Application of porcelain enamel as an ultra-high-vacuum-compatible electrical insulator
- Brookhaven National Laboratory, Upton, New York 11973 (United States)
Many accelerator vacuum system components require electrical insulation internal to the vacuum system. Some accelerator components at Brookhaven National Laboratory are installed in ultra-high-vacuum systems which require the insulation to have excellent vacuum characteristics, be radiation resistant, and be able to withstand high temperatures when used on baked systems. Porcelain enamel satisfies all these requirements. This article describes the process and application of coating metal parts with porcelain enamel to provide electrical insulation. The mechanical and vacuum testing of Marman flanges coated with porcelain and using metal Helicoflex seals to form a zero-length electrical break are detailed. The use of porcelain enameled parts is attractive since it can be done quickly, is inexpensive and environmentally safe, and most of all satisfies stringent vacuum system requirements. (c) 2000 American Vacuum Society.
- OSTI ID:
- 20217057
- Journal Information:
- Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films, Vol. 18, Issue 4; Other Information: PBD: Jul 2000; ISSN 0734-2101
- Country of Publication:
- United States
- Language:
- English
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