Elastic loss and dispersion in ceramic-matrix piezocomposites

被引：13

作者：

Rybyanets, A. N. ^{[1
]}

Naumenko, A. A. ^{[1
]}

Konstantinov, G. M. ^{[1
]}

Shvetsova, N. A. ^{[1
]}

Lugovaya, M. A. ^{[1
]}

机构：

[1] Southern Fed Univ, Inst Phys Res, Rostov Na Donu 344090, Russia

来源：

PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 03期

关键词：

TECHNOLOGY;

D O I：

10.1134/S1063783415030269

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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.

引用

页码：558 / 562

页数：5

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