Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 Feb 25;27(8):1455-9.
doi: 10.1002/adma.201404106. Epub 2014 Dec 15.

Tailoring graphene to achieve negative Poisson's ratio properties

Joseph N Grima  1 , Szymon Winczewski, Luke Mizzi, Michael C Grech, Reuben Cauchi, Ruben Gatt, Daphne Attard, Krzysztof W Wojciechowski, Jarosław Rybicki
Affiliations

Tailoring graphene to achieve negative Poisson's ratio properties

Joseph N Grima et al. Adv Mater. .

Abstract

Graphene can be made auxetic through the introduction of vacancy defects. This results in the thinnest negative Poisson's ratio material at ambient conditions known so far, an effect achieved via a nanoscale de-wrinkling mechanism that mimics the behavior at the macroscale exhibited by a crumpled sheet of paper when stretched.

Keywords: Poisson's ratio; auxetic; graphene; molecular dynamics; vacancy defects.

PubMed Disclaimer

LinkOut - more resources