Abstract

Hard B-C-N mixed films were deposited by radio frequency (RF) sputtering using both hexagonal boron nitride (BN) and graphite (C) semicircular tareets. Vickers hardness, nano-indentation hardness and microwear resistance were evaluated. (1) The hardness of B-C-N mixed film is higher than that of C-N and B-N films. New hard B-C-N films were obtained under proper bias voltage and flow rate conditions. (2) Nano-indentation hardness showed similar results as Vickers hardness. Nano-indentation clarified the value on the hardness of the thin film, although Vickers hardness was influenced by the hardness of the substrate. (3)Microwear tests using an atomic force microscope demonstrated the excellent microwear resistance of B-C-N material element mixed film.

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