By Topic

Improving the Magnetoelectric Response of Laminates Containing High Temperature Piezopolymers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Gutierrez, J. ; Dept. Electr. y Electron., Univ. del Pais Vasco UPV/EHU, Bilbao, Spain ; Lasheras, A. ; Barandiaran, J.M. ; Vilas, J.L.
more authors

High magnetoelectric (ME) coefficients at room temperature have been found when 2-2 type laminates (one magnetostrictive, the other piezoelectric) made of iron-based Metglas alloys and PVDF piezoelectric polymer are used. Searching for a good ME response of such laminate composites when used at high temperatures, we have modified both constituents: first, by using magnetostrictive Metglas 2826 MB (with λs ≈ 11 ppm) in the ribbon form thermally treated at high temperature, in order to get internal stress-relief conditions. The main consequence of such thermal treatment has been to achieve a piezomagnetic coefficient of d33=1.5×10-6/Oe, higher than the measured one in the as-cast state for this alloy. As piezoelectric constituent, we have used a new class of high temperature piezopolymer: a series of nitrile containing polyimide copolymers were fabricated with a mixture of two aromatic diamines, namely 1,3-Bis-2-cyano-3-(3-aminophenoxy)phenoxybenzene (diamine 2CN) and 1,3-Bis(3-aminophenoxy)benzene (diamine 0CN). Those diamines were in 30/70, 40/60, and 50/50 proportions within the 0CN/2CN mixture. We have measured room temperature ME coefficients up to 0.37 V/cm.Oe, being this value directly correlated to the remnant polarization of each copolyimide.

Published in:

Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 1 )