Hybrid nanocomposite coatings with multi-functionalities

Abstract

In precision engineering and electronics industry, the requirements in component specifications become increasingly stringent, which require the surfaces of products or devices with multiple functionalities. Recent technology progresses include duplex or multiple processes and hybrid material structures, which combine two or more different coating process technologies and/or incorporate two or more selected materials or phases to achieve a combination of required coating properties such as high hardness and toughness, low friction and wear coefficients, thermal and chemical stability and other functions. In this presentation, nano-phased hybrid multi-functional coating systems are reviewed. Case studies are reported using physical and chemical vapour deposition, sol-gel, anodising, electro-chemical and spray processes, respectively. The coating design concept, process combination and the product functionalities are discussed.