Microstructural Characterization of Fine-Grained Pb(Zr0.52Ti0.48)O3 Ceramics Fabricated by a Spark Plasma Sintering

Abstract:

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The dense Pb(Zr0.52Ti0.48)O3 (PZT) piezoelectric ceramics have been prepared at a low temperature by a spark plasma sintering (SPS) method without excess PbO addition and their structural features including domains were systematically investigated. The fine microstructure consisting of submicrometer-sized grains as well as relative density reaching 99% was achieved by sintering at 950°C which is 400°C lower than that of pressureless sintering (PLS). Transmission electron microscopy (TEM) results confirmed that the sintered specimen contained very dense domain structures inside each grain, showing the nanoscaled single-domains even at the small grains (below 100 nm). The SPS-processed PZT exhibited better piezoelectric properties than those of the PLS-processed one, which is attributed to its fine-microstructural feature.

Info:

Periodical:

Key Engineering Materials (Volumes 317-318)

Edited by:

T. Ohji, T. Sekino and K. Niihara

Pages:

155-158

DOI:

10.4028/www.scientific.net/KEM.317-318.155

Citation:

S. M. Koo et al., "Microstructural Characterization of Fine-Grained Pb(Zr0.52Ti0.48)O3 Ceramics Fabricated by a Spark Plasma Sintering", Key Engineering Materials, Vols. 317-318, pp. 155-158, 2006

Online since:

August 2006

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Price:

$35.00

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