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BiFeO3 synthesis by conventional solid-state reaction

Conference Paper (2019)
Author(s)

A. Yu Tuluk (TU Delft - Aerospace Engineering)

T. R. Mahon (TU Delft - Aerospace Engineering)

S. Van Der Zwaag (TU Delft - Aerospace Engineering)

Pim Groen (TU Delft - Aerospace Engineering)

Research Group
Novel Aerospace Materials
DOI related publication
https://doi.org/10.1109/ISAF43169.2019.9034976 Final published version
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Publication Year
2019
Language
English
Research Group
Novel Aerospace Materials
Article number
9034976
ISBN (electronic)
9781538694640
Event
2019 IEEE International Symposium on Applications of Ferroelectrics, ISAF 2019 (2019-07-14 - 2019-07-19), Lausanne, Switzerland
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Abstract

BiFeO3 is a multiferroic material with the perovskite structure which is promising for use in sensors and transducers. Single phase production of BiFeO3 remains a challenge, however. In this study, the optimal calcination temperature to obtain close to single phase powder was determined to be 750°C. The sintering temperature of 775°C was also found to obtain high density ceramics (≈ 95 % of theoretical density). It is shown that off-stoichiometry of bismuth oxide in precursors effects the content of secondary phase. Impedance spectroscopy indicates that the content of secondary phases has a large effect on the electrical conductivity BiFeO3.

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