ELECTROCHEMICAL OXIDATION OF CO-ZRO2(CAO) LAMELLAR EUTECTIC STRUCTURES TO FORM ALIGNED CO3O4-ZRO2(CAO) MATERIAL - MECHANISM AND CRYSTALLOGRAPHY OF THE REACTION

Authors
DHALENNE G DYVOIRE F BERTHET P REVCOLEVSCHI A
Citation
G. Dhalenne et al., ELECTROCHEMICAL OXIDATION OF CO-ZRO2(CAO) LAMELLAR EUTECTIC STRUCTURES TO FORM ALIGNED CO3O4-ZRO2(CAO) MATERIAL - MECHANISM AND CRYSTALLOGRAPHY OF THE REACTION, Solid state ionics, 63-5, 1993, pp. 396-400
Citations number
6
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
63-5
Year of publication
1993
Pages
396 - 400
Database
ISI
SICI code
0167-2738(1993)63-5:<396:EOOCLE>2.0.ZU;2-6
Abstract
Oriented lamellar eutectic composites of CoO and ZrO2 (CaO) platelets were oxidized in oxygen at 880-degrees-C to form Co3O4 between the zir conia plates. The relatively rapid longitudinal oxidation of CoO can b e described by an electrochemical local cell model whereby oxygen ions are conducted from the external surface to the internal oxidation fro nt through the zirconia electrolyte. The crystallographic relationship between the Co3O4 and ZrO2 (CaO) resulting phases is the same as that found for CoO and ZrO2 (CaO) in the starting material.