Effect of Sintering Conditions on Densification and Dielectric Properties of PZT Ceramics
Rungnapa Tipakontitikul*, Supon Ananta and Rattikorn Yimnirun* Author for corresponding; e-mail address: rungnapa@rocketmail.com
Volume: Vol.32 No.3 (SEPTEMBER 2005)
Research Article
DOI:
Received: -, Revised: -, Accepted: -, Published: -
Citation: Tipakontitikul R.., Ananta S.. and Yimnirun R.., Effect of Sintering Conditions on Densification and Dielectric Properties of PZT Ceramics, Chiang Mai Journal of Science, 2005; 32(3): 323-329.
Abstract
Complex perovskite-like phase of lead zirconate titanate, Pb(Zr,Ti)O3 (PZT) ceramics were fabricated with a mixed oxide synthetic route of zirconium titanate (ZrTiO4 ) and lead oxide (PbO) precursors. The effects of sintering conditions on phase formation, densification and dielectric response of PZT ceramics have been investigated using XRD, SEM, EDX and dielectric measurement techniques. The experimental results show that the densification of the PZT ceramics with density 97 % theoretical density, without any sintering additives, can be achieved with appropriate sintering condition (the optimum sintering condition has been identified as 1,225°C for 4 h). The dielectric properties increases with increasing sintering temperature and grain size. However, over 1250 °C, dielectric properties decreased due to PbO vaporization.
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