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Interfacial Reactions

Primary Investigator: Prof. Mag. Dr. Rainer Abart
Funding Organisation: European Commission

Abstract: Multidisciplinary including geoscience, microscopy, and materials physics will be carried on to interpret the growth process of mineral and rock, especially the elemental diffusion and dislocation configuration on the interface. Interface of rocks such as Al2O3/MgO will be fabricated using Pulsed Laser Deposition (PLD), and be annealed in different temperatures in order to achieve different growth stages. The combination of Electron Backscatter Diffraction (EBSD), Focused Ion Beam (FIB) and low kV Argon-milling will be used to prepare specimens for the microscopy research. Aberration-corrected scanning transmission electron microscopes (STEM) with sub-Å resolution will be employed to resolve the atomic structure of interfaces. Also available with STEM, electron energy loss spectroscopy (EELS) will be used to reveal elemental distributions and bonding states near the interface. The samples grown in different stages with different annealing temperatures will be compared; therefore the relationship between the structure and the growth conditions will be understood.

Department of Lithospheric Research
University of Vienna
Althanstraße 14 (UZA II)
1090 Vienna

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