Structural and electrical properties of Ti doped α-Fe2O3 | Zendy

Maria Vesikolić | Zendy; Dalibor Sekulić | Zendy; Nenad Nikolić | Zendy; Miloš P. Slankamenac | Zendy; O.S. Aleksić | Zendy; Herbert Danninger | Zendy; E. Halwax | Zendy; Vladimir B. Pavlović | Zendy; P.M. Nikolić | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Structural and electrical properties of Ti doped α-Fe2O3

Author(s) -

Maria Vesikolić,

Dalibor Sekulić,

Nenad Nikolić,

Miloš P. Slankamenac,

O.S. Aleksić,

Herbert Danninger,

E. Halwax,

Vladimir B. Pavlović,

P.M. Nikolić

Publication year - 2013

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/sos1303281n

Subject(s) - hematite , materials science , doping , electrical resistivity and conductivity , grain boundary , analytical chemistry (journal) , mineralogy , solubility , chemical engineering , metallurgy , microstructure , chemistry , electrical engineering , optoelectronics , chromatography , engineering

In this work we have analyzed the effects of Ti doping on structural and electrical properties of α-Fe2O3. When the amount of added Ti (5 wt.%TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3) Å, c=13.7484(1) Å slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.%TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100 - 1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution. [Projekat Ministarstva nauke Republike Srbije, br. III45014 i br. III43008

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