Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations

P. Hong; G. B. Olson

doi:10.1016/0038-1098(93)90571-4

Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations

P. Hong^*, G. B. Olson

^*Corresponding author for this work

Materials Science and Engineering

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

7 Scopus citations

Abstract

The interdomain boundary energy for purely elastic cubic to tetragonal transformations is calculated based on a Landau-Ginzburg approach. The strain-gradient coefficients are shown to be related to the curvatures of proper phonon dispersion curves. For the Fe₇₀Pd₃₀ alloy, a complete set of model parameters is derived from the available experimental data. Over the temperature range of the two-phase coexistence, the domain-boundary energy is found to vary from 0.11 mJ/m² to 0.32 mJ/m². The low domain-boundary energy meets the criterion proposed by Khachaturyan et at. for domain miniaturization to the "adaptive phase" limit.

Original language	English (US)
Pages (from-to)	681-683
Number of pages	3
Journal	Solid State Communications
Volume	85
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(93)90571-4
State	Published - Feb 1993

Funding

discussions with Professors A. L. Roitburd, G. R. Barsch and J. A. Krnmhansl during the course of the work. Research is supported by National Science Foundation Grant DMR 88-20116.

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(93)90571-4

Cite this

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title = "Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations",

abstract = "The interdomain boundary energy for purely elastic cubic to tetragonal transformations is calculated based on a Landau-Ginzburg approach. The strain-gradient coefficients are shown to be related to the curvatures of proper phonon dispersion curves. For the Fe70Pd30 alloy, a complete set of model parameters is derived from the available experimental data. Over the temperature range of the two-phase coexistence, the domain-boundary energy is found to vary from 0.11 mJ/m2 to 0.32 mJ/m2. The low domain-boundary energy meets the criterion proposed by Khachaturyan et at. for domain miniaturization to the {"}adaptive phase{"} limit.",

author = "P. Hong and Olson, {G. B.}",

note = "Funding Information: discussions with Professors A. L. Roitburd, G. R. Barsch and J. A. Krnmhansl during the course of the work. Research is supported by National Science Foundation Grant DMR 88-20116.",

year = "1993",

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doi = "10.1016/0038-1098(93)90571-4",

language = "English (US)",

volume = "85",

pages = "681--683",

journal = "Solid State Communications",

issn = "0038-1098",

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T1 - Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations

AU - Hong, P.

AU - Olson, G. B.

N1 - Funding Information: discussions with Professors A. L. Roitburd, G. R. Barsch and J. A. Krnmhansl during the course of the work. Research is supported by National Science Foundation Grant DMR 88-20116.

PY - 1993/2

Y1 - 1993/2

N2 - The interdomain boundary energy for purely elastic cubic to tetragonal transformations is calculated based on a Landau-Ginzburg approach. The strain-gradient coefficients are shown to be related to the curvatures of proper phonon dispersion curves. For the Fe70Pd30 alloy, a complete set of model parameters is derived from the available experimental data. Over the temperature range of the two-phase coexistence, the domain-boundary energy is found to vary from 0.11 mJ/m2 to 0.32 mJ/m2. The low domain-boundary energy meets the criterion proposed by Khachaturyan et at. for domain miniaturization to the "adaptive phase" limit.

AB - The interdomain boundary energy for purely elastic cubic to tetragonal transformations is calculated based on a Landau-Ginzburg approach. The strain-gradient coefficients are shown to be related to the curvatures of proper phonon dispersion curves. For the Fe70Pd30 alloy, a complete set of model parameters is derived from the available experimental data. Over the temperature range of the two-phase coexistence, the domain-boundary energy is found to vary from 0.11 mJ/m2 to 0.32 mJ/m2. The low domain-boundary energy meets the criterion proposed by Khachaturyan et at. for domain miniaturization to the "adaptive phase" limit.

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JO - Solid State Communications

JF - Solid State Communications

IS - 8

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Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations

Abstract

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