Synthesis and characterization of doped and undoped nano-columnar DLC coating

• Main Authors: Foo, Jin Hoe, Aizawa, Tatsuhiko, Yukawa, Satoru
• Format: Article
• Language: English
• Published: Penerbit UTM Press 2013
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utm.my/id/eprint/33559/1/JT62SK_May2013_03.pdf; http://eprints.utm.my/id/eprint/33559/

Amorphous carbon (a-C:H/a-C) or Diamond-like carbon (DLC), has a very high potential diverse engineering and medical application for high wear resistance and tribological performance. Naturally grown columnar DLC films were chemically modified by post-treatment via electron beam irradiation (EB-irradiation). Precise observation and characterization is carried out by field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and Raman spectroscopy. This nano-columnar a-C:H film has a unique nano-structure and mechanical properties which composed of graphitic inter-columnar network with amorphous carbon columns. Metallic doping into the inter-columns reflects positively on mechanical response by chemical modification with physical hardening.