Evolution of piezoelectric response in (1-x)KNbO3-x(Ba0.5Bi0.5)(Nb0.5Zn0.5)O3 ceramics

PASCUAL-GONZALEZ, Cristina, STERIANOU, Iasmi and FETEIRA, Antonio (2017). Evolution of piezoelectric response in (1-x)KNbO3-x(Ba0.5Bi0.5)(Nb0.5Zn0.5)O3 ceramics. In: GEORGE, Thomas, DUTTA, Achyut K. and ISLAM, M. Saif, (eds.) Micro- and Nanotechnology Sensors, Systems, and Applications IX. SPIE Proceedings (10194). SPIE Publications, p. 1019430.

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Official URL: https://doi.org/10.1117/12.2262811
Link to published version:: https://doi.org/10.1117/12.2262811
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    Dense (x)KNbO3-x(Ba1/2Bi1/2)(Zn1/2Nb1/2)O3 (0 ≤ x ≤ 0.25) ceramics were prepared by the solid state reaction method. X-ray diffraction data show the average crystal structure to evolve from orthorhombic at x = 0 to pseudocubic at x = 0.25. Raman spectroscopy suggests the absence of polar order for x ≥ 0.25 ceramics. Polarisation versus electrical field measurements show a continuous decrease in the spontaneous polarisation with increasing x. Electrical-field-induced strain measurements reveal a piezoelectric-to-electrostrictive crossover. An electrostriction coefficient of 0.043 m4/C2 was measured for x = 0.15.

    Item Type: Book Section
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Corrosion Technology
    Identification Number: https://doi.org/10.1117/12.2262811
    Page Range: p. 1019430
    Depositing User: Carmel House
    Date Deposited: 24 Aug 2017 10:55
    Last Modified: 24 Aug 2017 10:55
    URI: http://shura.shu.ac.uk/id/eprint/16474

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