Dielectric and piezoelectric properties of neodymium oxide doped lead zirconate titanate ceramics
2003; Springer Science+Business Media; Volume: 26; Issue: 4 Linguagem: Inglês
10.1007/bf02711183
ISSN0973-7669
AutoresJanardan Singh, N.C. Soni, S. L. Srivastava,
Tópico(s)Acoustic Wave Resonator Technologies
ResumoThe 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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