| 摘要 |
<p>1501708 Solid electrolyte oxygen probe MECI MATERIAL ELECTRIQUE DE CONTROL ET INDUSTRIEL 24 April 1975 [6 May 1974] 16947/75 Heading G1N The response time of a solid electrolyte probe with metal and/or metal oxide reference for measuring oxygen content of molten metal is reduced by an ecothermic reaction in the reference medium. The reaction is preferably a redox reaction which is initiated by the molten metal bath and the reaction products do not substantially modify the reference pressure. The reaction is caused by the presence of a different metal and/or a different metal oxide in the reference medium, the added material being determined from the following conditions:- (a) The reference is a metal and/or its lowest oxide and a metal having a greater affinity for oxygen is added. When the metals are from the list Ni, Co, Mo, Cr, Mn, Ta, V, "Si", Ti, Mg, Al and Zr, the reference may be any of the first four and the added metal any one following the reference. (b) The reference is a metal and optionally its lowest oxide and an oxide of a metal having a lower affinity for oxygen is added. When the metals are from the list Fe, Cu, Ni, Co, Mo and Cr, the reference may be any of the last four and the added oxide that of any metal preceding the reference. (c) A combination of (a) and (b). When the metals are from the list Fe, Cu, Ni, Co, Mo, Cr, Mn, Ta, V, "Si", Ti, Mg, Al and Zr, the reference may be one of Ni, Co, Mo and Cr, the added metal one which follows the reference and the added oxide of a metal which precedes the reference. Calculations for the amounts of each material are quoted and details of unsuitable or unsafe combinations are given.</p> |
