Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

A hybrid phenomenological model for ferroelectroelastic ceramics. Part II: Morphotropic PZT ceramics

 
: Stark, Sebastian; Neumeister, Peter; Balke, Herbert

:

Journal of the Mechanics and Physics of Solids 95 (2016), pp.805-826
ISSN: 0022-5096
English
Journal Article
Fraunhofer IKTS ()
constitutive laws; piezoelectricity; ferroelectroelasticity

Abstract
In this part II of a two part series, the rate-independent hybrid phenomenological constitutive model introduced in part I is modified to account for the material behavior of morphotropic lead zirconate titanate ceramics (PZT ceramics). The modifications are based on a discussion of the available literature results regarding the micro-structure of these materials. In particular, a monoclinic phase and a highly simplified representation of the hierarchical structure of micro-domains and nano-domains observed experimentally are incorporated into the model. It is shown that experimental data for the commercially available morphotropic PZT material PIC151 (PI Ceramic GmbH, Lederhose, Germany) can be reproduced and predicted based on the modified hybrid model.

: http://publica.fraunhofer.de/documents/N-389208.html