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TitleCVD diamond coated silicon nitride self-mated systems : tribological behaviour under high loads
Author(s)Abreu, C. S.
Oliveira, F. J.
Belmonte, M.
Fernandes, A. J. S.
Gomes, J. R.
Silva, R. F.
KeywordsCVD diamond
Silicon nitride
Residual stresses
Issue dateFeb-2006
JournalTribology letters
Citation"Tribology letters". ISSN 1023-8883. 21:2 (Febr. 2006) 141-151.
Abstract(s)Friction and wear behaviour of self-mated chemical vapour deposited (CVD) diamond films coating silicon nitride ceramics (Si3N4) were investigated in ambient atmosphere. The tribological tests were conducted in a reciprocal motion ball-on-flat type tribometer under applied normal loads up to 80 N (~10 GPa). Several characterisation techniques - including scanning electron microscopy (SEM), atomic force microscopy (AFM) and micro-Raman studies - were used in order to assess the quality, stress state and wear resistance of the coatings. In addition, a novel method is presented to estimate the wear coefficient of the diamond coated flat specimens from AFM and optical microscopy (OM) observations of the wear tracks.
AccessOpen access
Appears in Collections:CIICS - Artigos em revistas de circulação internacional com arbitragem científica
DEM - Artigos em revistas de circulação internacional com arbitragem científica

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