Furnace having ceramic heating elements

Details Furnace having ceramic heating elements Furnace having ceramic heating elements

1976-04-08

1977-08-09

Envall, Jr., R. N.

13 20, H05B 310

Patent

active

040412369

ABSTRACT:
The central cavity of the furnace is provided from the periphery to the center with a first thermal insulation, at least one element of doped lanthanum chromite, a second thermal insulation and at least one element of stabilized zirconia or thoria which permits operation of the furnace at about 2000.degree. C.

REFERENCES:
patent: 3709998 (1973-01-01), Anthony et al.

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