Effect of Sintering Time on Dielectric and Piezoelectric Properties of Lanthanum Doped Pb(Ni1/3Sb2/3)-PbZrTiO3 Ferroelectric Ceramics

  • C. M. Lonkar Armament Research & Development Establishment, Pune
  • D. K. Kharat Armament Research & Development Establishment, Pune
  • H. H. Kumar Armament Research & Development Establishment, Pune
  • Sahab Prasad Defence Institute of Advanced Technology, Pune
  • K. Balasubramanian Defence Institute of Advanced Technology, Pune
DOI: https://doi.org/10.14429/dsj.63.4866
Keywords: Power harvesting, energy harvesting, PNS-PZT ceramics, sintering time effect, piezoelectric

Abstract

produce electrical output in response to ambient pressures, vibrations, movements etc. In the present studies, sintering time for composition Pb0.98La0.02(NiSb)0.05[(Zr0.52Ti0.48)0.995]0.95O3 (La-PNS-PZT) was optimised to achieve properties suitable for power harvesting. Composition was processed through mixed oxide route and sintered at 1270 °C for 20 min, 40 min, 60 min, 80min and 100 min. XRD pattern indicated the presence of both, ferroelectric tetragonal and ferroelectric rhombohedral perovskite phases. The optical photographs shown the uniform and dense microstructure for the samples sintered for 60 min, resulted into optimum piezoelectric charge coefficient, voltage coefficient, electromechanical coupling coefficient and figure of merit. Power harvesting capabilities in response to impact of stainless steel ball (8.25 gm) from 150 mm height were evaluated and compared with PZT type 5A. La-PNS-PZT produced batter electrical output (5.11 W, 71.13 μJ) across the matching load resistance of 4000 Ω and 2.08 W maximum power and 20.79 μJ energy by PZT type 5A disc across the matching load resistance of 1000 Ω.

Defence Science Journal, 2013, 63(4), pp.418-422, DOI:http://dx.doi.org/10.14429/dsj.63.4866

Author Biographies

C. M. Lonkar, Armament Research & Development Establishment, Pune
Dr C M Lonkar received PhD (Materials Science) from Defence Institute of Advanced Technolgy, Pune. He has published 11 research papers in peer-reviewed international journals, conferences & symposia. Presently, he is working in DRDO Centre for Piezoceramics and Devices at ARDE. His area of interest includes developing various grades of PZT based ferroelectric materials and devices.
D. K. Kharat, Armament Research & Development Establishment, Pune
Dr D K Kharat is Director, Armaments, at DRDO Headquarters, New Delhi. Prior to this, he was Associate Director at ARDE, Pune. He has a wide experience in the area of advanced composites, piezoceramics and nano materials for light weight launchers, under water sensors and hydrophones etc. He has published 120 research papers in national and international peer-reviewed journals, symposia and seminars.
H. H. Kumar, Armament Research & Development Establishment, Pune
Mr HH Kumar, Sc G obtained his MSc (Physics) from Pune University. He joined DRDO at NPOL, Kochi, in 1986 and presently heads DRDO Centre for Piezoceramics and Devices at ARDE. He has published 26 research papers in peer-reviewed journals and over 52 papers in conferences/seminars. He also possesses 3 Indian patents to his credit. He is presently working on nano materials and energy harvesting applications.
Sahab Prasad, Defence Institute of Advanced Technology, Pune
Dr Sahab Prasad Sc F (retd.) is PhD from IIT. He joined DRDO at INS Shivaji in June 1983 and subsequently transferred to Defence Institute of Advanced Technology, Pune. He was Head of the Materials Engineering Department and shouldered the responsibilities of Controller of Examinations. He has supervised several PG and PhD students and authored several research papers and technical reports.
K. Balasubramanian, Defence Institute of Advanced Technology, Pune
Dr Balasubramanian K., PhD (UK), CEng. (UK), MIMMM, FIoN (UK), Head of Materials Engineering Department, DIAT Pune, graduated with an honours degree in Chemical Technology specialising and Masters degree in Chemical Technology, specialising in Plastics Processing. He has a PhD in Materials Engineering from Loughborough University, UK. He has a total of 17 years of industrial and research experience in UK in the areas of polymer composites, plastics engineering, nanocomposites, ceramics and elastomers, coatings and advanced materials. He has filed 10 international/ national patents and has transferred technologies to automotive, aerospace and health care industries.
Published
2013-07-01
How to Cite
Lonkar, C., Kharat, D., Kumar, H., Prasad, S., & Balasubramanian, K. (2013). Effect of Sintering Time on Dielectric and Piezoelectric Properties of Lanthanum Doped Pb(Ni1/3Sb2/3)-PbZrTiO3 Ferroelectric Ceramics. Defence Science Journal, 63(4), 418-422. https://doi.org/10.14429/dsj.63.4866
Issue
Vol 63 No 4
Section
Materials Science & Metallurgy
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