Characteristics of (1-y)[(Na0.5Bi0.5)1-xBax]O3-yBa(Cu1/2W1/2)O3 Ceramics Prepared by Hydrothermal Synthesis Route

Dong Xiang Zhou; Hui Li; Yi Hua Deng

doi:10.4028/www.scientific.net/AST.45.2472

Paper Titles

New Advances in Forming Functional Ceramics for Micro Devices
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Influence of Fibre Diameter on the Microstructure and the Piezoelectric Properties of PZT-Fibres
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Time-Dependent Nonlinear Ferroelastic Behaviour of Soft Lead Zirconate Titanate Piezoceramics
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Characteristics of (1-y)[(Na_0.5Bi_0.5)_1-xBa_x]O_3-yBa(Cu_1/2W_1/2)O₃ Ceramics Prepared by Hydrothermal Synthesis Route
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Sol-Gel Bonded Piezoelectric Lead Zirconate Titanate Ceramics
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Characterization of the Aurivillius Type PbBi₄Ti₄O₁₅ Piezoelectric Ceramic Doped with Eu³⁺
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Sol-Gel Transparent PLZT Ferroelectric Ceramics
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Recent Advances in Pyroelectric Ceramics and Thin Films for Applications in Uncooled Infra-Red Sensor Arrays
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Characteristics of...

Characteristics of (1-y)[(Na_0.5Bi_0.5)_1-xBa_x]O_3-yBa(Cu_1/2W_1/2)O₃ Ceramics Prepared by Hydrothermal Synthesis Route

Abstract:

(Na0.5Bi0.5)TiO3 (Abbreviated to BNT) was synthesized by hydrothermal process and the average gain size was 15 nm with narrow size distribution. Pure perovskite structure of BNT particles was identified by XRD analysis. The nanoscale BNT powder was selected as raw material to fabricate BNT based ceramics with BaTiO3 (Abbreviated to BT) and Ba(Cu0.5W0.5)O3 (Abbreviated to BCW) doping. SEM images show that the ceramic using nanoscale BNT powder as raw material has a high dense body with the average gain size from 0.5 μm to 1 μm. The experimental results show that with increasing amount of BCW, d33 and Kp of (0.94-x)BNT-0.06BT-xBCW increase initially, then reach the maximum values of 130 pC/N and 0.32 when 5mol% of BCW was added. Further increasing amount of BCW leads to decreasing d33 and Kp. The optimal piezoelectric and dielectric properties were obtained as d33 = 130 pC/N, Kp = 0.32, εr = 800, tgδ = 0.06.