Jones, Jacob L. ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten (2008)
Domain Switching During Electromechanical Poling in Lead Zirconate Titanate Ceramics.
In: Journal of the American Ceramic Society, 91 (5)
doi: 10.1111/j.1551-2916.2008.02327.x
Article, Bibliographie
Abstract
In many polycrystalline piezoelectric ceramics, domain switching during the poling process leads to the development of a macroscopic polarization and piezoelectric behavior. Traditionally, poling involves the application of electric fields across two parallel electrodes. In the present work, a radial mechanical compressive stress is applied transverse to the electric field, increasing the potential for domain alignment during poling by taking advantage of ferroelasticity. Experiments demonstrate that poling of lead zirconate titanate using a combination of an electric field and a transverse mechanical compressive stress increases the d33 coefficient from 435 to 489 pC/N. Using neutron diffraction and pole figure inversion methods, the degree of non-180° domain switching is described using pole density distributions of the tetragonal c-axis (002). The degree of 002 domain alignment parallel to the electric field after the electromechanical poling process increases from 1.30 multiples of a random distribution (mrd) to >1.40 mrd at stresses exceeding 40 MPa.
| Item Type: | Article |
|---|---|
| Erschienen: | 2008 |
| Creators: | Jones, Jacob L. ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten |
| Type of entry: | Bibliographie |
| Title: | Domain Switching During Electromechanical Poling in Lead Zirconate Titanate Ceramics |
| Language: | English |
| Date: | May 2008 |
| Journal or Publication Title: | Journal of the American Ceramic Society |
| Volume of the journal: | 91 |
| Issue Number: | 5 |
| DOI: | 10.1111/j.1551-2916.2008.02327.x |
| Abstract: | In many polycrystalline piezoelectric ceramics, domain switching during the poling process leads to the development of a macroscopic polarization and piezoelectric behavior. Traditionally, poling involves the application of electric fields across two parallel electrodes. In the present work, a radial mechanical compressive stress is applied transverse to the electric field, increasing the potential for domain alignment during poling by taking advantage of ferroelasticity. Experiments demonstrate that poling of lead zirconate titanate using a combination of an electric field and a transverse mechanical compressive stress increases the d33 coefficient from 435 to 489 pC/N. Using neutron diffraction and pole figure inversion methods, the degree of non-180° domain switching is described using pole density distributions of the tetragonal c-axis (002). The degree of 002 domain alignment parallel to the electric field after the electromechanical poling process increases from 1.30 multiples of a random distribution (mrd) to >1.40 mrd at stresses exceeding 40 MPa. |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 18 May 2011 15:20 |
| Last Modified: | 05 Mar 2013 09:47 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum