Nonlinear acoustic properties of the B95 aluminum alloy and the B95/nanodiamond composite
Abstract
Research results for the nonlinear acoustic properties of the B95 polycrystalline aluminum alloy and the B95/nanodiamond composite have been described. The nonlinear properties of the alloys have been studied by the spectral method that measures the efficiency of generation of the second harmonic of a bulk acoustic wave at a frequency of 2f = 10 MHz in the field of a finite-amplitude longitudinal acoustic wave at a frequency of f = 5 MHz. The results derived by this method have been compared with the results of studies of the nonlinear acoustic properties of the test alloys using the Thurston–Brugger quasi-static method.
- Publication:
-
Acoustical Physics
- Pub Date:
- November 2016
- DOI:
- 10.1134/S1063771016050067
- Bibcode:
- 2016APhy...62..681K
- Keywords:
-
- B95 alloy;
- B95/nanodiamond composite;
- nonlinear acoustic parameter;
- second- and third-order elastic coefficients;
- Thurston-Brugger method;
- spectral method;
- Thurston–Brugger method