Journal of Materials Science: Materials in Electronics

, Volume 29, Issue 22, pp 19086–19098 | Cite as

Significant improvement in morphological, dielectric, ferroelectric and piezoelectric characteristics of Ba0.9Sr0.1Ti0.9Zr0.1O3–BaNb2O6 nanocomposites

  • Aditya Jain
  • Amrish K. PanwarEmail author
  • A. K. Jha


Multifunctional composite with material composition (1 − x)Ba0.9Sr0.1Ti0.9Zr0.1O3xBaNb2O6 (x = 0.0, 0.05, 0.1, 0.2 and 0.3) has been successfully synthesized using mechano-chemical activation process. The co-existence of perovskite tetragonal phase of BSTZ and niobate orthorhombic phase of BNO was detected by X-ray diffraction measurement and confirmed by Rietveld analysis. All the BSTZ–BNO composites show a polygonal grain type morphology with clearly visible grain boundaries. BSTZ–BNO composites possessed a thermally stable dielectric constant within a broad range of temperature. The obtained results show a strong influence of BNO addition on the microstructural, dielectric, ferroelectric, piezoelectric and breakdown strength of bare BSTZ ceramic. For x = 0.10, the composite exhibit optimum properties with high dielectric constant εm = 5842, large remnant polarization Pr = 9.25 µC/cm2, improved piezoelectric constant d33 = 296 pC/N and high breakdown strength Ebd = 304 kV/cm. The high dielectric constant accompanied by very low dielectric loss and large piezoelectric constant make BSTZ–BNO a suitable material for ceramic capacitors and electromechanical device applications.

Supplementary material

10854_2018_35_MOESM1_ESM.docx (709 kb)
Supplementary material 1 (DOCX 709 KB)


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Authors and Affiliations

  1. 1.Lithium Ion Battery Technology LabDelhi Technological UniversityNew DelhiIndia
  2. 2.Department of Applied ScienceA.I.A.C.T.R.New DelhiIndia

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