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Identification of nanocrystalline media by acoustic spectroscopy methods |
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| Authors: | A I Potapov I S Pavlov and S A Lisina |
| Institution: | 1.Nizhni Novgorod State Technical University, ul. Minina 24, Nizhni Novgorod, 603600, Russia ;2.Institute of Engineering Science, Nizhni Novgorod Branch, Russian Academy of Sciences, ul. Belinskogo 85, Nizhni Novgorod, 603024, Russia ; |
| Abstract: | The problem of parametric identification of a two-dimensional nanocrystalline medium consisting of circular particles arranged in a hexagonal lattice is considered. Differential equations are derived that describe propagation of acoustic and rotational waves in this medium. It is shown that, due to dispersion dependencies, microstructure parameters and moduli of elasticity of the nanocrystalline medium can be estimated from measured wave propagation velocities. |
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