Structural and Dielectric Properties of Na0.5Bi0.5TiO3 Ferroelectric Ceramics

被引：1
|
作者：
Kumari, Rekha [1 ]
Ahlawat, N. [1 ]
Agarwal, A. [1 ]
Sindhu, M. [1 ]
Ahlawat, N. N. [2 ]
机构：
[1] Guru Jambheshwar Univ Sci & Technol, Dept Appl Phys, Hisar 125001, Haryana, India
[2] Chaudhary Devi Lal Univ, Dept Phys, Sirsa 125001, Haryana, India
来源：
ADVANCES IN MATERIALS AND PROCESSING: CHALLENGES AND OPPORTUNITIES | 2012年 / 585卷
关键词：
Na0.5Bi0.5TiO3; Rietveld refinement; Rhombohedral space group; Dielectric properties; ELECTRICAL-PROPERTIES; PHASE-TRANSITION;
D O I：
10.4028/www.scientific.net/AMR.585.219
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Na0.5Bi0.5TiO3 (NBT) ceramics were synthesized by conventional solid state reaction method. Structural and dielectric properties of these ceramics were investigated. Crystalline phase of sintered ceramics was investigated by X-ray diffraction (XRD). The Rietveld refinement of powder X-ray diffraction revealed that the prepared ceramics exhibit the rhombohedral space group R3c. Dielectric properties of Na0.5Bi0.5TiO3 (NBT) ceramics were studied at different temperatures in a wide frequency range using impedance analyzer. Dielectric constant and tan delta were found to decrease with increase in frequency. The prepared NBT ceramics exhibit a broad maximum in dielectric permittivity at 583 K and dispersive permittivity at high temperatures.
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页码：219 / +
页数：2
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