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University of South Florida

Materials Science and Engineering

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Full-Text Articles in Mechanical Engineering

Diamond Based-Materials: Synthesis, Characterization And Applications, Qiang Hu Jan 2011

Diamond Based-Materials: Synthesis, Characterization And Applications, Qiang Hu

Graduate Theses and Dissertations

The studies covered in this dissertation concentrate on the various forms of diamond films synthesized by chemical vapor deposition (CVD) method, including microwave CVD and hot filament CVD. According to crystallinity and grain size, a variety of diamond forms primarily including microcrystalline (most commonly referred to as polycrystalline) and nanocrystalline diamond films, diamond-like carbon (DLC) films were successfully synthesized. The as-grown diamond films were optimized by changing deposition pressure, volume of reactant gas hydrogen (H2) and carrier gas argon (Ar) in order to get high-quality diamond films with a smooth surface, low roughness, preferred growth orientation and high sp3 bond ...