PolyU IR
 

PolyU Institutional Repository >
Applied Physics >
AP Journal/Magazine Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/387

Title: Dielectric, ferroelectric properties, and grain growth of Ca[sub x]Ba[sub 1-x]Nb₂O[sub 6] ceramics with tungsten-bronzes structure
Authors: Ke, Shanming
Fan, Huiqing
Huang, Haitao
Chan, Helen L. W.
Yu, Shuhui
Subjects: Barium compounds
Calcium compounds
Dielectric hysteresis
Ferroelectric ceramics
Ferroelectric Curie temperature
Ferroelectric transitions
Grain growth
Issue Date: 17-Jul-2008
Publisher: American Institute of Physics
Citation: Journal of applied physics, 17 July 2008, v. 104, 024101, p. 1-6
Abstract: Dielectric properties, microstructures, and phase transition behaviors of α and β phases of CaxBa[sub 1-x]Nb₂O[sub 6] (x=0.22, 0.30, and 0.38) ceramics were investigated. All the three compositions had partially filled tungsten-bronze structure (TTB) and relatively high Curie temperatures (up to 345°C) compared with Sr[sub 1−x]Ba[sub x]Nb₂O[sub 6]. The α phase exhibits unambiguously a diffused phase transition, while the β phase is associated with an incommensurate phase and needs to be further studied. The dielectric and ferroelectric properties of Ca[sub x]Ba[sub 1−x]Nb₂O[sub 6] ceramics were strongly processing-dependent. A mechanism was proposed to explain the grain growth behavior of TTB ceramic niobates.
Rights: © 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. Ke et al. J. Appl. Phys. 104, 024101 (2008) and may be found at http://link.aip.org/link/?jap/104/024101
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/387
ISSN: 00218979
Appears in Collections:MRC Journal/Magazine Articles
AP Journal/Magazine Articles

Files in This Item:

File Description SizeFormat
tungsten-bronzes_08.pdf1 MBAdobe PDFView/Open



Facebook Facebook del.icio.us del.icio.us LinkedIn LinkedIn


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.

 

© Pao Yue-kong Library, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Powered by DSpace (Version 1.5.2)  © MIT and HP
Feedback | Privacy Policy Statement | Copyright & Restrictions - Feedback