Characterization of ZrO2/PZT Nanocomposites Ceramics Prepared by the Citrate Precursor Route

Jian Hua Li

doi:10.4028/www.scientific.net/MSF.852.407

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HomeMaterials Science ForumMaterials Science Forum Vol. 852Characterization of ZrO2/PZT Nanocomposites...

Characterization of ZrO₂/PZT Nanocomposites Ceramics Prepared by the Citrate Precursor Route

Abstract:

Lead zirconate titanate (PZT)-based nanocomposites embedded with ZrO₂ nanoparticles were fabricated by citrate precursor route from metastable phases in situ. The effect of ZrO₂ content on mechanical and piezoelectric properties of composites was investigated. m-ZrO₂ particles covering 30-70 nm are dispersed homogenously inside the PZT matrix grain with stress strips around m-ZrO₂ nanoparticles. The fracture mode changes from intergranular to intragranular with increasing the amount of ZrO₂. Transformation toughening and nanoparticle dispersion toughening of ZrO₂ contributed to the reinforcement of the PZT/ZrO₂ nanocomposites. It is exciting to found that the mechanical properties as well as the piezoelectric properties were both increased compared with those of monolithic PZT when add a certain amount of ZrO₂.

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Materials Science Forum (Volume 852)

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407-410

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https://doi.org/10.4028/www.scientific.net/MSF.852.407

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April 2016

Authors:

Jian Hua Li

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Mechanical Properties, Piezoelectricity, X-Ray Diffraction

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