Abstract
Diamond-like carbon (DLC) films were deposited onto Ti plate substrate by means of pulsed discharge (PD) plasma chemical vapor deposition (CVD) from gas mixture of methane and hydrogen, and their structures were investigated with transmission electron microscope (TEM). When the polarity of the substrate was negative, the DLC film was grown on the substrate. The transmission electron diffraction (TED) pattern of the deposited film, which was shaved with knife from the surface of the substrate, showed that both TiC and diamond structures were formed, showing that the DLC film can be coated with good adhesion by means of the formation of TiC interlayer. The coatings of DLC films onto a stainless steel plate and a drill of WC, on which Ti film were deposited previously, was also succeeded by the PD plasma CVD method with good adhesion.
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