Forced volume magnetostriction in composite Gd 5Si 2Ge 2

Nersesse Nersessian; Siu Wing Or; Gregory P. Carman; S. McCall; Wonyoung Choe; Harry B. Radousky; Vitalij K. Pecharsky; Alexandra O. Pecharsky

doi:10.1117/12.540176

Forced volume magnetostriction in composite Gd 5Si 2Ge 2

Nersesse Nersessian, Siu Wing Or, Gregory P. Carman, S. McCall, Wonyoung Choe, Harry B. Radousky, Vitalij K. Pecharsky, Alexandra O. Pecharsky

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

A -1200 ppm forced volume magnetostriction has been obtained in a [0-3], resin-bonded, Gd5Si2Ge5participate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of ≤600 μm. Bulk Gd5Si2Ge2was manufactured via arc melting and subsequently annealed at 1300°C for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were Ms= -9.3°C, Mf= -14.6°C, As= -4.4°C, and Af= -1.2°C. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of-2500 ppm.

Original language	English
Pages (from-to)	64-71
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5387
DOIs	https://doi.org/10.1117/12.540176
Publication status	Published - 26 Oct 2004
Externally published	Yes
Event	Smart Structures and Materials 2004 - Active Materials: Behaviour and Mechanics - San Diego, CA, United States Duration: 15 Mar 2004 → 18 Mar 2004

Keywords

[0-3] composites
Gd Si Ge 5 2 2
Phase transformation
Volume magnetostriction

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

More information

10.1117/12.540176

Cite this

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title = "Forced volume magnetostriction in composite Gd 5Si 2Ge 2",

abstract = "A -1200 ppm forced volume magnetostriction has been obtained in a [0-3], resin-bonded, Gd5Si2Ge5participate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of ≤600 μm. Bulk Gd5Si2Ge2was manufactured via arc melting and subsequently annealed at 1300°C for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were Ms= -9.3°C, Mf= -14.6°C, As= -4.4°C, and Af= -1.2°C. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of-2500 ppm.",

keywords = "[0-3] composites, Gd Si Ge 5 2 2, Phase transformation, Volume magnetostriction",

author = "Nersesse Nersessian and Or, {Siu Wing} and Carman, {Gregory P.} and S. McCall and Wonyoung Choe and Radousky, {Harry B.} and Pecharsky, {Vitalij K.} and Pecharsky, {Alexandra O.}",

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T1 - Forced volume magnetostriction in composite Gd 5Si 2Ge 2

AU - Nersessian, Nersesse

AU - Or, Siu Wing

AU - Carman, Gregory P.

AU - McCall, S.

AU - Choe, Wonyoung

AU - Radousky, Harry B.

AU - Pecharsky, Vitalij K.

AU - Pecharsky, Alexandra O.

PY - 2004/10/26

Y1 - 2004/10/26

N2 - A -1200 ppm forced volume magnetostriction has been obtained in a [0-3], resin-bonded, Gd5Si2Ge5participate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of ≤600 μm. Bulk Gd5Si2Ge2was manufactured via arc melting and subsequently annealed at 1300°C for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were Ms= -9.3°C, Mf= -14.6°C, As= -4.4°C, and Af= -1.2°C. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of-2500 ppm.

AB - A -1200 ppm forced volume magnetostriction has been obtained in a [0-3], resin-bonded, Gd5Si2Ge5participate composite. The strain is a result of a magnetically induced phase transformation from a high volume (high temperature, low magnetic field) monoclinic phase to a low volume (low temperature, high magnetic field) orthorhombic phase. The particles used in the composite were ball-milled from a bulk sample and sieved to obtain a size distribution of ≤600 μm. Bulk Gd5Si2Ge2was manufactured via arc melting and subsequently annealed at 1300°C for 1 hour to produce a homogenous, polycrystalline sample. The transformation temperatures of the bulk sample, as measured using a Differential Scanning Calorimeter (DSC), were Ms= -9.3°C, Mf= -14.6°C, As= -4.4°C, and Af= -1.2°C. The composite and the bulk samples were magnetically characterized using a SQUID magnetometer, and found to undergo a paramagnetic to ferromagnetic transition during the phase transformation, consistent with published results. The bulk sample was also found to possess a maximum linear magnetostriction of-2500 ppm.

KW - [0-3] composites

KW - Gd Si Ge 5 2 2

KW - Phase transformation

KW - Volume magnetostriction

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DO - 10.1117/12.540176

M3 - Conference article

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JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Smart Structures and Materials 2004 - Active Materials: Behaviour and Mechanics

Y2 - 15 March 2004 through 18 March 2004

ER -

Forced volume magnetostriction in composite Gd 5Si 2Ge 2

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