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Proceedings Paper

Complex rare-earth-substituted lead titanate piezoceramics II
Author(s): Elena E. Dimitriu; Floriana Craciun; Rodica Ramer; Gabriel Prodan; Victor Ciupina
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Paper Abstract

Rare earth substituted piezoelectric ceramics with the composition PbxREyTi0.98Mn0.02O3, with RE = Pr, Pr+Eu, Gd+Nd, and a few percent of bismuth to partially substitute the lead, have been prepared by solid state reaction of oxide powders. Structural and morphological investigations were performed on the poled samples. The uses of high-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) have shown the domain structure and the formation of the tetragonal perovskite phase. A non-destructive analysis of the elemental distribution on the surface of the samples has been performed by the electron probe microanalyzer. Samples with diameter 10mm and thickness 1mm have been employed for electrical characterization. Material coefficients have been investigated as a function of temperature. The dielectric permittivity and resistivity were measured for wide temperature and frequency ranges. The Gd+Nd doped PT material has been used to realize a SAW transducer.

Paper Details

Date Published: 23 February 2005
PDF: 10 pages
Proc. SPIE 5650, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems II, (23 February 2005); doi: 10.1117/12.582437
Show Author Affiliations
Elena E. Dimitriu, REGO COM SRL (Romania)
Univ. Ovidius Constanta (Romania)
Floriana Craciun, Istituto di Acustica (Italy)
Rodica Ramer, Univ. of New South Wales (Australia)
Gabriel Prodan, Univ. Ovidius Constanta (Romania)
Victor Ciupina, Univ. Ovidius Constanta (Romania)

Published in SPIE Proceedings Vol. 5650:
Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems II
Jung-Chih Chiao; David N. Jamieson; Lorenzo Faraone; Andrew S. Dzurak, Editor(s)

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