NDLI: Complex rare-earth substituted lead titanate piezoceramics

Content Provider	IEEE Xplore Digital Library
Author	Dimitriu, E. Cracium, F. Ciupina, V. Prodan, G. Ramer, P.
Copyright Year	2005
Description	Author affiliation: Interdisciplinary Res. Inst. for Micro & Nanostruct., Ovidius Univ., Constanta, Romania (Dimitriu, E.)
Abstract	In this work we have investigated the properties of new compositions of Gd, Nd and a mixture of Gd+Nd -added Pb(Ti,Mn)O/sub 3/ ceramics, containing a few percent of Bi, to partially substitute the lead. The samples have been prepared starting from high purity oxides by solid-state reaction of oxide powders, within the sintering range 1100-1220/spl deg/C. Structural and morphological investigations were performed on poled samples. The use of X-ray diffraction together with microstructural examination by transmission electron microscopy has shown evidence for the formation of tetragonal perovskite phase. The domain structure and the lattice imperfection of the PT-type samples have been investigated by a high resolution transmission electron microscope (HRTEM). Samples with diameter 10 mm and thickness 1 mm have been employed for electrical characterization. Material coefficients have been investigated as a function of temperature. Dielectric constant and resistivity were measured with a four-wire probe also on unpoled samples in a wide temperature and frequency range.
Starting Page	297
Ending Page	300
File Size	2030559
Page Count	4
File Format	PDF
ISBN	0780384105
ISSN	10994734
DOI	10.1109/ISAF.2004.1418395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-08-23
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Titanium compounds Piezoelectric materials Transmission electron microscopy Neodymium Lead Ceramics Bismuth Solid state circuits Powders X-ray diffraction
Content Type	Text
Resource Type	Article

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