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The RGCA process was developed as a cost effective alternative to filtered arc technique.
The RGCA technique offers the coating quality comparable with quality provided by large-aperture filtered arc. An additional point to emphasize is that the advantages of the RGCA are significantly higher deposition rate and simplicity of this technique.
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Starting with the very first tests conducted in 1995 in the USA the RGCA process has proved its efficiency in many areas of applications where coating smoothness and density are the critical properties, especially in decorative, corrosion protection, forming and cutting tools.
We also see great potential in using the RGCA technique in high temperature corrosion protection in some special applications.
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The RGCA proved to be very efficient in multi-cathode batch coating systems, where filtered arc cannot be considered as a viable option due to very high equipment cost and low coating deposition rate.
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The main idea of the RGCA is preventing large droplets formation instead of filtering plasma and separating it from macroparticles â€" cathode material droplets.
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The RGCA technology currently evolved to a level that provides high system reliability and reproducibility of coatings properties.
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The process can be easily implemented by retrofitting new RGCA plasma sources with minimal modifications of an existing conventional arc system and it can be done at low additional cost.
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The RGCA process opened new technical opportunities in synthesis of smooth Si, B, C -containing hard and superhard nanocomposite coatings. Due to high level of process gas activation in the RGCA process it is possible to use gas mixtures containing safe low volumetric concentrations of some specialty gases as sources of the above mentioned alloying elements. It eliminates the need of utilization of expensive multi-component cathodes and significantly decreases coatings roughness.
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For more information, please
contact us.
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