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首页> 外文期刊>Journal of Materials Research >Pb(ZrxTi1-x)O-3 ceramics via reactive sintering of partially reacted mixture produced by a high-energy ball milling process
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Pb(ZrxTi1-x)O-3 ceramics via reactive sintering of partially reacted mixture produced by a high-energy ball milling process

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摘要

Partially reacted mixtures of Pb(ZrxTi1-x)O-3 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 degreesC. The dielectric and ferroelectric properties of the PZT ceramics as a function of sintering temperature and milling time were also studied and discussed. References: 26

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