NONSTOICHIOMETRY (DELTA) OF (MGXFE1-X)(3-DELTA)O-4 FERRITE SPINEL

Authors
KANG SH YOO HI
Citation
Sh. Kang et Hi. Yoo, NONSTOICHIOMETRY (DELTA) OF (MGXFE1-X)(3-DELTA)O-4 FERRITE SPINEL, Solid state ionics, 86-8, 1996, pp. 751-755
Citations number
10
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
86-8
Year of publication
1996
Part
2
Pages
751 - 755
Database
ISI
SICI code
0167-2738(1996)86-8:<751:N(O(FS>2.0.ZU;2-S
Abstract
The nonstoichiometry (delta) of (MgxFe1-x)(3-delta)O-4 ferrite spinel has been measured by a coulometric titration method as a function of t he thermodynamic variables-temperature (T), oxygen partial pressure (P -o2) and Mg content (x). The nonstoichiometry amounts to +/- 1% order in its extent and varies sine-hyperbolically against P-o2. The latter is explained in terms of Frenkel disorder as the majority defect type. The effect of temperature and Mg content on nonstoichiometry is discu ssed.