Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/13986
Title: TEM studies of ion-irradiation tolerance in Gd2TiO5
Authors: Aughterson, RD
Cairney, JM
Gault, B
Ridgway, MC
Elliman, RG
Lumpkin, GR
Keywords: Transmission electron microscopy
Ions
Irradiation
Waste forms
X-ray diffraction
Amorphous state
Issue Date: 7-Feb-2012
Publisher: Australian Nanotechnology Network
Citation: Aughterson, R. D., Cairney, J., Gault, B., Ridgway, M., Elliman, R.G., & Lumpkin, G. R. (2012). TEM studies of ion-irradiation tolerance in Gd2TiO5. Paper presented to the APMC10 10th Asia-Pacific Microscopy Conference, ICONN2012 International Conference on Nanoscience and Nanotechnology, ACMM 22 Australian Conference on Microscopy and Microanalysis, Perth Convention and Exhibition Centre, 5-9 February 2022, Perh WA Australia. In Griffin, B., Faraone, L. & Martyniuk, M., (eds), APMC10: 10th Asia-Pacific Microscopy Conference, ICONN2012: International Conference on Nanoscience and Nanotechnology, ACMM 22: Australian Conference on Microscopy and Microanalysis, Perth Convention and Exhibition Centre : conference proceedings, 5-9 February 2012. (pp. 416-1-416-3).
Abstract: Gd2TiO5 has been identified as a potentially useful material for nuclear based applications such as burnable poison or constituent in waste-forms. A polycrystalline, single phase sample of Gd2TiO5 has been fabricated via the oxide-route reaction. The single phase status and chemical stoichiometry were confirmed using SEM backscattered images, EDS, and laboratory XRD. The structure was confirmed to be orthorhombic, Pnma, space group number 62. The suitability of use for this material in a radioactive environment was tested by in-situ measurement of the materials resistance to transformation from the crystalline to amorphous state via 1MeV Kr2+ ion-irradiation. The in-situ ion-irradiation was carried out using the intermediate voltage electron microscope (IVEM)-Tandem facility at Argonne National Laboratory. The critical dose, Dc, required to render the Gd2TiO5 completely amorphous was determined and the result is compared with other similarly tested materials. Further bulk gold ion-irradiation at various accelerating energies was carried out at the Australian National University using the TANDEM accelerator with damage penetration depth characterised using cross-sectional TEM.
URI: https://apo.ansto.gov.au/dspace/handle/10238/13986
ISBN: 9781740522458
Appears in Collections:Conference Publications

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