Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1997-07-18
2000-01-11
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204423, 2057835, G01N 27411
Patent
active
060131632
ABSTRACT:
A system is provided for measuring the concentration of an element in molten metal such as silicon, chromium, manganese or aluminum. The system includes a probe with a sensor having a solid electrolyte, a reference electrode in contact with a first surface of the electrolyte and an auxiliary electrode at a second surface thereof. The auxiliary electrode includes an oxide of the element to be measured and a metal-silicate selected from the group consisting of alkali metal-silicates, alkaline earth metal-silicates and mixtures thereof. The metal-silicate has a working point at about the temperature of the molten metal so as to form a viscous semi-molten mass adjacent the second surface of the electrolyte. The metal-silicate is capable of diffusing oxygen in the semi-molten state. Preferably the metal-silicate is in the form of a fibrous material so that it can be easily applied to the surface of the electrolyte.
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Abstract of Japanese Patent Application (JP 63191056).
Harbaugh Harry Kozer
Hsia Chungwei
Powers Kenneth Dwight
Riesmeyer, III W. F.
Tung T.
USX Corporation
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