Nanoindentation hardness of banded Australian sedimentary opal

Thomas, PS; Smallwood, AS; Ray, AS; Briscoe, BJ; Parsonage, D

Nanoindentation hardness of banded Australian sedimentary opal

Thomas, PS

Smallwood, AS Ray, AS Briscoe, BJ Parsonage, D

Permalink

Publication Type:: Journal Article
Citation:: Journal of Physics D: Applied Physics, 2008, 41 (7)
Issue Date:: 2008-04-07

Closed Access

	Filename	Description	Size
	2008000617OK.pdf		477.69 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Thomas, PS https://orcid.org/0000-0001-6962-2121	en_US
dc.contributor.author	Smallwood, AS	en_US
dc.contributor.author	Ray, AS	en_US
dc.contributor.author	Briscoe, BJ	en_US
dc.contributor.author	Parsonage, D	en_US
dc.date.issued	2008-04-07	en_US
dc.identifier.citation	Journal of Physics D: Applied Physics, 2008, 41 (7)	en_US
dc.identifier.issn	0022-3727	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9146
dc.description.abstract	Nanoindentation hardness data in continuous stiffness mode are reported for banded potch and play of colour opals sourced from Lightning Ridge in New South Wales and Andamooka in South Australia. Despite the significant visible heterogeneities observed and the significant differences in origin and microstructures, as observed by SEM, and subtle differences in the elemental distributions between bands within specimens, little difference was observed in the mechanical properties. Specimens were found to be mechanically homogeneous and values of the hardness and moduli were found to be similar between samples. The creep behaviour of the specimens was also observed to be similar. It was concluded that the similarities in mechanical properties were due to the similarities in the silica morphology of the specimens, formed in similar geological environments, as differences in microstructure and trace element distribution were found not to significantly influence the observed bulk mechanical properties. © 2008 IOP Publishing Ltd.	en_US
dc.relation.ispartof	Journal of Physics D: Applied Physics	en_US
dc.relation.isbasedon	10.1088/0022-3727/41/7/074028	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Nanoindentation hardness of banded Australian sedimentary opal	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	41	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	41	en_US

Abstract:

Nanoindentation hardness data in continuous stiffness mode are reported for banded potch and play of colour opals sourced from Lightning Ridge in New South Wales and Andamooka in South Australia. Despite the significant visible heterogeneities observed and the significant differences in origin and microstructures, as observed by SEM, and subtle differences in the elemental distributions between bands within specimens, little difference was observed in the mechanical properties. Specimens were found to be mechanically homogeneous and values of the hardness and moduli were found to be similar between samples. The creep behaviour of the specimens was also observed to be similar. It was concluded that the similarities in mechanical properties were due to the similarities in the silica morphology of the specimens, formed in similar geological environments, as differences in microstructure and trace element distribution were found not to significantly influence the observed bulk mechanical properties. © 2008 IOP Publishing Ltd.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/9146