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US 6,605,352 B1Granted
Corrosion and erosion resistant thin film diamond coating and applications therefor
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorHenry Windischmann
Life of this patent
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Abstract
A thin film diamond coating is formed relatively slowly with a relatively low methane concentration and is identified by its Raman spectrographic characteristics. The thin film diamond, preferably 5 to 40 microns thick, provides substantially greater corrosion and erosion resistance in a corrosive environment than other thin film diamond coatings. It is believed that such thin film diamond coating is provided with enhanced chemical resistance due to its purity and quality.
Claims6
A protective coating for use on a surface of an article in a corrosive environment, consisting of:
- a polycrystalline diamond film material made by chemical vapor deposition having a thermal conductivity greater than 1000 W/mK and a Raman Full Width at Half Maximum of less than 10 cm−1, said diamond film material having a thickness not greater than 150 microns.
Dependencies are inferred from the claim text.