Plastic Deformation of Single-Crystal Diamond Nanopillars.

Regan, B; Aghajamali, A; Froech, J; Tran, TT; Scott, J; Bishop, J; Suarez-Martinez, I; Liu, Y; Cairney, JM; Marks, NA; Toth, M; Aharonovich, I

Plastic Deformation of Single-Crystal Diamond Nanopillars.

Regan, B Aghajamali, A Froech, J Tran, TT Scott, J

Bishop, J

Suarez-Martinez, I Liu, Y Cairney, JM Marks, NA Toth, M

Aharonovich, I

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: Advanced materials (Deerfield Beach, Fla.), 2020, 32, (9)
Issue Date:: 2020-03

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Field	Value	Language
dc.contributor.author	Regan, B
dc.contributor.author	Aghajamali, A
dc.contributor.author	Froech, J
dc.contributor.author	Tran, TT
dc.contributor.author	Scott, J https://orcid.org/0000-0002-3972-4351
dc.contributor.author	Bishop, J https://orcid.org/0000-0001-6895-7544
dc.contributor.author	Suarez-Martinez, I
dc.contributor.author	Liu, Y
dc.contributor.author	Cairney, JM
dc.contributor.author	Marks, NA
dc.contributor.author	Toth, M https://orcid.org/0000-0003-1564-4899
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.date.accessioned	2021-01-12T05:15:18Z
dc.date.available	2021-01-12T05:15:18Z
dc.date.issued	2020-03
dc.identifier.citation	Advanced materials (Deerfield Beach, Fla.), 2020, 32, (9)
dc.identifier.issn	1521-4095
dc.identifier.issn	1521-4095
dc.identifier.uri	http://hdl.handle.net/10453/145339
dc.description.abstract	Diamond is known to possess a range of extraordinary properties that include exceptional mechanical stability. In this work, it is demonstrated that nanoscale diamond pillars can undergo not only elastic deformation (and brittle fracture), but also a new form of plastic deformation that depends critically on the nanopillar dimensions and crystallographic orientation of the diamond. The plastic deformation can be explained by the emergence of an ordered allotrope of carbon that is termed O8-carbon. The new phase is predicted by simulations of the deformation dynamics, which show how the sp3 bonds of (001)-oriented diamond restructure into O8-carbon in localized regions of deforming diamond nanopillars. The results demonstrate unprecedented mechanical behavior of diamond, and provide important insights into deformation dynamics of nanostructured materials.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation	http://purl.org/au-research/grants/arc/DP180100077
dc.relation	http://purl.org/au-research/grants/arc/LP170100150
dc.relation	http://purl.org/au-research/grants/arc/DP190101058
dc.relation.ispartof	Advanced materials (Deerfield Beach, Fla.)
dc.relation.isbasedon	10.1002/adma.201906458
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Plastic Deformation of Single-Crystal Diamond Nanopillars.
dc.type	Journal Article
utslib.citation.volume	32
utslib.location.activity	Germany
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - MTEE - Research Centre Materials and Technology for Energy Efficiency
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-01-12T05:15:10Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	32
utslib.citation.issue	9

Abstract:

Diamond is known to possess a range of extraordinary properties that include exceptional mechanical stability. In this work, it is demonstrated that nanoscale diamond pillars can undergo not only elastic deformation (and brittle fracture), but also a new form of plastic deformation that depends critically on the nanopillar dimensions and crystallographic orientation of the diamond. The plastic deformation can be explained by the emergence of an ordered allotrope of carbon that is termed O8-carbon. The new phase is predicted by simulations of the deformation dynamics, which show how the sp3 bonds of (001)-oriented diamond restructure into O8-carbon in localized regions of deforming diamond nanopillars. The results demonstrate unprecedented mechanical behavior of diamond, and provide important insights into deformation dynamics of nanostructured materials.

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http://hdl.handle.net/10453/145339