Nano-terracing on polycrystalline palladium induced via simple heat treatment
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Peer-reviewed
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Article
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Authors
Sobral, JM
Clyne, TW
Rezk, R
Markaki, AE
Abstract
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.
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Keywords
surface diffusion, oxides, surface energy, AFM, terraces
Journal Title
Scripta Materialia
Conference Name
Journal ISSN
1359-6462
Volume Title
130
Publisher
Elsevier
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Sponsorship
European Research Council (240446)
This research was supported by the EPSRC (EP/E025862/1) and the European Research Council (grant no. 240446).