Dielectric and piezoelectric properties of neodymium oxide doped lead zirconate titanate ceramics

Bulletin of materials science

N C Soni²  S L Srivastava¹  Janardan Singh² 

[1] Department of Physics and M.N. Saha Centre of Space Studies, University of Allahabad, Allahabad 211 002, India$$Department of Physics and M.N. Saha Centre of Space Studies, University of Allahabad, Allahabad 211 002, IndiaDepartment of Physics and M.N. Saha Centre of Space Studies, University of Allahabad, Allahabad 211 002, India$$;Electroceramics (Ultrasonic Groups), National Physical Laboratory, Dr K S Krishnan Road, New Delhi 110 012, India$$Electroceramics (Ultrasonic Groups), National Physical Laboratory, Dr K S Krishnan Road, New Delhi 110 012, IndiaElectroceramics (Ultrasonic Groups), National Physical Laboratory, Dr K S Krishnan Road, New Delhi 110 012, India$$

关键词: Nd doped lead zirconate titanate;    piezoelectric properties;    ferroelectric materials;    electromechanical parameters;    vector impedance measurements.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

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 (0.1 to 7 mol%) in [Pb(Zr, Ti)O₃] near morphotropic phase boundary. Piezoelectric equivalent circuit parameters ð‘�??, 𝐿, $C_a$ in series and $C_b$ in parallel have been determined by simulating /Z/ and ð›�? 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.

【 授权许可】

Unknown