Dielectric Properties of Bi&lt;sub&gt;0.2&lt;/sub&gt;K&lt;sub&gt;0.8&lt;/sub&gt;(Zn&lt;sub&gt;0.1&lt;/sub&gt;Ti&lt;sub&gt;0.1&lt;/sub&gt;)Ta&lt;sub&gt;0.8&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Ceramics

P. Ketsuwan; A. Prasatkhetragarn; Supon Ananta; Chien Chih Huang; David P. Cann; Rattikorn Yimnirun

doi:10.4028/www.scientific.net/kem.421-422.255

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JOURNAL ARTICLE

Dielectric Properties of Bi0.2K0.8(Zn0.1Ti0.1)Ta0.8O3 Ceramics

P. Ketsuwan A. Prasatkhetragarn Supon Ananta Chien Chih Huang David P. Cann Rattikorn Yimnirun

Year: 2009 Journal: Key engineering materials Vol: 421-422 Pages: 255-258 Publisher: Trans Tech Publications

DOI: 10.4028/www.scientific.net/kem.421-422.255

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Abstract

The Bi0.2K0.8(Zn0.1Ti0.1)Ta0.8O3 and Li doped ceramics prepared via the solid-state reaction technique were investigated. The XRD patterns show the single phase cubic perovskite structure without any evidence of secondary phases when sintered at 1250 oC for undoped Bi0.2K0.8(Zn0.1Ti0.1)Ta0.8O3 and sintered at 1100 oC for Li doped one. The dielectric properties indicate the diffused phase transition (DPT). The dielectric loss of undoped ceramic increases with increasing frequency in temperature range 270 oC down to -150 oC, which suggests low temperature relaxation, while the dielectric loss of Li doped ceramic reveals the interesting lower value over a wide temperature range of about 0 - 300 oC.

Keywords:

Materials science Dielectric Ceramic Perovskite (structure) Analytical Chemistry (journal) Dielectric loss Doping Atmospheric temperature range Phase (matter) Mineralogy Crystallography Metallurgy Thermodynamics Optoelectronics Chemistry

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Ferroelectric and Piezoelectric Materials

Physical Sciences → Materials Science → Materials Chemistry

Microwave Dielectric Ceramics Synthesis

Physical Sciences → Engineering → Electrical and Electronic Engineering

Multiferroics and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Dielectric Properties of Bi<sub>0.2</sub>K<sub>0.8</sub>(Zn<sub>0.1</sub>Ti<sub>0.1</sub>)Ta<sub>0.8</sub>O<sub>3</sub> Ceramics

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