Repository logo


ANSTO Publications Online

Welcome to the ANSTO Institutional Repository known as APO.

The APO database has been migrated to version 8.3. The functionality has changed, but the content remains the same.

ANSTO Publications Online is a digital repository for publications authored by ANSTO staff since 2007. The Repository also contains ANSTO Publications, such as Reports and Promotional Material. ANSTO publications prior to 2007 continue to be added progressively as they are in identified in the library. ANSTO authors can be identified under a single point of entry within the database. The citation is as it appears on the item, even with incorrect spelling, which is marked by (sic) or with additional notes in the description field.

If items are only held in hardcopy in the ANSTO Library collection notes are being added to the item to identify the Dewey Call number: as DDC followed by the number.

APO will be integrated with the Research Information System which is currently being implemented at ANSTO. The flow on effect will be permission to publish, which should allow pre-prints and post prints to be added where content is locked behind a paywall. To determine which version can be added to APO authors should check Sherpa Romeo. ANSTO research is increasingly being published in open access due mainly to the Council of Australian University Librarians read and publish agreements, and some direct publisher agreements with our organisation. In addition, open access items are also facilitated through collaboration and open access agreements with overseas authors such as Plan S.

ANSTO authors are encouraged to use a CC-BY licence when publishing open access. Statistics have been returned to the database and are now visible to users to show item usage and where this usage is coming from.

Discover

Communities in ANSTO Publications Online

Select a community to browse its collections.

Now showing 1 - 5 of 5

Recent Submissions

  • Thumbnail Image
    Item type: Item ,
    The free-energy barrier to hydride transfer across a dipalladium complex
    (Royal Society of Chemistry, 2015-02-05) Vanston, CR; Kearley, GJ; Edwards, AJ; Darwish, TA; de Souza, NR; Ramirez-Cuesta, AJ; Gardiner, MG
    We use density-functional theory molecular dynamics (DFT-MD) simulations to determine the hydride transfer coordinate between palladium centres of the crystallographically observed terminal hydride locations, Pd–Pd–H, originally postulated for the solution dynamics of the complex bis-NHC dipalladium hydride [{(MesIm)2CH2}2Pd2H][PF6], and then calculate the free-energy along this coordinate. We estimate the transfer barrier-height to be about 20 kcal mol−1 with a hydride transfer rate in the order of seconds at room temperature. We validate our DFT-MD modelling using inelastic neutron scattering which reveals anharmonicity of the hydride environment that is so pronounced that there is complete failure of the harmonic model for the hydride ligand. The simulations are extended to high temperature to bring the H-transfer to a rate that is accessible to the simulation technique. © The Royal Society of Chemistry 2015
  • Thumbnail Image
    Item type: Item ,
    Thermal residual micro-stresses and texture characterizations in NbC-Ni cemented carbides
    (European Powder Metallurgy Association, 2021-10-18) Lavigne, O; Luzin, V; Sandoval, D
    Cemented carbide composites develop very large micro-stresses due to the coefficient of thermal expansion mismatch between the metallic carbide and the binder phases. While micro-stresses developed in WC-Co/Ni systems have been investigated, so far, there is no information on the ones developed in NbC-Ni composites. This study aims to provide preliminary data on this matter. The thermal micro-stresses and texture developed in NbC-Ni systems were characterized by neutron diffraction. Stresses in the Ni phase were found to decrease with the increase of binder content in the composite material (from 7vol.% to 13vol.%) and ranged between approximately -2900 MPa to -1600 MPa, while stresses in the NbC phase were found to be relatively constant at approximately +240 MPa. The sintering temperature was found to have a major impact on the Ni grain number, with thousands of grains measured against just a few for samples sintered respectively at 1350ºC and 1450ºC.
  • Thumbnail Image
    Item type: Item ,
    Mid-infrared incoherent three-dimensional imaging using Lucy-Richardson-Rosen algorithm
    (Optica Publishing Group, 2022-07-22) Anand, V; Han, M; Maksimovic, J; Ng, SH; Katkus, T; Klein, A; Bambery, KR; Tobin, MJ; Vongsvivut, JP; Juodkazis, S
    Two computational reconstruction methods namely the Lucy-Richardson algorithm and non-linear reconstruction have been combined to develop Lucy-Richardson-Rosen algorithm. This new algorithm has been used to convert a two-dimensional infrared spectral map into a three-dimensional image. © 2022 The Author(s)
  • Thumbnail Image
    Item type: Item ,
    Tailoring exchange bias in ferro/antiferromagnetic FePt3 bilayers created by He+ beams
    (IOP Publishing, 2018-08-18) Causer, GL; Zhu, HL; Ionescu, M; Mankey, GJ; Wang, XL; Klose, F
    We report on artificial exchange bias created in a continuous epitaxial FePt3 film by introducing chemical disorder using a He+ beam, which features tailorable exchange bias strength through post-irradiation annealing. By design, the ferromagnetic (FM)/antiferromagnetic (AF) heterostructure exhibits stratified degrees of chemical order; however, the chemical composition and stoichiometry are invariant throughout the film volume. This uniquely allows for a consideration purely of the magnetic exchange across the FM/AF interface without the added hindrance of structural boundary parameters which inherently affect exchange bias quality. Annealing at 840 K results in the strongest exchange biased system, which displays a cross-sectional morphology of fine (<10 nm) domain structure composed of both of chemically ordered and chemically disordered domains. A magnetic model developed from fitting the characteristic polarised neutron reflectometry spectral features reveals that dual interactions can be attributed to the observed exchange bias: magnetic coupling at the FM/AF interface and also between neighbouring FM (chemically disordered) and AF (chemically ordered) domains within the nominally FM layer. Our results indicate that exchange bias is hindered at interfaces which are both chemically and magnetically perfect, while annealing can be used to balance the volume proportions of interfacial FM and AF domains to enhance the magnetic interface roughness for customisable exchange bias in mono-stoichiometric FM/AF heterostructures crafted by ion beams. © 2018 IOP Publishing Ltd.
  • Thumbnail Image
    Item type: Item ,
    In situ synchrotron analysis of twinning stresses in an aged Mg-4.5Zn alloy
    (Trans Tech Publications, 0201-12) Ferdowsi, MRG; Wang, J; Kada, SR; Wang, ZY; Lynch, PA; Barnett, MR
    Aging increases the yield strength of aged Mg-Zn alloys. The effect of aging on the stress required for twinning is examined using in-situ transmission based synchrotron X-ray diffraction. The as extruded material was aged at variety of temperatures for different times. It is found that increasing sample diameter (thickness) results in peak broadening. The data are analysed to establish the evolution of twin volume fraction with stress. Results indicated an increase in twinning stress at 10% twin volume fraction in aged samples in comparison with non-aged condition. The investigation showed a strong relation between the macroscopic yield stress and the twinning stress (at 10% twin volume fraction). © Trans Tech Publications