Referenced Items are not available for this document.
The acoustic properties of passive materials for ultrasonic transducers have been measured at room temperature in the frequency range from 25 to 65 MHz using ultrasonic spectroscopy. These materials include alumina/EPO-TEK 301 composites and tungsten/EPO-TEK 301 composites. Experimental results showed that the acoustic impedance of the composites monotonically increased with the volume fraction of the particle filler, which is in agreement with the Denavey model. The attenuation, however, peaked between 7 and 9% volume fraction of particle filler. For comparison, several other passive materials were also fabricated and measured. The results suggest that materials that possess a higher attenuation also appear to have a larger velocity dispersion.
Published in:
Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on
(Volume:48
,
Issue:
1
)
Date of Publication: Jan. 2001
- Page(s):
- 78 - 84
- ISSN :
- 0885-3010
- INSPEC Accession Number:
- 6829524
- Digital Object Identifier :
- 10.1109/58.895911
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 07 August 2002
- Issue Date :
- Jan. 2001
- Sponsored by :
- IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society
- PubMed ID :
- 11367809
About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.
