Dielectric and piezoelectric properties of neodymium oxide doped lead zirconate titanate ceramics |
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| Authors: | Janardan Singh N C Soni S L Srivastava |
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| Affiliation: | (1) Electroceramics (Ultrasonic Groups), National Physical Laboratory, Dr K S Krishnan Road, 110 012 New Delhi, India;(2) Department of Physics and M.N. Saha Centre of Space Studies, University of Allahabad, 211 002 Allahabad, India |
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| Abstract: | The dielectric and electromechanical properties of lead zirconate titanate [Pb(Zr, Ti)O3] ceramic added with neodymium oxide have been systematically studied employing the vector impedance spectroscopic (VIS) technique. The specimens were prepared using the mixed oxide route by adding different mol% of Nd2O3 (01 to 7mol%) in [Pb(Zr, Ti)O3] near morphotropic phase boundary. Piezoelectric equivalent circuit parameters R, L, Ca in series and Cb in parallel have been determined by simulating /Z/ and Θ plots. Electromechanical coupling coefficients and strain constants for the radial modes show a peak at about 3 mol%, the dielectric constant peaks at about 1 mol% and voltage constants peak at about 0–75 mol% of Nd2O3. |
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| Keywords: | Nd doped lead zirconate titanate piezoelectric properties ferroelectric materials electromechanical parameters vector impedance measurements |
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