Characterisation of ferroelectric-calcium phosphate composites and ceramics

J P Gittings; C R Bowen; I G Turner; Fran Baxter; Julian Chaudhuri

doi:10.1016/j.jeurceramsoc.2007.02.120

Characterisation of ferroelectric-calcium phosphate composites and ceramics

J P Gittings, C R Bowen, I G Turner, Fran Baxter, Julian Chaudhuri

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

43 Citations (SciVal)

Abstract

This paper studies the effect of composite composition on the electrical properties of BaTiO3-hydroxyapatite (HA) composites and examines the high temperature electrical properties of pure HA. At least 80% volume of BaTiO3 was needed for the composites to exhibit any stress-induced piezoelectric potential. At elevated temperatures, pure HA exhibits an increase in real part of conductivity and permittivity. The increased ionic conductivity at elevated temperatures can be used to manufacture polarised HA bioceramics with permanent surface charges as polarised HA exhibited a depolarisation current at elevated temperatures. © 2007 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	4187-4190
Number of pages	4
Journal	Journal of the European Ceramic Society
Volume	27
Issue number	13-15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2007.02.120
Publication status	Published - 2007

Keywords

Piezoelectricity
Hydroxyapatite
Barium compounds
Bioceramics
Ferroelectricity
Electric conductivity
Permittivity
Calcium phosphate

Access to Document

10.1016/j.jeurceramsoc.2007.02.120

Cite this

@article{450cd7c69d3e4690a627689cb9c2486c,

title = "Characterisation of ferroelectric-calcium phosphate composites and ceramics",

abstract = "This paper studies the effect of composite composition on the electrical properties of BaTiO3-hydroxyapatite (HA) composites and examines the high temperature electrical properties of pure HA. At least 80% volume of BaTiO3 was needed for the composites to exhibit any stress-induced piezoelectric potential. At elevated temperatures, pure HA exhibits an increase in real part of conductivity and permittivity. The increased ionic conductivity at elevated temperatures can be used to manufacture polarised HA bioceramics with permanent surface charges as polarised HA exhibited a depolarisation current at elevated temperatures. {\textcopyright} 2007 Elsevier Ltd. All rights reserved.",

keywords = "Piezoelectricity, Hydroxyapatite, Barium compounds, Bioceramics, Ferroelectricity, Electric conductivity, Permittivity, Calcium phosphate",

author = "Gittings, {J P} and Bowen, {C R} and Turner, {I G} and Fran Baxter and Julian Chaudhuri",

year = "2007",

doi = "10.1016/j.jeurceramsoc.2007.02.120",

language = "English",

volume = "27",

pages = "4187--4190",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier",

number = "13-15",

}

TY - JOUR

T1 - Characterisation of ferroelectric-calcium phosphate composites and ceramics

AU - Gittings, J P

AU - Bowen, C R

AU - Turner, I G

AU - Baxter, Fran

AU - Chaudhuri, Julian

PY - 2007

Y1 - 2007

N2 - This paper studies the effect of composite composition on the electrical properties of BaTiO3-hydroxyapatite (HA) composites and examines the high temperature electrical properties of pure HA. At least 80% volume of BaTiO3 was needed for the composites to exhibit any stress-induced piezoelectric potential. At elevated temperatures, pure HA exhibits an increase in real part of conductivity and permittivity. The increased ionic conductivity at elevated temperatures can be used to manufacture polarised HA bioceramics with permanent surface charges as polarised HA exhibited a depolarisation current at elevated temperatures. © 2007 Elsevier Ltd. All rights reserved.

AB - This paper studies the effect of composite composition on the electrical properties of BaTiO3-hydroxyapatite (HA) composites and examines the high temperature electrical properties of pure HA. At least 80% volume of BaTiO3 was needed for the composites to exhibit any stress-induced piezoelectric potential. At elevated temperatures, pure HA exhibits an increase in real part of conductivity and permittivity. The increased ionic conductivity at elevated temperatures can be used to manufacture polarised HA bioceramics with permanent surface charges as polarised HA exhibited a depolarisation current at elevated temperatures. © 2007 Elsevier Ltd. All rights reserved.

KW - Piezoelectricity

KW - Hydroxyapatite

KW - Barium compounds

KW - Bioceramics

KW - Ferroelectricity

KW - Electric conductivity

KW - Permittivity

KW - Calcium phosphate

UR - http://dx.doi.org/10.1016/j.jeurceramsoc.2007.02.120

U2 - 10.1016/j.jeurceramsoc.2007.02.120

DO - 10.1016/j.jeurceramsoc.2007.02.120

M3 - Article

SN - 0955-2219

VL - 27

SP - 4187

EP - 4190

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 13-15

ER -

Characterisation of ferroelectric-calcium phosphate composites and ceramics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

FUNCTIONAL BIOCERAMIC COMPOSITES FOR ENHANCED AND CONTROLLED BONE GROWTH IN BIOMEDICAL AND TISSUE ENGINEERING APPLICATIO

Cite this

Characterisation of ferroelectric-calcium phosphate composites and ceramics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

FUNCTIONAL BIOCERAMIC COMPOSITES FOR ENHANCED AND CONTROLLED BONE GROWTH IN BIOMEDICAL AND TISSUE ENGINEERING APPLICATIO

Cite this