MECHANISMS OF MULTI-FUNCTIONAL LAYER COATINGS BASED ON SILICON CARBIDE

• Main Authors: V. N. Kovalevsky, A. E. Zhuk
• Format: Article
• Language: Russian
• Published: Belarusian National Technical University 2010-12-01
• Series: Nauka i Tehnika
• Online Access: https://sat.bntu.by/jour/article/view/559

The paper investigates regularities pertaining to structure formation in a thin-film coating applied on diamond crystals by magnetron dispersion of a combined cathode (Si + C). It has been  established that an amorphous layer of  Si and C atom mixture is formed in the condensation process of a thin-film coating (up to 20 µm) and its glow-discharge plasma processing  is accompanied by action of plasma particles along with formation of surface  waves that contributes to transfer of  active carbon atoms and formation of stronger Si – C connection. Structure formation in coatings (Si + C) with thickness over 100 µm proceeds according to diffusion mechanism at low temperatures (650–850ºС) with  formation of α-SiC with  an  amorphous layer. Solid-phase reactive sintering of simple elements (silicon and carbon) in nano-coatings obtained with the help of diamond powders allows to make composites of such powders with the given complex of properties due to control of  structure of particle-connection zone on atom-cluster levels.