File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

DingFeng

Ding, Feng
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Ultralarge elastic deformation of nanoscale diamond

Author(s)
Banerjee, AmitBernoulli, DanielZhang, HongtiYuen, Muk-FungLiu, JiabinDong, JichenDing, FengLu, JianDao, MingZhang, WenjunLu, YangSuresh, Subra
Issued Date
2018-04
DOI
10.1126/science.aar4165
URI
https://scholarworks.unist.ac.kr/handle/201301/24104
Fulltext
http://science.sciencemag.org/content/360/6386/300
Citation
SCIENCE, v.360, no.6386, pp.300 - 302
Abstract
Diamonds have substantial hardness and durability, but attempting to deform diamonds usually results in brittle fracture. We demonstrate ultralarge, fully reversible elastic deformation of nanoscale (similar to 300 nanometers) single-crystalline and polycrystalline diamond needles. For single-crystalline diamond, the maximum tensile strains (up to 9%) approached the theoretical elastic limit, and the corresponding maximum tensile stress reached similar to 89 to 98 gigapascals. After combining systematic computational simulations and characterization of pre- and postdeformation structural features, we ascribe the concurrent high strength and large elastic strain to the paucity of defects in the small-volume diamond nanoneedles and to the relatively smooth surfaces compared with those of microscale and larger specimens. The discovery offers the potential for new applications through optimized design of diamond nanostructure, geometry, elastic strains, and physical properties.
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
ISSN
0036-8075
Keyword
STRENGTHDELIVERYSTRAIN

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.