Coating processes – Electrical product produced – Hollow article
Patent
1982-06-16
1983-11-08
Hoffman, James R.
Coating processes
Electrical product produced
Hollow article
204181R, 427237, 427249, B05D 722, B05D 314, B05D 302
Patent
active
044142447
ABSTRACT:
A method of treating the interior surfaces of a waveguide to improve power transmission comprising the steps of mechanically polishing to remove surface protrusions; electropolishing to remove embedded particles; ultrasonically cleaning to remove any residue; coating the interior waveguide surfaces with an alkyd resin solution or electrophoretically depositing carbon lamp black suspended in an alkyd resin solution to form a 1.mu. to 5.mu. thick film; vacuum pyrolyzing the film to form a uniform adherent carbon coating.
REFERENCES:
patent: 3037923 (1962-06-01), Gnau
patent: 3945898 (1976-03-01), Tsuji et al.
Dorofeyuk et al., "Electron Discharge in the Interaction of Microwave Radiation with a Metal Surface", Sov. Phys. Tech. Phys., vol. 21, No. 1, Jan. 1976, pp. 76-80.
Timberlake et al., Abstract of "Surface Modification of PLT Lower Hybrid Waveguides to Improve Operations", Jun. 18, 1981.
Cohen Samuel A.
Manos Dennis M.
Moore Richard L.
Ruzic David N.
Timberlake John R.
Besha Richard G.
Hoffman James R.
Rees Walter L.
The United States of America as represented by The United States
Walder Jeannette M.
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