Viscosity bounds in liquids with different structure and bonding types

M. Withington; H. L. Devereux; C. Cockrell; A. M. Elena; I. T. Todorov; Z. K. Liu; S. L. Shang; J. S. McCloy; P. A. Bingham; K. Trachenko

doi:10.1103/PhysRevB.109.094205

Viscosity bounds in liquids with different structure and bonding types

M. Withington
, H. L. Devereux
, C. Cockrell
, A. M. Elena
, I. T. Todorov
, Z. K. Liu
, S. L. Shang
, J. S. McCloy
, P. A. Bingham
, K. Trachenko

Queen Mary University of London
Imperial College London
Daresbury Laboratory
Pennsylvania State University
Washington State University
Sheffield Hallam University

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

3 Citations (Scopus)

Abstract

Recently, it was realized that liquid viscosity has a lower bound which is nearly constant for all liquids and is governed by fundamental physical constants. This was supported by experimental data in noble and molecular liquids. Here, we perform large-scale molecular dynamics simulations to ascertain this bound in two other important liquid types: the ionic molten salt system LiF and metallic Pb. We find that these ionic and metallic systems similarly have lower viscosity bounds corresponding to the minimum of kinematic viscosity of âˆ¼10-7m2/s. We show that this agrees with experimental data in other systems with different structures and bonding types, including noble, molecular, metallic, and covalent liquids. This expands the universality of viscosity bounds into the main system types known.

Original language	English
Article number	094205
Journal	Physical Review B
Volume	109
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.109.094205
Publication status	Published - 1 Mar 2024
Externally published	Yes

Bibliographical note

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© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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title = "Viscosity bounds in liquids with different structure and bonding types",

abstract = "Recently, it was realized that liquid viscosity has a lower bound which is nearly constant for all liquids and is governed by fundamental physical constants. This was supported by experimental data in noble and molecular liquids. Here, we perform large-scale molecular dynamics simulations to ascertain this bound in two other important liquid types: the ionic molten salt system LiF and metallic Pb. We find that these ionic and metallic systems similarly have lower viscosity bounds corresponding to the minimum of kinematic viscosity of {\^a}ˆ¼10-7m2/s. We show that this agrees with experimental data in other systems with different structures and bonding types, including noble, molecular, metallic, and covalent liquids. This expands the universality of viscosity bounds into the main system types known.",

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AU - Withington, M.

AU - Devereux, H. L.

AU - Cockrell, C.

AU - Elena, A. M.

AU - Todorov, I. T.

AU - Liu, Z. K.

AU - Shang, S. L.

AU - McCloy, J. S.

AU - Bingham, P. A.

AU - Trachenko, K.

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2024/3/1

Y1 - 2024/3/1

N2 - Recently, it was realized that liquid viscosity has a lower bound which is nearly constant for all liquids and is governed by fundamental physical constants. This was supported by experimental data in noble and molecular liquids. Here, we perform large-scale molecular dynamics simulations to ascertain this bound in two other important liquid types: the ionic molten salt system LiF and metallic Pb. We find that these ionic and metallic systems similarly have lower viscosity bounds corresponding to the minimum of kinematic viscosity of âˆ¼10-7m2/s. We show that this agrees with experimental data in other systems with different structures and bonding types, including noble, molecular, metallic, and covalent liquids. This expands the universality of viscosity bounds into the main system types known.

AB - Recently, it was realized that liquid viscosity has a lower bound which is nearly constant for all liquids and is governed by fundamental physical constants. This was supported by experimental data in noble and molecular liquids. Here, we perform large-scale molecular dynamics simulations to ascertain this bound in two other important liquid types: the ionic molten salt system LiF and metallic Pb. We find that these ionic and metallic systems similarly have lower viscosity bounds corresponding to the minimum of kinematic viscosity of âˆ¼10-7m2/s. We show that this agrees with experimental data in other systems with different structures and bonding types, including noble, molecular, metallic, and covalent liquids. This expands the universality of viscosity bounds into the main system types known.

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DO - 10.1103/PhysRevB.109.094205

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VL - 109

JO - Physical Review B

JF - Physical Review B

IS - 9

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ER -

Viscosity bounds in liquids with different structure and bonding types

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