Comparison of Terfenol-D and PZT-4 power limitations
- 1 August 1991
- journal article
- research article
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 90 (2) , 1184-1185
- https://doi.org/10.1121/1.402024
Abstract
A previous article [Moffett e t a l., J. Acoust. Soc. Am. 8 9, 1448–1455 (1991)], comparing the radiated‐power limitations of Terfenol‐D and PZT‐4, is revisited. When the power at resonance is stress‐limited (as is the case for high mechanical quality factor Q), the maximum allowable stress amplitude T max is the compressive prestress value, so that tension in the Terfenol‐D is avoided. When this value is chosen for T max, rather than the smaller T max’s of the previous article, Terfenol‐D is shown to be superior to PZT‐4 in power capability at all values of the quality factor Q.Keywords
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