ORCID Profile
0000-0002-0451-3212
Current Organisation
University of Sydney
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Publisher: Japan Institute of Metals
Date: 2004
Publisher: Elsevier BV
Date: 2004
Publisher: Springer Science and Business Media LLC
Date: 05-2003
Abstract: In this study, the ideal tensile and shear strength of single-crystal β–Si 3 N 4 was calculated using an ab initio density functional technique. The stress-strain curve of the silicon nitride polymorph was calculated from simulations of uniaxial strain deformation. In particular, the ideal strength calculated for an applied ∈ 11 tensile strain was estimated to be approximately 57 GPa. Recently, a good correlation was reported between the shear modulus of high-strength materials and the experimentally determined Vickers indentation hardness value. Using the reported correlation an estimate was made of the Vickers indentation hardness of single-crystal β–Si 3 N 4 : approximately 20.4 GPa.
Publisher: SPIE
Date: 28-11-2009
DOI: 10.1117/12.822476
Publisher: Springer Science and Business Media LLC
Date: 18-07-2022
DOI: 10.1007/S40940-022-00182-0
Abstract: Non-uniformities in the heat flow through the support pillars in vacuum insulating glass (VIG) can lead to significant errors in the measurement of the thermal insulating properties of these devices. This paper discusses these errors in instruments for which the measurement area is in direct thermal contact with the glass sheets. The spatial non-uniformities of the heat flow in different VIG designs are modelled using the finite element method. For measuring areas with large dimension compared with the separation of the support pillars, the errors are unacceptably large for all practical designs of VIG when using guarded hot plate instruments. These errors are less for heat flow meter instruments due to the construction of the heat flux transducer.
Publisher: Elsevier BV
Date: 04-2003
Publisher: Springer Science and Business Media LLC
Date: 18-07-2022
DOI: 10.1007/S40940-022-00172-2
Abstract: This is the second of two papers concerning errors in the measurement of the thermal insulating properties of Vacuum Insulating Glass (VIG) due to non-uniformities in the heat flow due to the support pillars. Part 1 deals with the situation where the measurement area is in direct thermal contact with the glass sheets. This paper discusses how the non-uniformities and associated measurement errors can be reduced using thermally insulating buffer plates on each side of the specimen. A single parameter is developed that characterises the maximum error for measurement areas of all sizes. Values of this parameter are given for all practically relevant designs of the VIG and properties of the buffer plates. Methods are developed for selecting measurement conditions that lead to acceptable tradeoffs between reducing the errors associated with non-uniformities in the heat flow and errors due to heat flow through the edges of the specimen.
Publisher: Elsevier BV
Date: 10-2008
Publisher: Elsevier BV
Date: 04-2009
Publisher: Springer Science and Business Media LLC
Date: 06-2003
Publisher: Elsevier BV
Date: 12-2008
Publisher: Elsevier BV
Date: 03-2003
Publisher: Elsevier BV
Date: 08-2006
Publisher: Elsevier BV
Date: 12-2010
Publisher: Elsevier BV
Date: 03-2016
Publisher: AIP Publishing
Date: 25-09-2006
DOI: 10.1063/1.2358116
Abstract: This thin-film deposition study of tetrahedral amorphous carbon shows that including infrequent processes on the millisecond scale substantially improves the accuracy of molecular dynamics simulations. Elevated temperature between energetic impacts is used to activate processes which are typically ignored. In agreement with experiment, the simulations show an abrupt transition in which diamondlike carbon transforms into vertically oriented graphitic sheets. The simulations also highlight the importance of infrequent events in combination with energetic impact. In the absence of the latter, the transition temperature is significantly higher, in good correlation with experiment.
Publisher: Elsevier BV
Date: 03-2016
Publisher: Elsevier BV
Date: 04-2009
Publisher: Informa UK Limited
Date: 20-12-2006
Publisher: Elsevier BV
Date: 12-2021
Publisher: American Physical Society (APS)
Date: 28-03-2005
Publisher: SPIE
Date: 28-12-2006
DOI: 10.1117/12.638467
Publisher: Japan Institute of Metals
Date: 2014
Start Date: 2007
End Date: 2011
Funder: Australian Research Council
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