Characterization and microstructure of porous lead zirconate titanate ceramics |
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Authors: | B Praveenkumar H H Kumar D K Kharat |
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Affiliation: | (1) PZT Centre, Armament Research and Development Establishment, 411 021 Pune, India |
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Abstract: | Porous lead zirconate titanate (PZT) ceramics are widely used because of their low acoustic impedance, high figure of merit
and high hydrostatic sensitivity. In the present work, porous PZT ceramics were fabricated by incorporating polyethylene oxide
(PEO) as pore-forming agent. Both PZT powder and PEO were mixed with a binder at different ratios and compaction was carried
out. The samples were slowly heated to remove the pore-forming agent and binder without cracks, followed by controlled sintering
and electrode forming. Samples were poled using corona poling technique. The ferroelectric properties and microstructure of
the prepared ceramics were characterized. The correlation of porosity with microstructure and ferroelectric properties were
discussed. |
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Keywords: | Porous PZT corona poling ferroelectric properties |
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