Microstructure and electrical properties of SrBi2Ta 2O9 ceramics processed by templated grain growth

H. Amorín; M. E.V. Costa; A. L. Kholkin

Microstructure and electrical properties of SrBi₂Ta ₂O₉ ceramics processed by templated grain growth

H. Amorín^*
, M. E.V. Costa
, A. L. Kholkin

^*Corresponding author for this work

University of Aveiro

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

Single-phase SrBi₂Ta₂O₉ (SBT) ceramics were fabricated by Templated Grain Growth, using plate-like anisotropic SBT single crystals with a dominant (001)-orientation of a major face. Template particles, of the size of ∼ 50 x 50 x 5 μm³ were previously obtained by self-flux solution method, and then embedded in a fine-grained matrix with a 3 wt% of Bi₂O₃ excess using a uniaxial pressing technique. The system was then treated at temperatures between 1150 and 1250°C during 2 and 24 h. Microstructural and XRD characterization was performed to evaluate the grain morphology and degree of texture of the sintered ceramics and its dependence on the sintering conditions. The studied dielectric properties revealed the influence of the texture degree on the electric properties of the obtained SBT ceramics.

Original language	English
Pages (from-to)	35-39
Number of pages	5
Journal	Materials Science Forum
Volume	455-456
Publication status	Published - 2004
Externally published	Yes
Event	Advanced Materials Forum II: Proceedings of the II International Materials Symposium: Materials 2003 and XI Encontro da Sociedade Portugesa de Materials, 2003 ATERIAIS - Caparica, Portugal Duration: 14 Apr 2003 → 16 Apr 2003

Keywords

Bi-layered ferroelectrics
SrBiTaO ceramics
Templated grain growth

Cite this

@article{0b5311c2d4f6459ca63492c5f4406a1f,

title = "Microstructure and electrical properties of SrBi2Ta 2O9 ceramics processed by templated grain growth",

abstract = "Single-phase SrBi2Ta2O9 (SBT) ceramics were fabricated by Templated Grain Growth, using plate-like anisotropic SBT single crystals with a dominant (001)-orientation of a major face. Template particles, of the size of ∼ 50 x 50 x 5 μm3 were previously obtained by self-flux solution method, and then embedded in a fine-grained matrix with a 3 wt\% of Bi2O3 excess using a uniaxial pressing technique. The system was then treated at temperatures between 1150 and 1250°C during 2 and 24 h. Microstructural and XRD characterization was performed to evaluate the grain morphology and degree of texture of the sintered ceramics and its dependence on the sintering conditions. The studied dielectric properties revealed the influence of the texture degree on the electric properties of the obtained SBT ceramics.",

keywords = "Bi-layered ferroelectrics, SrBiTaO ceramics, Templated grain growth",

author = "H. Amor{\'i}n and Costa, \{M. E.V.\} and Kholkin, \{A. L.\}",

year = "2004",

language = "English",

volume = "455-456",

pages = "35--39",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

note = "Advanced Materials Forum II: Proceedings of the II International Materials Symposium: Materials 2003 and XI Encontro da Sociedade Portugesa de Materials, 2003 ATERIAIS ; Conference date: 14-04-2003 Through 16-04-2003",

}

TY - JOUR

T1 - Microstructure and electrical properties of SrBi2Ta 2O9 ceramics processed by templated grain growth

AU - Amorín, H.

AU - Costa, M. E.V.

AU - Kholkin, A. L.

PY - 2004

Y1 - 2004

N2 - Single-phase SrBi2Ta2O9 (SBT) ceramics were fabricated by Templated Grain Growth, using plate-like anisotropic SBT single crystals with a dominant (001)-orientation of a major face. Template particles, of the size of ∼ 50 x 50 x 5 μm3 were previously obtained by self-flux solution method, and then embedded in a fine-grained matrix with a 3 wt% of Bi2O3 excess using a uniaxial pressing technique. The system was then treated at temperatures between 1150 and 1250°C during 2 and 24 h. Microstructural and XRD characterization was performed to evaluate the grain morphology and degree of texture of the sintered ceramics and its dependence on the sintering conditions. The studied dielectric properties revealed the influence of the texture degree on the electric properties of the obtained SBT ceramics.

AB - Single-phase SrBi2Ta2O9 (SBT) ceramics were fabricated by Templated Grain Growth, using plate-like anisotropic SBT single crystals with a dominant (001)-orientation of a major face. Template particles, of the size of ∼ 50 x 50 x 5 μm3 were previously obtained by self-flux solution method, and then embedded in a fine-grained matrix with a 3 wt% of Bi2O3 excess using a uniaxial pressing technique. The system was then treated at temperatures between 1150 and 1250°C during 2 and 24 h. Microstructural and XRD characterization was performed to evaluate the grain morphology and degree of texture of the sintered ceramics and its dependence on the sintering conditions. The studied dielectric properties revealed the influence of the texture degree on the electric properties of the obtained SBT ceramics.

KW - Bi-layered ferroelectrics

KW - SrBiTaO ceramics

KW - Templated grain growth

UR - https://www.scopus.com/pages/publications/17144439686

M3 - Conference article

AN - SCOPUS:17144439686

SN - 0255-5476

VL - 455-456

SP - 35

EP - 39

JO - Materials Science Forum

JF - Materials Science Forum

T2 - Advanced Materials Forum II: Proceedings of the II International Materials Symposium: Materials 2003 and XI Encontro da Sociedade Portugesa de Materials, 2003 ATERIAIS

Y2 - 14 April 2003 through 16 April 2003

ER -

Microstructure and electrical properties of SrBi₂Ta ₂O₉ ceramics processed by templated grain growth

Abstract

Keywords

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