Spark plasma sintering of hydrothermally synthesized bismuth ferrite

Branković, Zorica and Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Pajić, Damir and Marinković Stanojević, Zorica and Xing, Junwei and Radović, Miladin and Li, Guorong and Branković, Goran (2016) Spark plasma sintering of hydrothermally synthesized bismuth ferrite. Processing and application of ceramics, 10 (4). pp. 257-264. ISSN 1820-6131

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Abstract

Bismuth ferrite, BiFeO3 (BFO), powder was synthesized by ydrothermal method from Bi(NO3)3·5 H2O and Fe(NO3)3·9 H2O as precursors. The synthesized powder was further sintered using spark plasma sintering (SPS). The sintering conditions were optimized in order to achieve high density, minimal amount of secondary phases and improved ferroelectric and magnetic properties. The optimal structure and properties were achieved after spark plasma sintering at 630 °C for 20 min, under uniaxial pressure of 90 MPa. The composition, microstructure, ferroelectric and magnetic properties of the SPS samples were characterized and compared to those of conventionally sintered ceramics obtained from the same powder. Although the samples sintered using conventional method showed slightly lower amount of secondary phases, the spark plasma sintered samples exhibited favourable microstructure and better ferroelectric properties.

Item Type: Article
Keywords: BiFeO3, multiferroic, ferroelectric, antiferromagnet, spark plasma sintering, hydrothermal synthesis
Date: 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: Publisher under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Divisions: Faculty of Science > Department of Physics
Project code: UIP-2014-09-8276
Publisher: Faculty of Technology, University of Novi Sad
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 20 Sep 2017 18:56
Last Modified: 20 Sep 2017 18:56
URI: http://digre.pmf.unizg.hr/id/eprint/5581

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