Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 47, Issue 35, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/47/35/355302
Keywords
thermoacoustics; carbon nanotubes; vibration of plates
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Funding
- Office of Naval Research [N00014-14-1-0152, N00014-13-1-0073, N00014-13-1-0180]
- Air Force Office of Scientific Research [FA9550-12-1-0211]
- Robert A Welch Foundation [AT-0029]
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Carbon nanotubes (CNT) generate smooth-spectra sound over a wide frequency range (1-10(5) Hz) by means of thermoacoustics (TA). The protective encapsulation of CNT sheets in inert gases between rigid vibrating plates provides resonant features in the TA sound projector. The vibrational modes of plates and the compliance of the soft sealing spacers between those plates are studied with the aim of creating efficient, tunable underwater sound generation at relatively low frequencies, 10 Hz-10 kHz.
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