Development of an oxygen sensor for molten 44.5% lead-55.5% bismuth alloy

被引：27

作者：

Fernández, JA ^{[1
]}

Abellà, J ^{[1
]}

Barceló, J ^{[1
]}

Victori, L ^{[1
]}

机构：

[1] Univ Ramon Llull, ETS Inst Quim Sarria, Electrochem Methods Lab, Dept Analyt Chem, Barcelona 08017, Spain

来源：

JOURNAL OF NUCLEAR MATERIALS | 2002年 / 301卷 / 01期

关键词：

D O I：

10.1016/S0022-3115(01)00727-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A potentiometric sensor for measuring oxygen activity in molten 44.5% lead-55.5% bismuth alloy is under development. Three parts form this sensor: an In/In2O3 reference electrode, a ZrO2/Y2O3 solid electrolyte, and a molybdenum working electrode. The oxygen partial pressure in the melt is calculated applying the Nernst equation to the potential difference measured by the sensor. The minimum oxygen partial pressure detected by this sensor is 10(-40) bar. The sensor has been calibrated with the following metal/metal oxide mixtures: Pb-Bi/PbO, Pb/PbO, Sn/SnO2, and Bi/Bi2O3. Reproducible measurements of the oxygen pressure of PbO formation have been obtained. The sensor performance has been evaluated in 99.999% N-2 and air (20% O-2) environments. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：47 / 52

页数：6

共 10 条

[1]

ALCOCK CB, 1971, CAN METALL QUART, V10, P257

[2]

ALCOCK CB, 1992, REV INT HAUTES TEMP, V28, P1

[3]

Barin I., 1989, THERMOCHEMICAL DATA

[4]

ETSELL T, 1981, SOLID STATE IONICS, V34, P621