Method for forming a conductive ceramic glaze

Details Method for forming a conductive ceramic glaze Method for forming a conductive ceramic glaze

1979-05-14

1980-04-08

Silverberg, Sam

Coating processes

Mold coating

249114R, 264 61, 264 401, 324 54, 106 3827, 106 60, 106 62, H01B 108

Patent

active

041973348

ABSTRACT:
A method for forming an electrically conductive glaze upon the outer surface of a ceramic mold form including the mixing of approximately 25 percent potash feldspar, approximately 22 percent flint, approximately 7 to 8 percent calcium carbonate, approximately 1 to 2 percent ball clay, approximately 2 to 4 percent kaolin, approximately 5 percent barium carbonate and approximately 35 percent red iron oxide, all percentages being taken by weight, the method including the addition of an amount of flocculent such as 20 percent magnesium sulfate solution to control the viscosity of the solution and thereby control the thickness of the layer formed upon the external surface of the ceramic mold form, also including preferably the spraying or dipping of the mold form in the resulting solution for coating thereof as well as the firing of the coated ceramic mold form in a furnace of approximately 2200 to 2300 degrees Fahrenheit for approximately a 30 hour cycle.

REFERENCES:
patent: 2297837 (1942-10-01), Loughnane

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