Method for providing metallic carbide coatings on graphite
Patent
·
OSTI ID:4308395
Metallic or nonmetallic carbide coatings of substantially uniform thickness are provided on internal surfaces of elongated bores within a graphite substrate by vapor deposition. The coating process is achieved by the thermal decomposition of a selected halide and the inter-reaction with a hydrocarbon gas at temperatures of 900 to 1200 deg C. at atmospheric pressure. A temperature gradient along the length of the bore is used to control the coating deposition rate for providing a carbide coating of substantially uniform thickness. (Official Gazette)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-29-024832
- Assignee:
- TIC; NSA-29-024832
- Patent Number(s):
- US 3781173
- OSTI ID:
- 4308395
- Country of Publication:
- United States
- Language:
- English
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