Study of dielectric behavior and electrical properties of hematite α-Fe2O3 doped with Zn | Zendy

Maria Vesikolić | Zendy; Miloš P. Slankamenac | Zendy; Nenad Nikolić | Zendy; Dalibor Sekulić | Zendy; O.S. Aleksić | Zendy; Miodrag Mitrić | Zendy; Tamara Ivetić | Zendy; Vladimir B. Pavlović | Zendy; P.M. Nikolić | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Study of dielectric behavior and electrical properties of hematite α-Fe2O3 doped with Zn

Author(s) -

Maria Vesikolić,

Miloš P. Slankamenac,

Nenad Nikolić,

Dalibor Sekulić,

O.S. Aleksić,

Miodrag Mitrić,

Tamara Ivetić,

Vladimir B. Pavlović,

P.M. Nikolić

Publication year - 2012

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1203307n

Subject(s) - hematite , spinel , dielectric , materials science , dielectric spectroscopy , analytical chemistry (journal) , grain boundary , electrical resistivity and conductivity , scanning electron microscope , conductivity , doping , phase (matter) , mineralogy , microstructure , metallurgy , composite material , chemistry , electrode , optoelectronics , electrochemistry , electrical engineering , organic chemistry , chromatography , engineering

The effects of Zn-doping on the dielectric behavior and electrical properties of bulk α-Fe2O3 have been studied. X-ray diffraction analysis revealed the presence of two phases in all samples: hematite and spinel ZnFe2O4, with the amount of spinel phase increasing with increasing Zn content. Scanning electron microscopy analysis combined with energy dispersive X-ray spectroscopy showed that the Zn-bearing phase occurred in the form of individual spinel ZnFe2O4 grains in a hematite matrix. DC conductivity was measured in the temperature range 25-225oC (298-498 K). Impedance spectroscopy measurements in the same temperature range were carried out in the frequency range 100Hz to 10 MHz. Increase in the Zn content resulted in increased electrical conductivity and higher values of the dielectric constant. The resistance and capacitance of grains and grain boundaries were analyzed by modeling the experimental results using an equivalent circuit. [Projekat Ministarstva nauke Republike Srbije, br. III 45014

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research