Dielectric properties of spark-plasma-sintered BaTiO3

T  Takeuchi; E  Betourne; M  Tabuchi; H  Kageyama; Y  Kobayashi; A  Coats; Finlay D. Morrison; D C  Sinclair; A R  West

Dielectric properties of spark-plasma-sintered BaTiO3

T Takeuchi, E Betourne, M Tabuchi, H Kageyama, Y Kobayashi, A Coats, Finlay D. Morrison, D C Sinclair, A R West

Research output: Contribution to journal › Article › peer-review

Abstract

Spark-plasma-sintering (SPS) has been applied to BaYiO(3) to prepare dense ceramics consisting of submicrometre-sized powder. Relatively dense (typically 97% of the theoretical X-ray density) pellets with an average grain size remaining similar to that of the starting powder, approximately 0.6 mu m, were obtained by the SPS process. Fixed frequency (1 kHz) measurements show the room temperature permittivity of SPS ceramics to be relatively high, approximately 3500, and at least double the value of conventionally sintered ceramics, approximately 1500. Alternating current (a.c.) impedance spectroscopy measurements show that SPS is an effective process to reduce the influence of intergranular (grain boundary) effects on the permittivity and direct current (d.c.) resistance characteristics of BaTiO3 ceramics substantially. (C) 1999 Kluwer Academic Publishers.

Original language	English
Pages (from-to)	917-924
Number of pages	8
Journal	Journal of Materials Science
Volume	34
Issue number	5
Publication status	Published - 1 Mar 1999

Keywords

BARIUM-TITANATE
HYDROTHERMAL SYNTHESIS
MECHANICAL-PROPERTIES
THIN-FILMS
DENSIFICATION
SPECTROSCOPY
CERAMICS

Cite this

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title = "Dielectric properties of spark-plasma-sintered BaTiO3",

abstract = "Spark-plasma-sintering (SPS) has been applied to BaYiO(3) to prepare dense ceramics consisting of submicrometre-sized powder. Relatively dense (typically 97% of the theoretical X-ray density) pellets with an average grain size remaining similar to that of the starting powder, approximately 0.6 mu m, were obtained by the SPS process. Fixed frequency (1 kHz) measurements show the room temperature permittivity of SPS ceramics to be relatively high, approximately 3500, and at least double the value of conventionally sintered ceramics, approximately 1500. Alternating current (a.c.) impedance spectroscopy measurements show that SPS is an effective process to reduce the influence of intergranular (grain boundary) effects on the permittivity and direct current (d.c.) resistance characteristics of BaTiO3 ceramics substantially. (C) 1999 Kluwer Academic Publishers.",

keywords = "BARIUM-TITANATE, HYDROTHERMAL SYNTHESIS, MECHANICAL-PROPERTIES, THIN-FILMS, DENSIFICATION, SPECTROSCOPY, CERAMICS",

author = "T Takeuchi and E Betourne and M Tabuchi and H Kageyama and Y Kobayashi and A Coats and Morrison, {Finlay D.} and Sinclair, {D C} and West, {A R}",

year = "1999",

month = mar,

day = "1",

language = "English",

volume = "34",

pages = "917--924",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer",

number = "5",

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TY - JOUR

T1 - Dielectric properties of spark-plasma-sintered BaTiO3

AU - Takeuchi, T

AU - Betourne, E

AU - Tabuchi, M

AU - Kageyama, H

AU - Kobayashi, Y

AU - Coats, A

AU - Morrison, Finlay D.

AU - Sinclair, D C

AU - West, A R

PY - 1999/3/1

Y1 - 1999/3/1

N2 - Spark-plasma-sintering (SPS) has been applied to BaYiO(3) to prepare dense ceramics consisting of submicrometre-sized powder. Relatively dense (typically 97% of the theoretical X-ray density) pellets with an average grain size remaining similar to that of the starting powder, approximately 0.6 mu m, were obtained by the SPS process. Fixed frequency (1 kHz) measurements show the room temperature permittivity of SPS ceramics to be relatively high, approximately 3500, and at least double the value of conventionally sintered ceramics, approximately 1500. Alternating current (a.c.) impedance spectroscopy measurements show that SPS is an effective process to reduce the influence of intergranular (grain boundary) effects on the permittivity and direct current (d.c.) resistance characteristics of BaTiO3 ceramics substantially. (C) 1999 Kluwer Academic Publishers.

AB - Spark-plasma-sintering (SPS) has been applied to BaYiO(3) to prepare dense ceramics consisting of submicrometre-sized powder. Relatively dense (typically 97% of the theoretical X-ray density) pellets with an average grain size remaining similar to that of the starting powder, approximately 0.6 mu m, were obtained by the SPS process. Fixed frequency (1 kHz) measurements show the room temperature permittivity of SPS ceramics to be relatively high, approximately 3500, and at least double the value of conventionally sintered ceramics, approximately 1500. Alternating current (a.c.) impedance spectroscopy measurements show that SPS is an effective process to reduce the influence of intergranular (grain boundary) effects on the permittivity and direct current (d.c.) resistance characteristics of BaTiO3 ceramics substantially. (C) 1999 Kluwer Academic Publishers.

KW - BARIUM-TITANATE

KW - HYDROTHERMAL SYNTHESIS

KW - MECHANICAL-PROPERTIES

KW - THIN-FILMS

KW - DENSIFICATION

KW - SPECTROSCOPY

KW - CERAMICS

M3 - Article

SN - 0022-2461

VL - 34

SP - 917

EP - 924

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 5

ER -

Dielectric properties of spark-plasma-sintered BaTiO3

Abstract

Keywords

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