Origin of negative thermal expansion phenomenon in solids

Zi Kui Liu; Yi Wang; Shun Li Shang

doi:10.1016/j.scriptamat.2011.07.001

Origin of negative thermal expansion phenomenon in solids

Zi Kui Liu, Yi Wang, Shun Li Shang

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

58 Scopus citations

Abstract

We show that the negative thermal expansion (NTE) phenomenon originates from the existence of high pressure, small volume phases with higher entropy, with their configurations present in the stable phase matrix through thermal fluctuations, thus exists. Consequently, it extends the platform for designing structures with desired thermal expansion properties whether positive, negative, or zero. The theory is validated for a range of pure elements and compounds and utilized to provide insights to the NTE phenomenon in Fe₃Pt and ZrW₂O₈.

Original language	English (US)
Pages (from-to)	664-667
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2011.07.001
State	Published - Oct 2011

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2011.07.001

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title = "Origin of negative thermal expansion phenomenon in solids",

abstract = "We show that the negative thermal expansion (NTE) phenomenon originates from the existence of high pressure, small volume phases with higher entropy, with their configurations present in the stable phase matrix through thermal fluctuations, thus exists. Consequently, it extends the platform for designing structures with desired thermal expansion properties whether positive, negative, or zero. The theory is validated for a range of pure elements and compounds and utilized to provide insights to the NTE phenomenon in Fe3Pt and ZrW2O8.",

author = "Liu, {Zi Kui} and Yi Wang and Shang, {Shun Li}",

note = "Funding Information: This work is funded by Office of Naval Research under the Contract number of N0014-07-1-0638 and National Science Foundation through Grant DMR- 1006557 . We greatly appreciate the program managers David Shifler and Alan J. Ardell for their support and encouragement. We would like to thank Brian Vanleeuwen and Chelsey Zacherl for their comments of the manuscript. ",

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AU - Liu, Zi Kui

AU - Wang, Yi

AU - Shang, Shun Li

N1 - Funding Information: This work is funded by Office of Naval Research under the Contract number of N0014-07-1-0638 and National Science Foundation through Grant DMR- 1006557 . We greatly appreciate the program managers David Shifler and Alan J. Ardell for their support and encouragement. We would like to thank Brian Vanleeuwen and Chelsey Zacherl for their comments of the manuscript.

PY - 2011/10

Y1 - 2011/10

N2 - We show that the negative thermal expansion (NTE) phenomenon originates from the existence of high pressure, small volume phases with higher entropy, with their configurations present in the stable phase matrix through thermal fluctuations, thus exists. Consequently, it extends the platform for designing structures with desired thermal expansion properties whether positive, negative, or zero. The theory is validated for a range of pure elements and compounds and utilized to provide insights to the NTE phenomenon in Fe3Pt and ZrW2O8.

AB - We show that the negative thermal expansion (NTE) phenomenon originates from the existence of high pressure, small volume phases with higher entropy, with their configurations present in the stable phase matrix through thermal fluctuations, thus exists. Consequently, it extends the platform for designing structures with desired thermal expansion properties whether positive, negative, or zero. The theory is validated for a range of pure elements and compounds and utilized to provide insights to the NTE phenomenon in Fe3Pt and ZrW2O8.

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Origin of negative thermal expansion phenomenon in solids

Abstract

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