Journal of Intelligent Material Systems and Structures

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

SAGETRACK

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (OnlineFirst PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrow Add to My Marked Citations
Google Scholar
Right arrow Articles by Chan, C.-M.
Right arrow Articles by Gregory, C.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
First published on March 12, 2008
Journal of Intelligent Material Systems and Structures 2008, doi:10.1177/1045389X07085410

Article

Analytically Evaluating the Properties and Performance of Layered Magnetoelectric Composites

Chia-Ming Chan* and Carman Gregory

Department of Mechanical and Aerospace Engineering, University of California, Los Angeles 420 Westwood Plaza, Los Angeles, CA90095, USA

* To whom correspondence should be addressed.


  Abstract

A theoretical model has been developed for predicting the magnetoelectric (M-E) coupling effect of magnetostrictive-piezoelectric layered composites (MPLC). This model determines the individual effects of MPLC configurations and material properties on the homogenized M-E voltage coefficient, {alpha}', curves. By analyzing the model, a 3D {alpha}' sequencing map covering the span of compliance, Poisson's ratio, and piezomagnetic coefficient ratio q33/q31 of the magnetostrictive phases is generated to aid the MPLC design. Six MPLC configurations are addressed in this study, including three field orientations, longitudinal, transverse, and in-plane, in both 1D and 2D geometries. Results show that the piezoelectric volume fraction required for achieving the maximum M-E effect is dependent upon the compliance. Higher compliance values cause the {alpha}' peaks to be attenuated, as well as shifted to lower piezoelectric volume fractions. This study also investigates the influence of the piezomagnetic coefficient q33 and the ratio q33/q31 on {alpha}'. For a constant ratio q33/q31, larger q33-values increase {alpha}'. However, changing this ratio alters the relative ordering of the {alpha}'-values for each of the six MPLC configurations studied. This demonstrates that the ratio q33/q31 strongly influences the selection of the MPLC configurations to produce the largest M-E coupling effect. By integrating the results from this model into 3D {alpha}' sequencing map, the ideal MPLC configuration with the highest M-E coupling effect can be predicted for all possible MPLC magnetostrictive phases.

Key Words: magnetoelectric, modeling, magnetoelectric voltage coefficient, piezoelectric, magnetostrictive, layered.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?