A boundaryless conversion-type SiC coating! The bond between the graphite substrate and the SiC coating is strong, resulting in a SiC coating with high thermal and mechanical stability!
SiC Gradient Coating is a "boundary-less" SiC coating that can be obtained by treating the surface of graphite through a chemical conversion process. The bond between the graphite substrate and the SiC coating is strong. The surface exhibits the excellent properties of SiC while preventing the SiC coating from being affected by thermal and mechanical loads. Applications include... ⇒ Preventing oxidation of conventional graphite materials ⇒ Improving wear resistance of conventional graphite materials ⇒ Reducing the weight of SiC components *It is also possible to perform polishing after the coating formation.
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basic information
SiC film thickness: approximately 200µm Thickness of SiC & graphite (gradient) layer: approximately 500µm <Comparison image with graphite substrate> ■ Oxidation rate ⇒ Over 90% oxidation suppression at 100℃ ■ Wear rate ⇒ More than 50% reduction in wear amount (there are also coatings with further wear suppression) *The above basic information varies depending on the graphite grade and parameters during film formation.
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Applications/Examples of results
<Usage Image> ■ Protective tube for high-temperature temperature measurement ■ Burner nozzle ■ Aluminum melting stirring rod ■ Wear-resistant sleeve ■ Other improvements in oxidation resistance and wear resistance for conventional graphite applications
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Company information
SGL Carbon Group has a sales and service network in over 100 countries worldwide and has 29 manufacturing sites. (As of October 2023) SGL Carbon Japan Co., Ltd. is a Japanese subsidiary wholly owned by the group's headquarters, SGL CARBON SE.