AVS 46th International Symposium
    Vacuum Technology Division Tuesday Sessions
       Session VT-TuP

Paper VT-TuP2
Application of Porcelain Enamel as a UHV Compatible Electrical Insulator

Tuesday, October 26, 1999, 5:30 pm, Room 4C

Session: Poster Session
Presenter: M.D. Mapes, Brookhaven National Laboratory
Authors: M.D. Mapes, Brookhaven National Laboratory
H.C. Hseuh, Brookhaven National Laboratory
C. Biscardi, Brookhaven National Laboratory
Correspondent: Click to Email
Many accelerator vacuum system components require electrical insulation internal to the vacuum system. Some accelerator components at Brookhaven National Laboratory are installed in UHV vacuum systems which require the insulation to have excellent vacuum characteristics, be radiation resitant and be able to withstand high temperatures when used on baked systems. Porcelain enamel satisfies all these requirements. This paper 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 is fast, inexpensive and enviromentaly safe and most of all satisfies stringent vacuum system requirements.