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[期刊论文]

Structure and dielectric properties of calcium oxide-alumina-silica/strontium barium niobate glass-ceramics

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author:

Zheng, X. (Zheng, X..) [1] | Ding, J. (Ding, J..) [2] | Ni, W. (Ni, W..) [3] | Unfold

Indexed by:

Scopus PKU CSCD

Abstract:

The crystal structure and dielectric properties of CaO-Al2O3-SiO2 (CAS)/Sr0.6Ba0.4Nb2O6 (SBN40) glass-ceramics prepared by the sintering method were investigated. With the increase of SBN40 content, the density of CAS/SBN40 glass-ceramics gradually increases, while the temperature required to obtain the highest density slightly declines at first, and then sharply rises when the SBN40 content is above 70% (in mass, the same below). The major phase gradually transforms from SiO2, CaNb2O6 to tungsten bronze phase SBN with the increase of SBN40 content. Single phase SBN can be formed when the SBN40 content reaches 90%. At the same time, the dielectric constant increases gradually at first for 100 kHz, and then rapidly increases when the SBN40 content increases, which is relative to the variation of the phase constitution. 10% CAS/90% SBN40 glass-ceramics with a dielectric constant of 963 is a new relaxor ferroelectric material that exhibits an obvious diffuse dielectric peak at around 80°C.

Keyword:

Calcium; Dielectric properties; Glass-ceramics; Tungsten bronze

Community:

  • [ 1 ] [Zheng, X.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 2 ] [Ding, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 3 ] [Ni, W.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 4 ] [Yu, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China

Reprint 's Address:

  • [Zheng, X.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China

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Source :

Journal of the Chinese Ceramic Society

ISSN: 0454-5648

Year: 2006

Issue: 11

Volume: 34

Page: 1301-1305

Cited Count:

WoS CC Cited Count:

30 Days PV: 1

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