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Title: Effects of mechanical activation on the sintering and dielectric properties of oxide-derived PZT
Authors: Lee, S.E.
Xue, J.M. 
Wan, D.M. 
Wang, J. 
Issue Date: 9-Jul-1999
Citation: Lee, S.E., Xue, J.M., Wan, D.M., Wang, J. (1999-07-09). Effects of mechanical activation on the sintering and dielectric properties of oxide-derived PZT. Acta Materialia 47 (9) : 2633-2639. ScholarBank@NUS Repository.
Abstract: A single phase, nanocrystalline perovskite PZT powder has been successfully derived from a mixture of oxides via a mechanical activation route. Unlike in the conventional solid state reaction, the perovskite PZT phase was first triggered and then progressively formed without passing through the intermediate PT and PZ phases with increasing degree of mechanical activation. Similarly, the formation of a single phase PZT of perovskite structure can be completed in a partially activated mixture of oxide powders when heated at an elevated temperature, also without involving PT and PZ as transitional phases. Dense PZT (> 95% theoretical density) with excellent dielectric properties was obtained when the mechanically activated powders are sintered at 1150°C. The relative density and dielectric properties of sintered PZT were improved when the formation of perovskite phase is completed by the mechanical activation.
Source Title: Acta Materialia
ISSN: 13596454
DOI: 10.1016/S1359-6454(99)00141-X
Appears in Collections:Staff Publications

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