke and Stefan Roth and Peter M{\"u}llner",

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T1 - Stable magnetic-field-induced strain above 1% in polycrystalline Ni-Mn-Ga

AU - Gaitzsch, Uwe

AU - Romberg, Jan

AU - Pötschke, Martin

AU - Roth, Stefan

AU - Müllner, Peter

PY - 2011/10

Y1 - 2011/10

N2 - Polycrystalline Ni-Mn-Ga samples were directionally solidified and trained in order to lower the twinning stress. Polyurethane was used to fill the cracks. Magnetic-field-induced strain (MFIS) was measured in a rotating magnetic field over more than 106 cycles. The operating temperature was varied between 0 and 45 °C. With increasing temperature, the MFIS increased from 0.6% to 1.2%. After cooling to room temperature, an enhanced MFIS of 1.0% was retained and maintained over another 106 cycles.

AB - Polycrystalline Ni-Mn-Ga samples were directionally solidified and trained in order to lower the twinning stress. Polyurethane was used to fill the cracks. Magnetic-field-induced strain (MFIS) was measured in a rotating magnetic field over more than 106 cycles. The operating temperature was varied between 0 and 45 °C. With increasing temperature, the MFIS increased from 0.6% to 1.2%. After cooling to room temperature, an enhanced MFIS of 1.0% was retained and maintained over another 106 cycles.

KW - Casting

KW - Composites

KW - Magnetostrain

KW - Shape memory materials

KW - Twinning

UR - http://www.scopus.com/inward/record.url?scp=80052264531&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2011.07.011

DO - 10.1016/j.scriptamat.2011.07.011

M3 - Article

AN - SCOPUS:80052264531

SN - 1359-6462

VL - 65

SP - 679

EP - 682

JO - Scripta Materialia

JF - Scripta Materialia

IS - 8

ER -

Stable magnetic-field-induced strain above 1% in polycrystalline Ni-Mn-Ga

Abstract

Keywords

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