|
Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2009, Volume 50, Issue 4, Pages 121–127
(Mi pmtf1772)
|
|
|
|
This article is cited in 5 scientific papers (total in 5 papers)
Effect of the porosity and particle size of materials on sound-wave velocity
S. S. Sekoyana, V. R. Schlegela, S. S. Batsanovab, S. M. Gavrilkinab, K. B. Poyarkovc, A. A. Gurkovc, A. A. Durovc a All-Russia Research Institute of Physicotechnical and Radio Engineering Measurements, Mendeleevo, 141570, Moscow Region, Russia
b Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, 142432, Moscow Region, Russia
c Moscow State Institute of Electronic Engineering (Technical university), Moscow, 124498, Zelenograd, Russia
Abstract:
Methods were developed to measure longitudinal and transverse sound velocities in porous materials – various Zn–S mixtures and KBr samples. It is shown that, on exposure to ultrasound with a wavelength far exceeding the pore size in pressed samples, a porous body behaves as a continuous medium. Sound velocity in a porous material was found to depend on the quantitative ratio of vacuum, air, and toluene in the pores. Bulk sound velocities estimated using an additive method agree with experimental data within an error not more than 10%. It was found that removal of moisture traces from porous samples led to significant absorption of sound waves.
Keywords:
longitudinal, shear and bulk sound velocities, porous body, elastic modulus.
Received: 09.07.2008
Citation:
S. S. Sekoyan, V. R. Schlegel, S. S. Batsanov, S. M. Gavrilkin, K. B. Poyarkov, A. A. Gurkov, A. A. Durov, “Effect of the porosity and particle size of materials on sound-wave velocity”, Prikl. Mekh. Tekh. Fiz., 50:4 (2009), 121–127; J. Appl. Mech. Tech. Phys., 50:4 (2009), 646–650
Linking options:
https://www.mathnet.ru/eng/pmtf1772 https://www.mathnet.ru/eng/pmtf/v50/i4/p121
|
Statistics & downloads: |
Abstract page: | 29 | Full-text PDF : | 2 |
|