DocumentCode :
3228679
Title :
Collinear composite materials for impedance matching
Author :
Harris, P. ; Wu, D. ; Thomson, M. ; Petherick, R. ; Lecarpentier, F. ; Chen, H.
Author_Institution :
Ind. Res. Ltd., Lower Hutt, New Zealand
fYear :
2011
fDate :
18-21 Oct. 2011
Firstpage :
1940
Lastpage :
1943
Abstract :
This work extends our study of highly collinear composites to use nanorod materials as a means of providing impedance matching. We have fabricated nanorod (300nm diameter 0.5mm length) materials having high regularity (diameter and spacing) that are highly collinear (rods continuous from face to face of the sample). A comparison is made to conventional loaded epoxy. We find in experimental work that for the nanorod material there was no observable transmission frequency dependence up to 120MHz, by comparison we find loaded epoxy is very sensitive to frequency.
Keywords :
alumina; filled polymers; impedance matching; nanocomposites; nanofabrication; nanoporous materials; nanorods; resins; Al2O3; collinear composite materials; conventional loaded epoxy; impedance matching; nanorod materials; porous alumina; size 0.5 mm; size 300 nm; transmission frequency dependence; Absorption; Acoustics; Face; Impedance; Powders; Solids; impedance; nanoporous; nanorod;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2011 IEEE International
Conference_Location :
Orlando, FL
ISSN :
1948-5719
Print_ISBN :
978-1-4577-1253-1
Type :
conf
DOI :
10.1109/ULTSYM.2011.0483
Filename :
6293342
Link To Document :
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