NDLI: Acoustic properties of particle/polymer composites for ultrasonic transducer backing applications

Content Provider	IEEE Xplore Digital Library
Author	Grewe, M.G. Gururaja, T.R. Shrout, T.R. Newnham, R.E.
Copyright Year	1986
Abstract	The acoustic impedance and attenuation in composites made of particle fillers loaded in polymer matrices for transducer backing applications is investigated. The acoustic impedance of tungsten/vinyl composites was modeled, and an experimental matrix identifying variables that contribute to composite attenuation was established. The variable included the particle type, the particle size and volume fraction of a filler, the physical characteristics of the polymer matrix, and the processing route that determined the composite connectivity. Experimental results showed that with an increase in filler particle size or a decrease in volume fraction of filler, there is an increase in composite attenuation. Overall, the various types of filler, the polymer matrix, and the interface between the two contribute to attenuation in the composite, as confirmed by the acoustic properties and the microstructural analysis.<>
Page Count	9
File Size	916040
Starting Page	506
Ending Page	514
File Format	PDF
ISSN	08853010
Volume Number	37
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic applications Polymers Ultrasonic transducers Impedance Acoustic transducers Attenuation Acoustic materials Tungsten Acoustic pulses Absorption
Content Type	Text
Resource Type	Article
Subject	Acoustics and Ultrasonics Instrumentation Electrical and Electronic Engineering

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