Preparation of Carbon-based Coatings of Tungsten

This invention relates to a carbon-based coating of tungsten, characterized in that: a substrate comprising carbon and tungsten coating of two parts, a dense and uniform coating layer having a thickness of tungsten is firmly attached to the surface of the carbon matrix. Pure tungsten plate as the target. Carbon material as the matrix, Select C / C composites and graphite.

Advantage of the present invention is:

A) depositing a tungsten coating speed, greatly improving the efficiency of the preparation of the coating;

B) high density plasma generated between the tungsten target cloud and carbon, a large number of tungsten atoms only covers the surface of the carbon substrate, the substrate and the back side is attached to the package tungsten coating;

C) coating the surface of a dense, no cracks;

D) coating and C / C composites bonded to the substrate better.


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