Volume 4, Issue 4 (3-2016)                   2016, 4(4): 53-66 | Back to browse issues page

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Electrostrictive Behaviour of Lead-Free (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Piezoceramics. Iranian Journal of Ceramic Science & Engineering 2016; 4 (4) :53-66
URL: http://ijcse.ir/article-1-385-en.html
Abstract:   (4828 Views)

In this work, the electrostrictive proprties of lead-free (Ba0.8Ca0.2)(Ti0.7Zr0.3)O3 piezoceramics that were synthesized via solid state sintering method were investigated. These ceramics were sintered in the sintering range of 1350-1550 °C and the effects of sintering temperature on electostrictive behavior was studied. Crystal phases and microstructure were studied with X-ray diffraction (XRD) and scanning electron microscopy (SEM) and the polarization and strain loops were used to calculate the electrostrictive coefficients. Our results revealed that the BZT-50BCT samples at 1350 °C with the highest strain and the lowest Pr values at T=100 °C showed the best electrostrictive coefficients: Q33=0.058 m4/C2, and M33=6.1×10-16 m2/V2. These values are higher than previous reports on BZT-50BCT composition and enables this material to compete with the lead-based electrorective materilas

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Type of Study: Research | Subject: Bioceramics
Received: 2016/08/1 | Accepted: 2016/08/1

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