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Title

High-resolution imaging of (100) kyanite surfaces using friction force microscopy in water

AuthorsPimentel, Carlos ; Gnecco, Enrico; Pina, Carlos M.
KeywordsKyanite
Friction force microscopy
Mineral surfaces
Nanotribology
Aqueous environment
Issue Date24-Jan-2015
PublisherElsevier
CitationSurface science, 635: 123-127 (2015)
AbstractIn this paper, we present high-resolution friction force microscopy (FFM) images of the (100) face of kyanite (Al2SiO5) immersed in water. These images show an almost rectangular lattice presumably defined by the protruding oxygen of AlO6 polyhedra. Surface lattice parameters measured on two-dimensional fast Fourier transform (2D-FFT) plots of recorded high-resolution friction maps are in good agreement with lattice parameters calculated from the bulk mineral structure. Friction measurements performed along the [001] and [010] directions on the kyanite (100) face provide similar friction coefficients μ ≈ 0.10, even if the sequences of AlO6 polyhedra are different along the two crystallographic directions.
Publisher version (URL)http://dx.doi.org/10.1016/j.susc.2015.01.008
URIhttp://hdl.handle.net/10261/117575
DOI10.1016/j.susc.2015.01.008
ISSN10.1016/j.susc.2015.01.008
Appears in Collections:(IGEO) Artículos
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