Abstract
Piezoelectric devices with complex electrode geometries often contain ferroelectric regions that experience little or no electric field and remain unpolarised. Since the un-poled and poled material properties differ it is desirable to account for these regions in a device when developing predictive models or to design piezoelectric transducers. The lack of published data on the elastic properties for un-poled ferroelectrics, specifically the numerous commercial compositions such as lead zirconate titanate, reflects the difficulty of experimental measurement. In this work, a method for predicting un-poled properties from more commonly available poled data has been developed. A new method of calculating these properties is presented which provides a rapid and practical solution to the problem of evaluating the isotropic stiffness and Poisson’s ratio for an un-poled ferroelectric material. The way in which this calculation has been derived and validated is presented and detailed comparisons are made with alternative methods and experimental data.
| Language | English |
|---|---|
| Pages | 253-263 |
| Number of pages | 11 |
| Journal | Science and Technology of Advanced Materials |
| Volume | 18 |
| Issue number | 1 |
| Early online date | 15 Mar 2017 |
| DOIs | |
| Status | Published - 12 Apr 2017 |
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Keywords
- elastic
- Ferroelectric
- piezoelectric ceramic
- poled
- un-poled
ASJC Scopus subject areas
- Materials Science(all)
Cite this
A new method to determine the un-poled elastic properties of ferroelectric materials. / Bowen, Chris R.; Dent, Andrew C.; Stevens, Ron; Cain, Markys G.; Avent, Andrew.
In: Science and Technology of Advanced Materials, Vol. 18, No. 1, 12.04.2017, p. 253-263.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A new method to determine the un-poled elastic properties of ferroelectric materials
AU - Bowen, Chris R.
AU - Dent, Andrew C.
AU - Stevens, Ron
AU - Cain, Markys G.
AU - Avent, Andrew
PY - 2017/4/12
Y1 - 2017/4/12
N2 - Piezoelectric devices with complex electrode geometries often contain ferroelectric regions that experience little or no electric field and remain unpolarised. Since the un-poled and poled material properties differ it is desirable to account for these regions in a device when developing predictive models or to design piezoelectric transducers. The lack of published data on the elastic properties for un-poled ferroelectrics, specifically the numerous commercial compositions such as lead zirconate titanate, reflects the difficulty of experimental measurement. In this work, a method for predicting un-poled properties from more commonly available poled data has been developed. A new method of calculating these properties is presented which provides a rapid and practical solution to the problem of evaluating the isotropic stiffness and Poisson’s ratio for an un-poled ferroelectric material. The way in which this calculation has been derived and validated is presented and detailed comparisons are made with alternative methods and experimental data.
AB - Piezoelectric devices with complex electrode geometries often contain ferroelectric regions that experience little or no electric field and remain unpolarised. Since the un-poled and poled material properties differ it is desirable to account for these regions in a device when developing predictive models or to design piezoelectric transducers. The lack of published data on the elastic properties for un-poled ferroelectrics, specifically the numerous commercial compositions such as lead zirconate titanate, reflects the difficulty of experimental measurement. In this work, a method for predicting un-poled properties from more commonly available poled data has been developed. A new method of calculating these properties is presented which provides a rapid and practical solution to the problem of evaluating the isotropic stiffness and Poisson’s ratio for an un-poled ferroelectric material. The way in which this calculation has been derived and validated is presented and detailed comparisons are made with alternative methods and experimental data.
KW - elastic
KW - Ferroelectric
KW - piezoelectric ceramic
KW - poled
KW - un-poled
UR - http://www.scopus.com/inward/record.url?scp=85019157650&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1080/14686996.2017.1302274
UR - http://dx.doi.org/10.1080/14686996.2017.1302274
U2 - 10.1080/14686996.2017.1302274
DO - 10.1080/14686996.2017.1302274
M3 - Article
VL - 18
SP - 253
EP - 263
JO - Science and Technology of Advanced Materials
T2 - Science and Technology of Advanced Materials
JF - Science and Technology of Advanced Materials
SN - 1468-6996
IS - 1
ER -