Thermomagnetic Actuation by Low Hysteresis Metamagnetic Ni-Co-Mn-In Films

M. Gueltig; H. Ossmer; M. Ohtsuka; H. Miki; K. Tsuchiya; T. Takagi; M. Kohl

doi:10.1016/j.matpr.2015.07.423

Thermomagnetic Actuation by Low Hysteresis Metamagnetic Ni-Co-Mn-In Films

M. Gueltig, H. Ossmer, M. Ohtsuka, H. Miki, K. Tsuchiya, T. Takagi, M. Kohl

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

5 Citations (Scopus)

Abstract

This work presents a novel actuation mechanism using the large abrupt change of magnetization ΔM in a metamagnetic Ni-Co-Mn-In film during first order phase transformation. Free-standing polycrystalline films of the composition Ni_50.4Co_3.7Mn_32.8In_13.1 are fabricated by RF magnetron sputtering on a sacrificial polyvinyl alcohol (PVA) substrate. The film composition is tailored to exhibit an abrupt change of magnetization ΔM of 26 emu/g at 50 mT with narrow hysteresis below 8K well above room temperature. A demonstrator is presented consisting of a polyimide cantilever that carries the film material at the front end. When placed between stationary heat source and heat sink, heat transfer gives rise to thermal self-actuation at a cycling frequency of 2 Hz. Design optimization allows for frequency up-conversion to resonant oscillatory motion at frequencies above 160 Hz.

Original language	English
Pages (from-to)	S883-S886
Journal	Materials Today: Proceedings
Volume	2
DOIs	https://doi.org/10.1016/j.matpr.2015.07.423
Publication status	Published - 2015

Keywords

Actuation
Frequency up-conversion
Magnetic films
Martensitic transformation
Shape memory films

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10.1016/j.matpr.2015.07.423

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@article{b67efae33da047a2bab7151de03e468f,

title = "Thermomagnetic Actuation by Low Hysteresis Metamagnetic Ni-Co-Mn-In Films",

abstract = "This work presents a novel actuation mechanism using the large abrupt change of magnetization ΔM in a metamagnetic Ni-Co-Mn-In film during first order phase transformation. Free-standing polycrystalline films of the composition Ni50.4Co3.7Mn32.8In13.1 are fabricated by RF magnetron sputtering on a sacrificial polyvinyl alcohol (PVA) substrate. The film composition is tailored to exhibit an abrupt change of magnetization ΔM of 26 emu/g at 50 mT with narrow hysteresis below 8K well above room temperature. A demonstrator is presented consisting of a polyimide cantilever that carries the film material at the front end. When placed between stationary heat source and heat sink, heat transfer gives rise to thermal self-actuation at a cycling frequency of 2 Hz. Design optimization allows for frequency up-conversion to resonant oscillatory motion at frequencies above 160 Hz.",

keywords = "Actuation, Frequency up-conversion, Magnetic films, Martensitic transformation, Shape memory films",

author = "M. Gueltig and H. Ossmer and M. Ohtsuka and H. Miki and K. Tsuchiya and T. Takagi and M. Kohl",

note = "Funding Information: This work is funded by the German Science Foundation (DFG) via the Project “Thervest” and partly supported by the Core-to-Core Program A “Advanced Research Networks” of the Japanese Science Foundation (JSPS). The authors are thankful to H. Besser for laser-cutting of MSMA films. Publisher Copyright: {\textcopyright} 2015 The Authors.",

year = "2015",

doi = "10.1016/j.matpr.2015.07.423",

language = "English",

volume = "2",

pages = "S883--S886",

journal = "Materials Today: Proceedings",

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TY - JOUR

T1 - Thermomagnetic Actuation by Low Hysteresis Metamagnetic Ni-Co-Mn-In Films

AU - Gueltig, M.

AU - Ossmer, H.

AU - Ohtsuka, M.

AU - Miki, H.

AU - Tsuchiya, K.

AU - Takagi, T.

AU - Kohl, M.

N1 - Funding Information: This work is funded by the German Science Foundation (DFG) via the Project “Thervest” and partly supported by the Core-to-Core Program A “Advanced Research Networks” of the Japanese Science Foundation (JSPS). The authors are thankful to H. Besser for laser-cutting of MSMA films. Publisher Copyright: © 2015 The Authors.

PY - 2015

Y1 - 2015

N2 - This work presents a novel actuation mechanism using the large abrupt change of magnetization ΔM in a metamagnetic Ni-Co-Mn-In film during first order phase transformation. Free-standing polycrystalline films of the composition Ni50.4Co3.7Mn32.8In13.1 are fabricated by RF magnetron sputtering on a sacrificial polyvinyl alcohol (PVA) substrate. The film composition is tailored to exhibit an abrupt change of magnetization ΔM of 26 emu/g at 50 mT with narrow hysteresis below 8K well above room temperature. A demonstrator is presented consisting of a polyimide cantilever that carries the film material at the front end. When placed between stationary heat source and heat sink, heat transfer gives rise to thermal self-actuation at a cycling frequency of 2 Hz. Design optimization allows for frequency up-conversion to resonant oscillatory motion at frequencies above 160 Hz.

AB - This work presents a novel actuation mechanism using the large abrupt change of magnetization ΔM in a metamagnetic Ni-Co-Mn-In film during first order phase transformation. Free-standing polycrystalline films of the composition Ni50.4Co3.7Mn32.8In13.1 are fabricated by RF magnetron sputtering on a sacrificial polyvinyl alcohol (PVA) substrate. The film composition is tailored to exhibit an abrupt change of magnetization ΔM of 26 emu/g at 50 mT with narrow hysteresis below 8K well above room temperature. A demonstrator is presented consisting of a polyimide cantilever that carries the film material at the front end. When placed between stationary heat source and heat sink, heat transfer gives rise to thermal self-actuation at a cycling frequency of 2 Hz. Design optimization allows for frequency up-conversion to resonant oscillatory motion at frequencies above 160 Hz.

KW - Actuation

KW - Frequency up-conversion

KW - Magnetic films

KW - Martensitic transformation

KW - Shape memory films

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SP - S883-S886

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

ER -

Thermomagnetic Actuation by Low Hysteresis Metamagnetic Ni-Co-Mn-In Films

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