Comparison of magnetic field controlled damping properties of single crystal Ni-Mn-Ga and Ni-Mn-Ga polymer hybrid composite structures

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Comparison of magnetic field controlled damping properties of single crystal Ni-Mn-Ga and Ni-Mn-Ga polymer hybrid composite structures. / Nilsén, Frans; Aaltio, Ilkka; Hannula, Simo Pekka.

In: Composites Science and Technology, Vol. 160, 26.05.2018, p. 138-144.

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@article{afe970b710034a12b86dfa173ed5ea1c,
title = "Comparison of magnetic field controlled damping properties of single crystal Ni-Mn-Ga and Ni-Mn-Ga polymer hybrid composite structures",
abstract = "Magnetically controlled hybrid Ni-Mn-Ga composites are potential candidates for actuation and damping applications. The combination of ductile polymer and gas atomized large grained Ni-Mn-Ga powder has many advantages compared to bulk single crystals. These advantages include ease of manufacturing and freedom of shape, while still being magnetically controllable. In this report, Ni-Mn-Ga-epoxy hybrid composite structures are manufactured at three different filling ratios 25, 30 and 35 vol-{\%} and damping properties of the composites are compared to those of 5M Ni-Mn-Ga single crystal. The damping properties are characterized using a laboratory made high-frequency dynamic mechanical testing instrument and a dynamic mechanic analyzer (DMA) in single cantilever mode. The mechanical cycling experiments revealed that the damping ability of the Ni-Mn-Ga composites depends on the filling ratio. The magnetic field induced stiffening observed in the mechanical cycling experiments of the single crystal sample at 100 Hz correlated roughly with that of the composite sample having filling ratio of 35 vol-{\%}.",
keywords = "Casting, Damping, Functional composites, Magnetic properties, Smart materials",
author = "Frans Nils{\'e}n and Ilkka Aaltio and Hannula, {Simo Pekka}",
year = "2018",
month = "5",
day = "26",
doi = "10.1016/j.compscitech.2018.03.026",
language = "English",
volume = "160",
pages = "138--144",
journal = "Composites Science and Technology",
issn = "0266-3538",
publisher = "Elsevier BV",

}

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TY - JOUR

T1 - Comparison of magnetic field controlled damping properties of single crystal Ni-Mn-Ga and Ni-Mn-Ga polymer hybrid composite structures

AU - Nilsén, Frans

AU - Aaltio, Ilkka

AU - Hannula, Simo Pekka

PY - 2018/5/26

Y1 - 2018/5/26

N2 - Magnetically controlled hybrid Ni-Mn-Ga composites are potential candidates for actuation and damping applications. The combination of ductile polymer and gas atomized large grained Ni-Mn-Ga powder has many advantages compared to bulk single crystals. These advantages include ease of manufacturing and freedom of shape, while still being magnetically controllable. In this report, Ni-Mn-Ga-epoxy hybrid composite structures are manufactured at three different filling ratios 25, 30 and 35 vol-% and damping properties of the composites are compared to those of 5M Ni-Mn-Ga single crystal. The damping properties are characterized using a laboratory made high-frequency dynamic mechanical testing instrument and a dynamic mechanic analyzer (DMA) in single cantilever mode. The mechanical cycling experiments revealed that the damping ability of the Ni-Mn-Ga composites depends on the filling ratio. The magnetic field induced stiffening observed in the mechanical cycling experiments of the single crystal sample at 100 Hz correlated roughly with that of the composite sample having filling ratio of 35 vol-%.

AB - Magnetically controlled hybrid Ni-Mn-Ga composites are potential candidates for actuation and damping applications. The combination of ductile polymer and gas atomized large grained Ni-Mn-Ga powder has many advantages compared to bulk single crystals. These advantages include ease of manufacturing and freedom of shape, while still being magnetically controllable. In this report, Ni-Mn-Ga-epoxy hybrid composite structures are manufactured at three different filling ratios 25, 30 and 35 vol-% and damping properties of the composites are compared to those of 5M Ni-Mn-Ga single crystal. The damping properties are characterized using a laboratory made high-frequency dynamic mechanical testing instrument and a dynamic mechanic analyzer (DMA) in single cantilever mode. The mechanical cycling experiments revealed that the damping ability of the Ni-Mn-Ga composites depends on the filling ratio. The magnetic field induced stiffening observed in the mechanical cycling experiments of the single crystal sample at 100 Hz correlated roughly with that of the composite sample having filling ratio of 35 vol-%.

KW - Casting

KW - Damping

KW - Functional composites

KW - Magnetic properties

KW - Smart materials

UR - http://www.scopus.com/inward/record.url?scp=85044738243&partnerID=8YFLogxK

U2 - 10.1016/j.compscitech.2018.03.026

DO - 10.1016/j.compscitech.2018.03.026

M3 - Article

VL - 160

SP - 138

EP - 144

JO - Composites Science and Technology

JF - Composites Science and Technology

SN - 0266-3538

ER -

ID: 18975298