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Pb(ZrxTi1−x)O3 ceramics via reactive sintering of partially reacted mixture produced by a high-energy ball milling process

Published online by Cambridge University Press:  31 January 2011

L. B. Kong
Affiliation:
School of Materials Engineering, Nanyang Technological University, Singapore 639798
J. Ma
Affiliation:
School of Materials Engineering, Nanyang Technological University, Singapore 639798
T. S. Zhang
Affiliation:
School of Materials Engineering, Nanyang Technological University, Singapore 639798
W. Zhu
Affiliation:
Microelectronics Center, School of Electric and Electronic Engineering, Nanyang Technological University, Singapore 639798
O. K. Tan
Affiliation:
Microelectronics Center, School of Electric and Electronic Engineering, Nanyang Technological University, Singapore 639798
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Abstract

Partially reacted mixtures of Pb(ZrxTi1−x)O3 and its corresponding starting oxide components were obtained by a high-energy ball milling process. The partially reacted powders were characterized by x-ray diffraction and scanning electron microscopy techniques. The sintering behavior of the milled mixtures has demonstrated a distinct volumetric expansion before the densification of the samples, which clearly shows the occurrence of a reactive sintering process of the partially reacted powders. Such process requires a lower densification temperature as compared with the PZT powders produced by the conventional solid-state reaction process. PZT ceramics were found to form directly from the partially reacted powders sintered at 900–1200 °C. The dielectric and ferroelectric properties of the PZT ceramics as a function of sintering temperature and milling time were also studied and discussed.

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Articles
Copyright
Copyright © Materials Research Society 2001

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