Process for the production of an electrical insulant with a high

Details Process for the production of an electrical insulant with a high Process for the production of an electrical insulant with a high

1991-08-09

1993-08-03

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 401, 264235, 264346, B29C 7100

Patent

active

052326403

ABSTRACT:
Process for the production of an electrical insulant (5) placed in an intense electrical field, particularly between two electrodes (1, 2) of an electron tube. The insulant (5) is a crystalline material, whose free surfaces (7) in vacuo (6) have been treated so as to reduce or eliminate crystallization defects. The treatment is checked by measurements of a particular optical or mechanical property of the free surfaces. The breakdown voltage can be multiplied by three or four compared with conventional insulants and can approach the breakdown voltage of the vacuum.

REFERENCES:
patent: 2270872 (1942-01-01), Goede et al.
patent: 4069357 (1978-01-01), Miller et al.
IEEE Transactions on Electrical Insulation, vol. EI-15, No. 5, Oct. 1980, New York, pp. 419-428, Miller: "Improving the voltage holdoff . . . ".
IEEE Transactions on Electrical Insulation, vol. EI-11, No. 1, Mar. 1976, New York, pp. 32-35, Sudarshan et al: "The effect of the chromium oxide coatings on . . . ".

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