Acoustic quality factor of an aluminium alloy for gravitational wave antennae below 1 K

Details Acoustic quality factor of an aluminium alloy for gravitational wave antennae below 1 K Acoustic quality factor of an aluminium alloy for gravitational wave antennae below 1 K

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nciml..41..242c&link_type=abstract

Nuovo Cimento, Lettere, Serie 2, vol. 41, Oct. 13, 1984, p. 242-246.

Physics

12

Acoustic Properties, Aluminum Alloys, Gravitational Wave Antennas, Low Temperature Physics, Resonant Vibration, Anelasticity, Cryogenic Cooling, Q Factors

Scientific paper

Measurements of the acoustic Q-factor of an Al-5056 bar at the 35-kHz
frequency of its first longitudinal resonance are reported for the
temperature range 0.1-300 K. The data are characterized by a plateau
below 10 K at Q = 4.1 x 10 to the 7th. The interest of this result for a
gravitational-radiation experiment is discussed.

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