https://apo.ansto.gov.au/dspace/handle/10238/7 ANSTO authored book chapters 2021-02-15T06:24:53Z https://apo.ansto.gov.au/dspace/handle/10238/10321 Title: Alkali metal cation and proton conductors: relationships between composition, crystal structure, and properties Authors: Avdeev, M; Nalbandyan, VB; Shukaev, IL Abstract: This chapter contains sections titled: Principles of Classification, and General Comments; Crystal‐Chemistry Factors Affecting Cationic Conductivity; Crystal Structural Screening and Studies of Conduction Paths; Conductors with Large Alkali Ions; Lithium Ion Conductors; Proton Conductors; References. © 2009 Wiley‐VCH Verlag GmbH & Co. KGaA Description: Available in ANSTO Library at call no. 660.297/3 2009-07-15T00:00:00Z https://apo.ansto.gov.au/dspace/handle/10238/10011 Title: Defect engineering of photosensitive oxide materials. Example of TiO2 solid solutions Authors: Atanacio, AJ; Bak, T; Rahman, KA; Nowotny, J Abstract: The imperative to protect the environment from increasingly apparent climate change imposes the urgent need to reduce the emissions of greenhouse gases to the atmosphere. This, consequently, results in intensification of research in the development of new materials and devices for the generation of energy that is environmentally clean. This work considers photosensitive oxide semiconductors for solar energy conversion by light-induced water oxidation. It has been documented that the performance of oxide semiconductors for solar-to-chemical energy conversion is determined by a range of defect-related properties, including the concentration of surface active sites, Fermi level, charge transport, electronic structure, and alignment of band edges with the energy level of the redox couple. The present work considers the research strategy in processing TiO2-based semiconductors, which are the promising candidates for a new generation of solar materials. It is shown that the performance-related properties of TiO2 and its solid solutions are determined by surface versus bulk defect disorder and the associated semiconducting properties. Therefore, the development of TiO2-based materials with enhanced performance could be based on using defect engineering for imposing optimized bulk versus surface properties. In this work, we discuss a range of defect-related properties of TiO2 and its solid solutions, such as electrical and optical properties and the related photocatalytic performance. We show that the phenomenon of segregation may be used as the technology for imposition of controlled surface versus bulk defect disorder that is required for processing the systems with optimized properties. Copyright © 2018 Elsevier Inc. 2018-01-01T00:00:00Z https://apo.ansto.gov.au/dspace/handle/10238/9657 Title: Mechanical stress relaxation of a laser peened and shot peened Ni-based superalloy Authors: Chin, KS; Idapalapati, S; Paradowska, AM; Reid, M; Shukla, S; Ardi, DT Abstract: Nickel based superalloy IN718 specimens were subjected to laser peening and shot peening. The residual stress and work hardening introduced by laser peening and shot peening were characterized using neutron diffraction method and electron backscattered diffraction (EBSD). A modified set up in reflective mode was utilized during neutron diffraction to optimize the spatial and temporal resolution to perform in-situ residual stress measurements at pre-determined cycle. Residual stress relaxation was only observed in the direction of loading while the residual stress in the transverse direction remained at a similar magnitude. Residual stress relaxation was observed to be most prominent in the first cycle of fatigue at R ratio = 0.1 with little stress relaxation in subsequent fatigue load cycles. Under tensile-tensile loading, stress relaxation occurs when the superposition of tensile residual stress and applied loading exceeds the localized yield strength of the material. Stress relaxation was found to be well correlated with the magnitude of work hardening. Residual stress relaxation as a function of depth and number of cycles were also recorded to illustrate the changes in residual stress during the cyclic loading. © 2020 Springer Nature Switzerland AG. 2019-08-31T00:00:00Z https://apo.ansto.gov.au/dspace/handle/10238/9574 Title: Application of stable isotopic techniques to wetlands conservation Authors: Mazumder, D Abstract: Identification of food chain linkages between high trophic order species (particularly those of commercial and recreational importance) and different wetland resources (e.g. saltmarsh, mangrove and seagrass) is fundamental to resource management. The source of energy and trophic connectivity among species in the ecosystem can be quantified using stable isotopic techniques. Stable nitrogen isotopes can be used for tracking of pollutant derived from urban effluent or other anthropogenic sources that contribute to eutrophication and other management issues in aquatic environment. Analysis of non-radioactive, naturally occurring carbon and nitrogen isotopes is one of the most powerful techniques that can be considered in clarifying management questions related to wetland conservation. 2013-01-01T00:00:00Z