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Improved Electrical Properties of Low-Temperature Sintered Cu Doped Ba^sub 0.99^Ca^sub 0.01^Zr^sub 0.02^Ti^sub 0.98^O3 Ceramics
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Improved Electrical Properties of Low-Temperature Sintered Cu Doped Ba^sub 0.99^Ca^sub 0.01^Zr^sub 0.02^Ti^sub 0.98^O3 Ceramics
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Improved Electrical Properties of Low-Temperature Sintered Cu Doped Ba^sub 0.99^Ca^sub 0.01^Zr^sub 0.02^Ti^sub 0.98^O3 Ceramics
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Journal Article
Improved Electrical Properties of Low-Temperature Sintered Cu Doped Ba^sub 0.99^Ca^sub 0.01^Zr^sub 0.02^Ti^sub 0.98^O3 Ceramics
2016
Overview
(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) In this study, a series of Ba0.99Ca0.01Zr0.02Ti0.98O3-x mol.% Cu (BCZT-xCu) ceramics were fabricated with a conventional solid state reaction method. The effects of sintering temperature and doping level of Cu ions on the microstructure development and electrical properties were studied systematically. The optimal sintering temperature could be lowered by 200°C compared to pure BCZT ceramics, due to the addition of Cu. Optimized properties were obtained for BCZT-2.0 mol.% Cu ceramics sintered at 1250°C, showing improved ferroelectric properties with a high remnant polarization (P r = 8.25 [mu]C/cm2) and a low coercive field (E c = 0.395 kV/mm). Of particular significance is that the dielectric properties were found to show high thermal stability. The dielectric constant ... is within the scope of 1900-2350, while the dielectric loss (tanδ) is in the range of 1.15-2.2% within a temperature range of 30-105°C. In general, the BCZT-2.0Cu ceramics mainly display the characteristic of normal ferroelectrics.
Publisher
Springer Nature B.V
