Measurement device for determining oxygen activity in molten...

Details Measurement device for determining oxygen activity in molten... Measurement device for determining oxygen activity in molten...

Category

G - Physics

Subcategory

01

Subsubcategory

N

IPC codes

G01N 27/417 (2006.01) G01N 27/411 (2006.01)

Type

Patent

Patent number

CA 2455467

Description

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.

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