000015486 001__ 15486
000015486 005__ 20161115100223.0
000015486 04107 $$aeng
000015486 046__ $$k2016-08-21
000015486 100__ $$aKobayashi, Takuya
000015486 24500 $$aPiezoelectric and dielectric properties of barium titanate polycrystals

000015486 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015486 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015486 506__ $$arestricted
000015486 520__ $$2eng$$aThis work deals with the electromechanical problems of poled barium titanate (BaTiO3) polycrystals with oxygen vacancies. A phase field model is developed for ferroelectric polycrystals, coupled with the time-dependent Ginzburg-Landau theory and the oxygen vacancies diffilsion, to demonstrate the interaction between oxygen vacancies and domain evolutions. To generate grain structures, the phase field model for grain growth is also used. The strain vs stress curve and strain vs electric field curve are calculated, and the effects of grain size and oxygen vacancy density on the piezoelectric and dielectric properties of the BaTiO3 polycrystals are discussed.

000015486 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015486 653__ $$a

000015486 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015486 720__ $$aKobayashi, Takuya
000015486 8560_ $$ffischerc@itam.cas.cz
000015486 8564_ $$s143738$$uhttps://invenio.itam.cas.cz/record/15486/files/TS.SM15-4.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2893, code TS.SM15-4.04
.
000015486 962__ $$r13812
000015486 980__ $$aPAPER