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http://dx.doi.org/10.4191/KCERS.2004.41.12.884

Effect of NiO on Microstructure and Properties of PMN-PT-BT Ceramics Prepared by Mixed Oxide Method  

Han, Kyoung-Ran (Division of Materials Science and Engineering, KIST)
Jung, Jung-Woong (Division of Materials Science and Engineering, KIST)
Kim, Chang-Sam (Division of Materials Science and Engineering, KIST)
Publication Information
Journal of the Korean Ceramic Society / v.41, no.12, 2004 , pp. 884-888 More about this Journal
Abstract
Effects of NiO were studied in aspects of dielectric properties and microstructure of $0.96(0.91Pb(Mg_{1/3}Nb_{2/3})O_3-0.09PbTiO_3)­0.04BaTiO_3$ (PMN-PT-BT, PBT). The PBT was prepared by a conventional mixed oxide method using $(MgCO_3)_4{\cdot}Mg(OH)_2$ instead of MgO through Lewis acid-base interaction. NiO was added in the range of 0.5 to $3.0\;wt\%$ as thermally decomposable $2NiCO_3{\cdot}3Ni(OH)_2$ and it seemed to enhance densification to a large extent below $1000^{\circ}C$. But all the systems gave rise to ceramics with almost same relative sintered density of 96% by sintering at $1000^{\circ}C$ for 2 h. But it turned out that the addition of NiO was detrimental to dielectric constant but beneficial to the loss of dielectric constant.
Keywords
PMN-PT-BT; Dielectric properties; Low temperature sintering;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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