(Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-(Bi1/2Li1/2)TiO3-BaTiO3lead-free ceramic fibres fabricated by a powder-based extrusion method

S. H. Choy; H. K. Li; Kwok Ho Lam; H. L.W. Chan; C. L. Choy

doi:10.1080/00150190701536473

(Bi_1/2Na_1/2)TiO₃-(Bi_1/2K_1/2)TiO₃-(Bi_1/2Li_1/2)TiO₃-BaTiO₃lead-free ceramic fibres fabricated by a powder-based extrusion method

S. H. Choy, H. K. Li, Kwok Ho Lam, H. L.W. Chan, C. L. Choy

The Hong Kong Polytechnic University

Research output: Journal article publication › Conference article › Academic research › peer-review

1 Citation (Scopus)

Abstract

Lead-free bismuth sodium potassium lithium titanatebarium titanate [0.885 (Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.015(Bi1/2Li1/2) TiO3-0.05BaTiO3, BNKLBT-1.5] fibres have been fabricated by a powder-based extrusion method. The ceramic fibres with 400 μm diameter were well-crystallized after being calcined at 800°C and sintered at 1170°C. After being poled, the electromechanical coupling coefficient k33of the fibre is 0.55 while other properties are comparable to those a ceramic disc. The BNKLNT ceramic fibres prepared by the powder-based extrusion method have good piezoelectric and ferroelectric properties and have potential to replace lead zirconate titanate (PZT) fibres in various device applications.

Original language	English
Pages (from-to)	85-92
Number of pages	8
Journal	Ferroelectrics
Volume	358
Issue number	1 PART 4
DOIs	https://doi.org/10.1080/00150190701536473
Publication status	Published - 1 Dec 2007
Event	5th Asian Meeting on Ferroelectricity, AMF-5 - Noda, Japan Duration: 3 Sept 2006 → 7 Sept 2006

Keywords

Ceramic fibres
Lead-free ceramics
Piezoelectric properties

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

More information

10.1080/00150190701536473

Cite this

@article{26a4e325291d41f0bf29f39cbda6fc03,

title = "(Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-(Bi1/2Li1/2)TiO3-BaTiO3lead-free ceramic fibres fabricated by a powder-based extrusion method",

abstract = "Lead-free bismuth sodium potassium lithium titanatebarium titanate [0.885 (Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.015(Bi1/2Li1/2) TiO3-0.05BaTiO3, BNKLBT-1.5] fibres have been fabricated by a powder-based extrusion method. The ceramic fibres with 400 μm diameter were well-crystallized after being calcined at 800°C and sintered at 1170°C. After being poled, the electromechanical coupling coefficient k33of the fibre is 0.55 while other properties are comparable to those a ceramic disc. The BNKLNT ceramic fibres prepared by the powder-based extrusion method have good piezoelectric and ferroelectric properties and have potential to replace lead zirconate titanate (PZT) fibres in various device applications.",

keywords = "Ceramic fibres, Lead-free ceramics, Piezoelectric properties",

author = "Choy, {S. H.} and Li, {H. K.} and Lam, {Kwok Ho} and Chan, {H. L.W.} and Choy, {C. L.}",

year = "2007",

month = dec,

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doi = "10.1080/00150190701536473",

language = "English",

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note = "5th Asian Meeting on Ferroelectricity, AMF-5 ; Conference date: 03-09-2006 Through 07-09-2006",

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T1 - (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-(Bi1/2Li1/2)TiO3-BaTiO3lead-free ceramic fibres fabricated by a powder-based extrusion method

AU - Choy, S. H.

AU - Li, H. K.

AU - Lam, Kwok Ho

AU - Chan, H. L.W.

AU - Choy, C. L.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Lead-free bismuth sodium potassium lithium titanatebarium titanate [0.885 (Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.015(Bi1/2Li1/2) TiO3-0.05BaTiO3, BNKLBT-1.5] fibres have been fabricated by a powder-based extrusion method. The ceramic fibres with 400 μm diameter were well-crystallized after being calcined at 800°C and sintered at 1170°C. After being poled, the electromechanical coupling coefficient k33of the fibre is 0.55 while other properties are comparable to those a ceramic disc. The BNKLNT ceramic fibres prepared by the powder-based extrusion method have good piezoelectric and ferroelectric properties and have potential to replace lead zirconate titanate (PZT) fibres in various device applications.

AB - Lead-free bismuth sodium potassium lithium titanatebarium titanate [0.885 (Bi1/2Na1/2)TiO3-0.05(Bi1/2K1/2)TiO3-0.015(Bi1/2Li1/2) TiO3-0.05BaTiO3, BNKLBT-1.5] fibres have been fabricated by a powder-based extrusion method. The ceramic fibres with 400 μm diameter were well-crystallized after being calcined at 800°C and sintered at 1170°C. After being poled, the electromechanical coupling coefficient k33of the fibre is 0.55 while other properties are comparable to those a ceramic disc. The BNKLNT ceramic fibres prepared by the powder-based extrusion method have good piezoelectric and ferroelectric properties and have potential to replace lead zirconate titanate (PZT) fibres in various device applications.

KW - Ceramic fibres

KW - Lead-free ceramics

KW - Piezoelectric properties

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M3 - Conference article

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