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Atomically sharp crack tips in monolayer MoS2 and their enhanced toughness by vacancy defects.

Abstract:

When a brittle material fractures due to an applied stress, cracks propagate through the material causing mechanical failure. Atomically sharp crack tips at the frontier of crack propagation are predicted but have not been captured experimentally before, which requires both, atomic resolution and crack tracking at much larger length scales. Here, we combine both in-situ aberration-corrected transmission electron microscopy and large-scale molecular dynamics simulations based on a reactive for...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/acsnano.6b05435

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Funding agency for:
Wang, S
Air Force Office of Scientific Research More from this funder
Office for Nuclear Regulation More from this funder
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Publisher:
American Chemical Society Publisher's website
Journal:
ACS nano Journal website
Volume:
10
Issue:
11
Pages:
9831-9839
Publication date:
2016-09-01
Acceptance date:
2016-09-22
DOI:
EISSN:
1936-086X
ISSN:
1936-0851
Pmid:
27657175
Source identifiers:
648182
Language:
English
Keywords:
Pubs id:
pubs:648182
UUID:
uuid:e766184b-d53b-4035-b09a-8fcb6344fb9a
Local pid:
pubs:648182
Deposit date:
2016-12-15

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