Stabilization of a fine twin structure in Ni-Mn-Ga by a diamond-like carbon coating

Denys Musiienko; Aaron R. Smith; Andrey Saren; Kari Ullakko

doi:10.1016/j.scriptamat.2015.03.018

Stabilization of a fine twin structure in Ni-Mn-Ga by a diamond-like carbon coating

Denys Musiienko, Aaron R. Smith, Andrey Saren, Kari Ullakko

Mechanical and Biomedical Engineering Department

Lappeenranta-Lahti University of Technology

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

8 Scopus citations

Abstract

A fine twin structure is desirable in Ni-Mn-Ga to improve the performance of the material. In this study, a fine twin structure is stabilized by applying a 50 nm surface coating of diamond-like, tetrahedral amorphous carbon. It is shown that the film elastically strains with the sample. The mechanical and magnetic properties of the coated sample are characterized and compared to the mechanical properties of the uncoated sample. The effects of the thin film on the sample properties are shown and discussed.

Original language	English
Pages (from-to)	9-12
Number of pages	4
Journal	Scripta Materialia
Volume	106
DOIs	https://doi.org/10.1016/j.scriptamat.2015.03.018
State	Published - 6 Mar 2015

Keywords

Diamond films
Ferromagnetic shape memory alloy
Ni-Mn-Ga
Surface modification
Twinning

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10.1016/j.scriptamat.2015.03.018

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title = "Stabilization of a fine twin structure in Ni-Mn-Ga by a diamond-like carbon coating",

abstract = "A fine twin structure is desirable in Ni-Mn-Ga to improve the performance of the material. In this study, a fine twin structure is stabilized by applying a 50 nm surface coating of diamond-like, tetrahedral amorphous carbon. It is shown that the film elastically strains with the sample. The mechanical and magnetic properties of the coated sample are characterized and compared to the mechanical properties of the uncoated sample. The effects of the thin film on the sample properties are shown and discussed.",

keywords = "Diamond films, Ferromagnetic shape memory alloy, Ni-Mn-Ga, Surface modification, Twinning",

author = "Denys Musiienko and Smith, {Aaron R.} and Andrey Saren and Kari Ullakko",

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T1 - Stabilization of a fine twin structure in Ni-Mn-Ga by a diamond-like carbon coating

AU - Musiienko, Denys

AU - Smith, Aaron R.

AU - Saren, Andrey

AU - Ullakko, Kari

PY - 2015/3/6

Y1 - 2015/3/6

N2 - A fine twin structure is desirable in Ni-Mn-Ga to improve the performance of the material. In this study, a fine twin structure is stabilized by applying a 50 nm surface coating of diamond-like, tetrahedral amorphous carbon. It is shown that the film elastically strains with the sample. The mechanical and magnetic properties of the coated sample are characterized and compared to the mechanical properties of the uncoated sample. The effects of the thin film on the sample properties are shown and discussed.

AB - A fine twin structure is desirable in Ni-Mn-Ga to improve the performance of the material. In this study, a fine twin structure is stabilized by applying a 50 nm surface coating of diamond-like, tetrahedral amorphous carbon. It is shown that the film elastically strains with the sample. The mechanical and magnetic properties of the coated sample are characterized and compared to the mechanical properties of the uncoated sample. The effects of the thin film on the sample properties are shown and discussed.

KW - Diamond films

KW - Ferromagnetic shape memory alloy

KW - Ni-Mn-Ga

KW - Surface modification

KW - Twinning

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U2 - 10.1016/j.scriptamat.2015.03.018

DO - 10.1016/j.scriptamat.2015.03.018

M3 - Article

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SN - 1359-6462

VL - 106

SP - 9

EP - 12

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Stabilization of a fine twin structure in Ni-Mn-Ga by a diamond-like carbon coating

Abstract

Keywords

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