Nano-terracing on polycrystalline palladium induced via simple heat treatment
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Sobral, J., Clyne, B., Rezk, R., & Markaki, A. (2017). Nano-terracing on polycrystalline palladium induced via simple heat treatment. Scripta Materialia, 130 17-21. https://doi.org/10.1016/j.scriptamat.2016.11.007
This paper concerns formation of terraces on polycrystalline Pd, via heat treatments followed by quenching with gas jets. The driving force for terrace formation is the crystallographic anisotropy of the surface energy. Information is presented regarding the surface topography of the terraces and of the grain boundary regions. Typically, the step heights are about 50 nm and the widths of the faces between them are around 1 μm. It is shown that a measure of control can be exercised over the structures produced, although they are determined by a complex interplay of related effects.
surface diffusion, oxides, surface energy, AFM, terraces
This research was supported by the EPSRC (EP/E025862/1) and the European Research Council (grant no. 240446).
European Research Council (240446)
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External DOI: https://doi.org/10.1016/j.scriptamat.2016.11.007
This record's URL: https://www.repository.cam.ac.uk/handle/1810/261855