Journal ArticleDOI
Surface morphology of laser deposited diamondlike films by atomic force microscopy imaging
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The surface morphologies of diamond-like carbon (DLC) films with atomic force microscopy (AFM) were reported in this article, where the films were prepared by laser ablation with tuning power densities range from 3×108 to 1×1010 W/cm2.Abstract:
The surface morphologies of diamondlike carbon (DLC) films with atomic force microscopy (AFM) are reported. The films were prepared by laser ablation with tuning power densities range from 3×108 to 1×1010 W/cm2. For power densities above 2×109 W/cm2, the films reveal smooth surfaces with uniform shapes of nanometer sized carbon clusters (sp3 bonding) and retain the surface roughness of the silicon substrate. For power densities below that, graphitic films are formed, and the surface roughness increases with decreasing laser intensity. The present AFM studies confirm that there exists a clear correlation between surface morphologies and the degree of diamondlike qualities.read more
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Journal ArticleDOI
Quantitative assessment of surface roughness as measured by AFM: application to polished human dentin
TL;DR: In this paper, the surface morphology of polished dentin has been investigated using atomic force microscopy (AFM) and Fourier transform analysis (FT) to determine surface roughness in both vertical and lateral directions.
Journal ArticleDOI
Atomic force microscope study of carbon thin films prepared by pulsed laser deposition
Tsuyoshi Yoshitake,Takashi Nishiyama,Hajime Aoki,Koji Suizu,Koji Takahashi,Kunihito Nagayama +5 more
TL;DR: Amorphous carbon films and diamond like carbon films were grown by pulsed laser deposition (PLD) using different laser wavelengths (λ=193 nm, 532 nm, 1064 nm) and substrate temperatures (from room temperature to 500°C) as discussed by the authors.
Journal ArticleDOI
AFM analysis of bleaching effects on dental enamel microtopography
Ana Carolina Pedreira de Freitas,Luciana Cardoso Espejo,Sergio Brossi Botta,Fernanda de Sá Teixeira,Maria Aparecida Alves de Cerqueira Luz,Narciso Garone-Netto,Adriana Bona Matos,Maria Cecília Barbosa da Silveira Salvadori +7 more
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Journal ArticleDOI
Ion-assisted pulsed magnetron sputtering deposition of ta-C films
TL;DR: In this article, the process of ion-assisted deposition of ta-C films by pulsed magnetron sputtering of a graphite target has been investigated and its space and time-dependent characteristics have been obtained as functions of the sputtering parameters and the bias voltage applied to the substrate.
Journal ArticleDOI
Structural models of amorphous carbon surfaces
TL;DR: In this article, the authors constructed structural models of amorphous carbon surfaces by imposing tensile strain on computer generated networks containing 512 carbon atoms until fracture is produced and two surfaces are formed.