Skip to main content

Research Repository

Advanced Search

Negative linear compressibility in common materials

Miller, W.; Evans, K. E.; Marmier, A.

Negative linear compressibility in common materials Thumbnail


Authors

W. Miller

K. E. Evans

Arnaud Marmier Arnaud.Marmier@uwe.ac.uk
Senior Lecturer in Mechanical Engineering



Abstract

© 2015 AIP Publishing LLC. Negative linear compressibility (NLC) is still considered an exotic property, only observed in a few obscure crystals. The vast majority of materials compress axially in all directions when loaded in hydrostatic compression. However, a few materials have been observed which expand in one or two directions under hydrostatic compression. At present, the list of materials demonstrating this unusual behaviour is confined to a small number of relatively rare crystal phases, biological materials, and designed structures, and the lack of widespread availability hinders promising technological applications. Using improved representations of elastic properties, this study revisits existing databases of elastic constants and identifies several crystals missed by previous reviews. More importantly, several common materials - drawn polymers, certain types of paper and wood, and carbon fibre laminates - are found to display NLC. We show that NLC in these materials originates from the misalignment of polymers/fibres. Using a beam model, we propose that maximum NLC is obtained for misalignment of 26°. The existence of such widely available materials increases significantly the prospects for applications of NLC.

Citation

Miller, W., Evans, K. E., & Marmier, A. (2015). Negative linear compressibility in common materials. Applied Physics Letters, 106(23), Article 231903. https://doi.org/10.1063/1.4922460

Journal Article Type Article
Acceptance Date Jun 2, 2015
Online Publication Date Jun 10, 2015
Publication Date Jun 8, 2015
Deposit Date Jun 16, 2016
Publicly Available Date Jun 16, 2016
Journal Applied Physics Letters
Print ISSN 0003-6951
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 106
Issue 23
Article Number 231903
DOI https://doi.org/10.1063/1.4922460
Keywords negative linear compressibility, common materials
Public URL https://uwe-repository.worktribe.com/output/843492
Publisher URL http://dx.doi.org/10.1063/1.4922460

Files







You might also like



Downloadable Citations