Influence of Pb(In1/2Nb1/2)O3 on the Phase Transitions, Electrical, and Thermal Properties of a PbZrO3 Ceramic

Authors

  • Usa Sukkha,

    1. Electroceramic Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
    2. ThEp Center, Bangkok 10400, Thailand
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  • Rangson Muanghlua,

    1. Department of Electronics, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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  • Surasak Niemcharoen,

    1. Department of Electronics, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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  • Banjong Boonchom,

    1. King Mongkut's Institute of Technology Ladkrabang, Chumporn Campus 86160, Thailand
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  • Naratip Vittayakorn

    Corresponding author
    1. Electroceramic Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
    2. ThEp Center, Bangkok 10400, Thailand
    3. Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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  • N. Alford—contributing editor

  • This research was financially supported by a grant from the program for Strategic Scholarships for Frontier Research Network for the Join Ph.D. Program Thai Doctoral degree of the Commission on Higher Education (CHE), the Thailand Research Fund (TRF), KMITL research fund, and the National Nanotechnology Center (NANOTEC) NSTDA, Ministry of Science and Technology, Thailand, through its “Center of Excellence Network” program.

†Author to whom correspondence should be addressed. e-mail: naratipcmu@yahoo.com

Abstract

The solid solution of a (1−x)PbZrO3xPb(In1/2Nb1/2)O3 (PZ–PIN) system, with x=0.00–0.50, was synthesized using the wolframite precursor method. The effects of the PIN content on the crystal structure, and the electrical and thermal properties of a PbZrO3 ceramic were investigated using X-ray diffraction, dielectric spectroscopy, hysteresis measurement, and differential scanning calorimetry techniques. Furthermore, the morphology and grain size were determined using scanning electron microscopy. The results indicated that the pure perovskite phase was obtained for all compositions, and the solid solution, PZ–PIN, changed from orthorhombic to rhombohedral symmetry when the amount of PIN increased. A ferroelectric intermediate phase began to appear between the paraelectric and the antiferroelectric phases of pure PZ, with increasing PIN content. The temperature range width of the ferroelectric phase also increased continuously with increasing PIN. At room temperature, the polymorphic phase transition (PPT) was identified from the orthorhombic to the rhombohedral phase in (1−x)PZ–xPIN at the composition, x=0.40. The ceramics (x=0.40) with PPT close to room temperature exhibited excellent electrical properties (ɛrmax=33240 and Pr=26.94 μC/cm2).

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