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The results of practical implementation of a new method for porouspiezoceramics, and ceramic matrixpiezocomposites fabrication were presented. The method was based onnanoparticles transport in ceramic matrices using a polymer nanogranules coatedor filled with a various chemicals, with successive porous ceramics fabricationprocesses. Different types of polymer microgranules filled and coated bymetal-containing nanoparticles were used for a pilot samples fabrication.Polymer microgranules were examined using transmission and scanning electronmicroscopy as well as by EXAFS and X-ray emission spectroscopy. Pilot samplesof nano- and microporous ceramics and composites were fabricated usingdifferent piezoceramics compositions PZT, lead potassium niobateand lead titanate as a ceramic matrix bases. Resulting ceramic matrix piezocomposites werecomposed by super lattices of closed or open pores filled or coated bynanoparticles of metals, oxides, ferromagnetics etc. embedded in piezoceramicmatrix. Dielectric and piezoelectric parameters of pilot samples were measuredusing piezoelectric resonance analysis method. New family of nano- andmicroporous piezoceramics and ceramicmatrix piezocomposites are characterized by a unique spectrum of theelectrophysical properties unachievable for standard PZT ceramic compositionsand fabrication methods.

KEYWORDS

Nanoparticles; Polymer Nanogranules; Porous Ceramics; Ceramic Matrix Composites

Cite this paper

A. Rybyanets and A. Naumenko -Nanoparticles Transport in Ceramic Matriсes: A Novel Approach for Ceramic Matrix Composites Fabrication,- Journal of Modern Physics, Vol. 4 No. 8, 2013, pp. 1041-1049. doi: 10.4236-jmp.2013.48140.





Autor: Andrey N. Rybyanets, Anastasia A. Naumenko

Fuente: http://www.scirp.org/



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