Publication: Development of perovskite and phase transition in lead cobalt niobate modified lead zirconate titanate system
Issued Date
2008-03-01
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ISSN
15671739
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2-s2.0-35548958152
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Mahidol University
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SCOPUS
Bibliographic Citation
Current Applied Physics. Vol.8, No.2 (2008), 128-133
Suggested Citation
Naratip Vittayakorn, Supamas Wirunchit, Sakda Traisak, Rattikorn Yimnirun, Gobwut Rujijanagul Development of perovskite and phase transition in lead cobalt niobate modified lead zirconate titanate system. Current Applied Physics. Vol.8, No.2 (2008), 128-133. doi:10.1016/j.cap.2007.06.002 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/19404
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Title
Development of perovskite and phase transition in lead cobalt niobate modified lead zirconate titanate system
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Abstract
Ferroelectric lead zirconate titanate-lead cobalt niobate ceramics with the formula (1 - x)Pb(Zr1/2Ti1/2)O3-xPb(Co1/3Nb2/3)O3where x = 0.0-0.5 were fabricated using a high temperature solid-state reaction method. The formation process, the structure and homogeneity of the obtained powders have been investigated by X-ray diffraction method as well as the simultaneous thermal analysis of both differential thermal analysis (DTA) and thermogravimetry analysis (TGA). It was observed that for the binary system (1 - x)Pb(Zr1/2Ti1/2)O3-xPb(Co1/3Nb2/3)O3, the change in the calcination temperature is approximately linear with respect to the PCoN content in the range x = 0.0-0.5. In addition, X-ray diffraction indicated a phase transformation from a tetragonal to a pseudo-cubic phase when the fraction of PCoN was increased. The dielectric permittivity is remarkably increased by increasing PCoN concentration. The maximum value of remnant polarization Pr(25.3 μC/cm2) was obtained for the 0.5PZT-0.5PCoN ceramic. © 2007 Elsevier B.V. All rights reserved.