Elastic Losses and Dispersion in Ceramic Matrix Composites

In this paper an experimental study of different ceramic matrix composites with high elastic losses (porous piezoceramics, composites ceramics/crystals) were carried out. Complex sets of elastic, dielectric, and piezoelectric parameters of the porous piezoceramics and ceramic matrix piezocomposites...

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Bibliographic Details
Published in:Ferroelectrics 2015-08, Vol.484 (1), p.69-77
Main Authors: Naumenko, A. A., Lugovaya, M. A., Shcherbinin, S. A., Rybyanets, A. N.
Format: Article
Language:English
Subjects:
Ceramic matrix composites
Dispersion
Ferroelectrics
Keywords Elastic losses
scattering
dispersion
ceramic matrix piezocomposites
complex impedance
Microstructure
Scanning electron microscopy
Spectrum analysis
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Summary:In this paper an experimental study of different ceramic matrix composites with high elastic losses (porous piezoceramics, composites ceramics/crystals) were carried out. Complex sets of elastic, dielectric, and piezoelectric parameters of the porous piezoceramics and ceramic matrix piezocomposites were determined by the impedance spectroscopy method using Piezoelectric Resonance Analysis software. Microstructure of polished and chipped surfaces of composite samples was observed with the optical and scanning electron microcopies. Experimental frequency dependencies of attenuation coefficients and ultrasonic velocities for different ceramic matrix composites were compared with the theoretical results obtained using general Kramers-Kronig relations between the ultrasonic attenuation and dispersion.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2015.1059719