Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

Synthesis of PZT by Two-Step Solid State Reaction and Evaluation of the Effect of Nb2O5 Doping on Its Electrical Properties

Document Type : Original Reaearch Article

Authors
Mahya Sadat Hoseini 1
Alireza Aghaei 2
Reza Irankhah 3
Azam Moosavi Kashi 4
Reza Tabarzadi 5
1 M. Sc., Faculty of Material Engineering, Imam Khomeini International University, Ghazvin, Ghazvin, Iran
2 Associate Professor, Department of Ceramic, Materials and Energy Research Center, Karaj, Iran
3 Assistant Professor, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Semnan, Iran
4 Assistant Professor, Department of Materials Engineering, Science and Research Branch, Islamic Azad University, Tehran, Tehran, Iran
5 Assistant Professor, Department of Materials Engineering, Imam Hossain University, Tehran, Tehran, Iran
10.30501/jamt.2022.319389.1202
Abstract
Abstract     In this study, lead zirconate titanate (PZT) and Nb-doped PZT (PZTN) were synthesized by two-step solid-state reaction method. To this end, ZrTiO4 (ZT) was first synthesized at 1450 °C for four hours. In the next step, PZT was synthesized by calcination of appropriate amounts of PbO and ZT. Calcination of (PbO+ZT) was performed at 850 °C. Next, the prepared PZT powder was doped by 0.02, 0.05, and 0.12 mol % of Nb2O5. The cylindrical pellets of the PZT and PZTN powders were sintered at 1300 °C. The electrical properties of PZT and PZTN samples were studied at 1 KHz. The experimental results indicated that upon increasing the amount of Nb up to 0.05 mol % in the PZTN samples, the piezoelectric charge coefficient (d33), relative dielectric constant (εr), and dissipation factor (tanδ) would also increase. However, the increase in the amount of Nb over 0.05 resulted in a negative effect on the electrical properties. The values of the mentioned electrical properties in the 0.05Nb-doped sample were 360 pC/N, 1400, and 2.4, respectively.
Keywords
PZT
Two-Step Solid-State Synthesis
PZTN
Electrical Properties

Subjects

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Journal of Advanced Materials and Technologies
Volume 11, Issue 4
Winter 2023
Pages 55-64

  • Receive Date 14 December 2021
  • Revise Date 12 January 2022
  • Accept Date 19 January 2022