Nanoindentation hardness of banded Australian sedimentary opal

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dc.contributor.author Thomas, Paul en_US
dc.contributor.author Smallwood, Anthony en_US
dc.contributor.author Ray, Abhi en_US
dc.contributor.author Briscoe, Brian en_US
dc.contributor.author Parsonage, D en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:47:46Z
dc.date.available 2010-05-28T09:47:46Z
dc.date.issued 2008 en_US
dc.identifier 2008000617 en_US
dc.identifier.citation Thomas Paul et al. 2008, 'Nanoindentation hardness of banded Australian sedimentary opal', IOP Publishing, vol. 41, pp. 1-6. en_US
dc.identifier.issn 0022-3727 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/9146
dc.description.abstract en_US
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 en_US
dc.language en_US
dc.publisher IOP Publishing en_US
dc.title Nanoindentation hardness of banded Australian sedimentary opal en_US
dc.parent Journal of Physics D: Applied Physics en_US
dc.journal.volume 41 en_US
dc.journal.number en_US
dc.journal.number 7 en_US
dc.publocation Bristol, UK en_US
dc.identifier.startpage 1 en_US
dc.identifier.endpage 6 en_US
dc.cauo.name SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 091200 en_US
dc.personcode 960405 en_US
dc.personcode 76050955 en_US
dc.personcode 860311 en_US
dc.personcode 0000024153 en_US
dc.personcode 0000047230 en_US
dc.percentage 100 en_US
dc.classification.name Materials Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords en_US
dc.description.keywords NEUTRON-ACTIVATION ANALYSIS; PRECIOUS OPAL; TRACE-ELEMENTS; FUSED-SILICA; INDENTATION; TEMPERATURE; LOAD en_US


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