NDLI: Electrical properties of ferroelectric Sr0.5Ba0.5Nb2O6 ceramic materials synthesized by different techniques

Content Provider	IEEE Xplore Digital Library
Author	Kulkarni, A. R. Patro, P. K. Gupta, S. M. Harendranath, C. S.
Copyright Year	2008
Description	Author affiliation: Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Bombay, Mumbai-400 076, India (Kulkarni, A. R.; Patro, P. K.) \|\| Raja Ramanna Centre for Advanced Technology, Indore, India (Gupta, S. M.) \|\| Sophisticated Analytical Instrument Facility, Indian Institute of Technology, Bombay, Mumbai-400 076, India (Harendranath, C. S.)
Abstract	Strontium Barium Niobate (SrxBa1¿xNb2O6, abbreviated as SBN) is a promising lead free ferroelectric-ceramic material. It belongs to the family of tetragonal tungsten bronze structured ferroelectrics. Unlike other family of ferroelectric perovskites such as, PMN and BT where, only one composition gives the ferroelectric phase, SBN exhibits ferroelectricity in the composition range 0.25¿x¿0.75. This in turn, results in a material with different Curie temperatures, microstructures, dielectric and ferroelectric properties. However, the unusual sintering behavior of SBN, leading to abnormal grain growth, duplex microstructure and low density, has plagued commercial exploitation of SBN. We have employed several synthesis methods for example solid-state (conventional as well as microwave sintered), partial coprecipitation and coprecipitation to synthesize SBN of one specific composition (Sr0.5Ba0.5Nb2O6). The different methods resulted in materials having varying microstructure and dielectric properties. For practical application of a ferroelectric material, the ferroelectric properties stand above all other properties due to its wide possible applications in memory and actuators. The main thrust of this paper is on how the ferroelectric properties e.g. Hysteresis, I¿V characteristics, Leakage test and Electrical fatigue behavior vary with different synthesis approaches and the consequent microstructure.
Starting Page	1
Ending Page	4
File Size	5273051
Page Count	4
File Format	PDF
ISBN	9781424427444
ISSN	10994734
DOI	10.1109/ISAF.2008.4693890
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-02-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ferroelectric materials Ceramics Microstructure Dielectric materials Strontium Barium Niobium compounds Environmentally friendly manufacturing techniques Tungsten Temperature
Content Type	Text
Resource Type	Article

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