1. Structural and dielectric relaxor behavior of Ba1−xNdxBi4Ti4O15 ceramics
- Author
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Shanchuan Chen, Wei Long, Xiaojuan Li, Pinyang Fang, and Zengzhe Xi
- Subjects
010302 applied physics ,Diffraction ,Phase transition ,Materials science ,Thermodynamics ,Mineralogy ,chemistry.chemical_element ,02 engineering and technology ,General Chemistry ,Dielectric ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Neodymium ,Solid state reaction method ,Dielectric spectrum ,chemistry ,Phase (matter) ,visual_art ,0103 physical sciences ,Materials Chemistry ,visual_art.visual_art_medium ,Ceramic ,0210 nano-technology - Abstract
Ba 1− x Nd x Bi 4 Ti 4 O 14 (BNBT) ceramics were prepared by the convention solid state reaction method. Effect of neodymium substitution on the structural and dielectric properties of the BBT ceramic was investigated. Phase structure was characterized by using X-ray diffraction analysis (XRD). A broaden dielectric peak in frequency dependent dielectric spectrum is observed during the phase transition of the BNBT ceramics. The modified Curie-Weiss and Lorentz-type relationship were used to describe the phase transition behavior. The relaxor behavior could be described well by the Lorentz-type relationship. Effect of neodymium substitution on the Curie temperatures and degree of the diffuseness in the BNBT ceramics was discussed.
- Published
- 2016
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