Microstructure and electrical characterisations of K-modified PLZT |
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| Authors: | S R Shannigrahi R N P Choudhary H N Acharya and T P Sinha |
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| Affiliation: | (1) Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur, 721302, India;(2) Department of Physics, Bose Institute, 93/1, Acharya Prafulla Chandra Road, Calcutta, 700009, India |
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| Abstract: | Potassium-modified PLZT Pb0.92(La1 – zKz)0.08(Zr0.60Ti0.40)0.98 + 0.04zO3 (z = 0.0, 0.1, 0.3, 0.5, 0.7)] ceramics were synthesised using sol-gel technique. Preliminary structural and microstructural parameters were determined using XRD, SEM and TEM techniques. Detailed studies of dielectric properties at 10 kHz in a wide temperature range suggest that the compounds have diffuse phase transition of second order. Studies of spontaneous polarisation, pyroelectric and piezoelectric properties yielded data for devices. |
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