Preparation and characterisation of finegrained Barium lead titanate ceramics by spark plasma sintering technique

V. R. Mudinepalli; F. Leng; W. C. Lin; B. S. Murty

doi:10.1179/1433075X15Y.0000000014

Preparation and characterisation of finegrained Barium lead titanate ceramics by spark plasma sintering technique

V. R. Mudinepalli^*, F. Leng, W. C. Lin, B. S. Murty

^*Corresponding author for this work

Department of Physics

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

2 Citations (Scopus)

Abstract

Barium lead titanate ferroelectric ceramic is a promising material for electronic devices at high frequency and high temperatures. These fine-grained ceramics were obtained at a low sintering temperature of 900°C within a short sintering time by means of a new sintering method - spark plasma sintering (SPS). The ceramics are highly densified to >99% of the theoretical X-ray density with homogeneous microstructures, signifying that the SPS process is effective for the densifying of compacts and the inhibition of exaggerated grain growth. Temperature dependence of dielectric constant of SPS pellets shows three times higher than the conventional sintering (CS) Ba_0.8Pb_0.2TiO₃ (BPT) pellet. The variations in properties between SPS and CS materials are mainly because of the differences of the resultant microstructures, especially grain size, of the ceramics.

Original language	English
Pages (from-to)	81-85
Number of pages	5
Journal	Materials Research Innovations
Volume	20
Issue number	2
DOIs	https://doi.org/10.1179/1433075X15Y.0000000014
Publication status	Published - 2016

Keywords

Barium titanate
Dielectric properties
Spark plasma sintering
X-ray diffraction

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1179/1433075X15Y.0000000014

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title = "Preparation and characterisation of finegrained Barium lead titanate ceramics by spark plasma sintering technique",

abstract = "Barium lead titanate ferroelectric ceramic is a promising material for electronic devices at high frequency and high temperatures. These fine-grained ceramics were obtained at a low sintering temperature of 900°C within a short sintering time by means of a new sintering method - spark plasma sintering (SPS). The ceramics are highly densified to >99% of the theoretical X-ray density with homogeneous microstructures, signifying that the SPS process is effective for the densifying of compacts and the inhibition of exaggerated grain growth. Temperature dependence of dielectric constant of SPS pellets shows three times higher than the conventional sintering (CS) Ba0.8Pb0.2TiO3 (BPT) pellet. The variations in properties between SPS and CS materials are mainly because of the differences of the resultant microstructures, especially grain size, of the ceramics.",

keywords = "Barium titanate, Dielectric properties, Spark plasma sintering, X-ray diffraction",

author = "Mudinepalli, {V. R.} and F. Leng and Lin, {W. C.} and Murty, {B. S.}",

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year = "2016",

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T1 - Preparation and characterisation of finegrained Barium lead titanate ceramics by spark plasma sintering technique

AU - Mudinepalli, V. R.

AU - Leng, F.

AU - Lin, W. C.

AU - Murty, B. S.

PY - 2016

Y1 - 2016

N2 - Barium lead titanate ferroelectric ceramic is a promising material for electronic devices at high frequency and high temperatures. These fine-grained ceramics were obtained at a low sintering temperature of 900°C within a short sintering time by means of a new sintering method - spark plasma sintering (SPS). The ceramics are highly densified to >99% of the theoretical X-ray density with homogeneous microstructures, signifying that the SPS process is effective for the densifying of compacts and the inhibition of exaggerated grain growth. Temperature dependence of dielectric constant of SPS pellets shows three times higher than the conventional sintering (CS) Ba0.8Pb0.2TiO3 (BPT) pellet. The variations in properties between SPS and CS materials are mainly because of the differences of the resultant microstructures, especially grain size, of the ceramics.

AB - Barium lead titanate ferroelectric ceramic is a promising material for electronic devices at high frequency and high temperatures. These fine-grained ceramics were obtained at a low sintering temperature of 900°C within a short sintering time by means of a new sintering method - spark plasma sintering (SPS). The ceramics are highly densified to >99% of the theoretical X-ray density with homogeneous microstructures, signifying that the SPS process is effective for the densifying of compacts and the inhibition of exaggerated grain growth. Temperature dependence of dielectric constant of SPS pellets shows three times higher than the conventional sintering (CS) Ba0.8Pb0.2TiO3 (BPT) pellet. The variations in properties between SPS and CS materials are mainly because of the differences of the resultant microstructures, especially grain size, of the ceramics.

KW - Barium titanate

KW - Dielectric properties

KW - Spark plasma sintering

KW - X-ray diffraction

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Preparation and characterisation of finegrained Barium lead titanate ceramics by spark plasma sintering technique

Abstract

Keywords

ASJC Scopus subject areas

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