Numéro
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-255 - C1-256
DOI https://doi.org/10.1051/jp4:1997198
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-255-C1-256

DOI: 10.1051/jp4:1997198

Phase Stability and Ionic Transference Number of a Mn-Zn Spinel Ferrite

Y.-I. Jang and H.-I. Yoo

Solid State Ionics Research Lab., School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea


Abstract
The phase stability region of a MnZn ferrite, Mn0.54Zn0.35Fe2.11O4, has been determined from the isothermal variation of the total conductivity with oxygen partial pressure at elevated temperatures and its mean ionic transference number via Tubandt-type electrotransport experiments in the entire stability range of the ferrite. The ionic transference number increases with increasing oxygen partial pressure in oxidizing atmospheres and with decreasing oxygen partial pressure in reducing atmospheres, which is in accord with the Frenkel disorder as the majority defect type.



© EDP Sciences 1997