By Topic

Experimental determination of the surface acoustic wave properties of new fine grain piezoelectric ceramics

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 $31
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)
Feuillard, G. ; G.I.P. Ultrasons/L.B.M., Université F. Rabelais, 2 Bis Bd Tonnellé B.P. 3223, 37032 Tours Cedex, France ; Lethiecq, M. ; Amazit, Y. ; Certon, D.
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.355339 

The surface acoustic wave (SAW) properties, i.e., free surface wave velocity, surface coupling coefficient, and static surface permittivity, of a lead titanate composition modified with an additive of samarium and processed by hydrothermal synthesis are determined. The effective permittivity of the piezoelectric ceramic was calculated, and the SAW properties were extracted from the analysis of the curve. In particular, the relations between the square coupling coefficient, the effective permittivity, and the usual definition k2s=2ΔV/V are discussed. In parallel, experimental measurements of the SAW properties were carried out by developing a curve‐fitting algorithm on the real and imaginary parts of a unapodized single electrode SAW transducer. A free surface wave velocity of 2595 m/s, a coupling coefficient of 1.8%, and a static permittivity of 196 are found which were predicted by the analysis of the effective permittivity curves. The SAW properties of a Y+128° cut lithium niobate single crystal are also presented and are in agreement with those found in literature. These results are discussed and suggest that the present ceramic has the potential as a substrate for SAW devices.

Published in:

Journal of Applied Physics  (Volume:74 ,  Issue: 11 )