G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/417 (2006.01) G01N 27/411 (2006.01)
Patent
CA 2455467
The invention relates to a measurement device for determining the oxygen activity in molten metal or slag with a measurement head, which is arranged at one end of a carrier tube and on which an electrochemical measurement cell is arranged. The electrochemical measurement cell has a solid electrolyte tube, which is closed at one end and which contains a reference material and an electrode at its closed end. The electrode projects from the opposite end of the solid electrolyte tube. The invention also relates to a corresponding solid electrolyte tube. The invention is characterized in that the outer surface of the solid electrolyte tube has a coating of a mixture of calcium zirconate with a fluoride.
Heraeus Electro-Nite International N.v.
Macrae & Co.
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