Pulsed Laser Deposition Of Diamond-Like Amorphous Carbon Films From Different Carbon Targets

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The laser-plasma method was used for a diamondlike carbon films deposition. The influence of structure of graphite targets on the characteristics films was investigated. The targets of four types were used: target N1 was made from highly oriented pyrolytic graphite, target N2 was made from pure fine-grained synthetic graphite, the target N3 was also made from graphite MG1 however it was exposed additional annealed in vacuum, the target N4 was pressed from a synthetic diamond powder. It have been shown, that the best hardness of 32 GPa has been fixed for the film deposited from annealed graphite MG1. The presence of hydrogen impurity in the carbon targets influences on the films mechanical characteristics.

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