Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites

C. R. Bowen; J. Gittings; I. G. Turner; F. Baxter; J. B. Chaudhuri

doi:10.1063/1.2355458

Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites

C. R. Bowen, J. Gittings, I. G. Turner, F. Baxter, J. B. Chaudhuri

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

76 Citations (SciVal)

Abstract

This letter describes the relationships between the composition and the dielectric and piezoelectric properties of hydroxyapatite-barium titanate composites for polarized bone substitutes. The ac conductivity and permittivity were characterized from 0.1 Hz to 1 MHz, along with measurements of the d 33 piezoelectric charge coefficient. The addition of BaTiO 3 led to an increase in permittivity and ac conductivity of the material. The increase in both properties was attributed to the presence of the high permittivity ferroelectric phase. The d33 and g33 coefficients decreased rapidly as hydroxyapatite was introduced into BaTiO 3 material. Composites below 80% by volume of BaTiO3 exhibited no net piezoelectric effect.

Original language	English
Article number	132906
Number of pages	1
Journal	Applied Physics Letters
Volume	89
Issue number	13
DOIs	https://doi.org/10.1063/1.2355458
Publication status	Published - 2006

Bibliographical note

ID number: ISI:000240875800093

Keywords

Piezoelectricity
Dielectric properties
Hydroxyapatite
Composite materials
Barium titanate
Ferroelectricity
Measurement theory
Electric conductivity
Permittivity

Access to Document

10.1063/1.2355458

Cite this

@article{818ac1c20a0c4ae0be1584accbd88c09,

title = "Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites",

abstract = "This letter describes the relationships between the composition and the dielectric and piezoelectric properties of hydroxyapatite-barium titanate composites for polarized bone substitutes. The ac conductivity and permittivity were characterized from 0.1 Hz to 1 MHz, along with measurements of the d 33 piezoelectric charge coefficient. The addition of BaTiO 3 led to an increase in permittivity and ac conductivity of the material. The increase in both properties was attributed to the presence of the high permittivity ferroelectric phase. The d33 and g33 coefficients decreased rapidly as hydroxyapatite was introduced into BaTiO 3 material. Composites below 80% by volume of BaTiO3 exhibited no net piezoelectric effect. ",

keywords = "Piezoelectricity, Dielectric properties, Hydroxyapatite, Composite materials, Barium titanate, Ferroelectricity, Measurement theory, Electric conductivity, Permittivity",

author = "Bowen, {C. R.} and J. Gittings and Turner, {I. G.} and F. Baxter and Chaudhuri, {J. B.}",

note = "ID number: ISI:000240875800093",

year = "2006",

doi = "10.1063/1.2355458",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "13",

}

TY - JOUR

T1 - Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites

AU - Bowen, C. R.

AU - Gittings, J.

AU - Turner, I. G.

AU - Baxter, F.

AU - Chaudhuri, J. B.

N1 - ID number: ISI:000240875800093

PY - 2006

Y1 - 2006

N2 - This letter describes the relationships between the composition and the dielectric and piezoelectric properties of hydroxyapatite-barium titanate composites for polarized bone substitutes. The ac conductivity and permittivity were characterized from 0.1 Hz to 1 MHz, along with measurements of the d 33 piezoelectric charge coefficient. The addition of BaTiO 3 led to an increase in permittivity and ac conductivity of the material. The increase in both properties was attributed to the presence of the high permittivity ferroelectric phase. The d33 and g33 coefficients decreased rapidly as hydroxyapatite was introduced into BaTiO 3 material. Composites below 80% by volume of BaTiO3 exhibited no net piezoelectric effect.

AB - This letter describes the relationships between the composition and the dielectric and piezoelectric properties of hydroxyapatite-barium titanate composites for polarized bone substitutes. The ac conductivity and permittivity were characterized from 0.1 Hz to 1 MHz, along with measurements of the d 33 piezoelectric charge coefficient. The addition of BaTiO 3 led to an increase in permittivity and ac conductivity of the material. The increase in both properties was attributed to the presence of the high permittivity ferroelectric phase. The d33 and g33 coefficients decreased rapidly as hydroxyapatite was introduced into BaTiO 3 material. Composites below 80% by volume of BaTiO3 exhibited no net piezoelectric effect.

KW - Piezoelectricity

KW - Dielectric properties

KW - Hydroxyapatite

KW - Composite materials

KW - Barium titanate

KW - Ferroelectricity

KW - Measurement theory

KW - Electric conductivity

KW - Permittivity

UR - http://dx.doi.org/10.1063/1.2355458

U2 - 10.1063/1.2355458

DO - 10.1063/1.2355458

M3 - Article

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

M1 - 132906

ER -

Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites

Abstract

Bibliographical note

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

Dielectric and piezoelectric properties of hydroxyapatite-BaTiO3 composites

Abstract

Bibliographical note

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