Zirconia oxygen sensor

Details Zirconia oxygen sensor Zirconia oxygen sensor

1991-06-18

1994-01-11

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204422, 204423, 204413, G01N 2726

Patent

active

052777812

ABSTRACT:
A zirconia oxygen sensor for measuring oxygen potential in the molten bath of a metal or alloy having a melting point of 350-550.degree. C., which comprises a reference electrode which is of a substance having a melting point of the same level as or lower than the metal or alloy of which the oxygen potential is to be measured and being liquid at the measurement temperature and is open to the atmosphere, a vessel of a zirconia solid electrolyte containing 5-10% yttria or 10-20% of calcium oxide (CaO) and a lead wire which connects the reference electrode and said molten metal or alloy and its use are disclosed.

REFERENCES:
patent: 4166019 (1979-08-01), Roy et al.
patent: 5096552 (1992-03-01), Fray
patent: 5112456 (1992-05-01), Worrell et al.

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