A Novel Approach to the Oxygen Activity Microdetermination of Oxides by EMF Measurements

被引：17

作者：

Mari, C. M. ^{[1
]}

Pizzini, S. ^{[2
]}

Manes, L. ^{[3
]}

Toci, F. ^{[3
]}

机构：

[1] Univ Milan, Dept Electrochem, Milan, Italy

[2] Montedison SpA, G Donegani Res Inst, I-28100 Novara, Italy

[3] Commiss European Communities, Joint Res Ctr, European Inst Transuranium Elements, D-7500 Karlsruhe, Germany

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1977年 / 124卷 / 12期

关键词：

solid electrochemical cells; cerium oxide; (Pu-U) mixed oxides; oxygen chemical potential determination;

D O I：

10.1149/1.2133171

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel use of solid-state galvanic cells for the determination of thermodynamic properties of oxides by employing mg amounts of powder instead of presintered pellets is described. The oxides which were investigated all belong to the rare earths and actinide family, and present enhanced ionic and electronic mobilities Which are essential for performing these kind of measurements. The advantage of this method is to allow a fast and direct sampling of oxide fuel rods which is normally carried out by chemical methods. Some examples of this technique are given.

引用

页码：1831 / 1836

页数：6

共 16 条

[1]

ALCOCK CB, 1972, CAN METALL QUART, V11, P559

[2] MIXED OXIDES OF THE TYPE MO2 (FLUORITE)-M2O3 .1. OXYGEN DISSOCIATION PRESSURES AND PHASE RELATIONSHIPS IN THE SYSTEM CEO2-CE2O3 AT HIGH TEMPERATURES [J].