This article is cited in 15 papers

Proceedings of the XX All-Russia Conference on Physics of Ferroelectrics (VKS-XX)

Elastic loss and dispersion in ceramic-matrix piezocomposites

A. N. Rybuanets, A. A. Naumenko, G. M. Konstantinov, N. A. Shvetsova, M. A. Lugovaya

Research Institute of Physics, Southern Federal University

Abstract: Ceramic-matrix composites of different types have been comprehensively studied using three-dimensional numerical simulation, resonance analysis of impedance spectra, and pulse-echo ultrasonic measurements. The results of finite-difference simulation of longitudinal ultrasonic wave propagation in different viscoelastic ceramic-matrix composites (porous ceramics and ceramics/crystal) have been presented. The experimental studies have revealed regions of elastic dispersion characterized by anomalies of the frequency dependences of the imaginary and real parts of the elastic moduli. The simulation results have been compared with experimental data.

 English version: Physics of the Solid State, 2015, 57:3, 558–562

Bibliographic databases:

•