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Characterization of laser-irradiated surfaces of a polycrystalline diamond film with an atomic-force microscope

Bogli, U. and Blatter, A. and Bachli, A. and Luthi, R. and Meyer, E.. (1993) Characterization of laser-irradiated surfaces of a polycrystalline diamond film with an atomic-force microscope. Diamond And Related Materials, Vol. 2, H. 5-7. S. 924-927.

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Official URL: http://edoc.unibas.ch/dok/A5839505

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Abstract

A polycrystalline diamond film was etched down to a depth corresponding to the grain size with 193 nm excimer laser radiation. Below a graphitic surface layer (GL) we have observed a highly stable layer (SL) which is conducting. Atomic force microscope measurements were made in order to characterize the topography and microfriction of these two surface layers. Features of the diamond facet structure are still visible in spite of smoothening by the laser etch process. An approximation for the friction coefficient of both surface layers yields values of between 0.01 and 0.1. The friction pictures of the GL show a local period length of about 70 nm, which could be a typical diameter for micrographitic grains. The SL is more disrupted than the GL and the appearence of a period length of about 70 nm has faded discernibly.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0925-9635
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Sep 2012 07:17
Deposited On:14 Sep 2012 06:42

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