Dependence of dielectric behaviour of Mn-Zn ferrite on sintering temperature

Authors
Ahmed, MA El-Khawas, EH Radwan, FA
Citation
Ma. Ahmed et al., Dependence of dielectric behaviour of Mn-Zn ferrite on sintering temperature, J MATER SCI, 36(20), 2001, pp. 5031-5035
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
00222461 → ACNP
Volume
36
Issue
20
Year of publication
2001
Pages
5031 - 5035
Database
ISI
SICI code
0022-2461(200110)36:20<5031:DODBOM>2.0.ZU;2-G
Abstract
The dielectric constant of Mn-Zn ferrite was measured at different temperat ure and frequencies as a function of sintering temperature ranging from 120 0 degreesC to 1400 degreesC at heating rate of 6 degreesC/min. The resistiv ities as well as Seebeck coefficient were measured in the same range of tem perature. More than one type of polarization is expected to vary the dielec tric constant. Hoping mechanism was the predominant one in conduction proce sses. The grain size was calculated from X-rays and SE micrographs and it w as found to decrease with increasing sintering temperature. (C) 2001 Kluwer Academic Publishers.