Preparation of Pb(Zr,Ti)O3–Pb(Mg1/3Nb2/3)O3 piezoelectric ceramics by dry–dry method

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

“…Thus, preparing m-ZrO 2 particles dispersed in PZT nanocomposites is, in theory, a good method to improve the mechanical properties. However, previous researches neglect to consider the importance of preparation method, so the size of m-ZrO 2 particles is relatively large (100-500 nm) in so-called ZrO 2 /PZT nanocomposites [8]. Although the methods and techniques mentioned above have, to some degree, achieved some improvements on mechanical properties, it is at the expense of decreasing piezoelectric properties.…”

“…The result of reinforcement arises in part from the reactions between the PZT matrix and the second phase, as well as the grain size and the quantity of the second phase [1]. Moreover ceramics produced by conventional route is often accompanied with severe composition fluctuation on B-site which may result in the sample composed of regions of quite different Zr/Ti ratio and properties [8]. The citrate precursor route [9] is one of the achievements in recent years, which is a good way to overcome the shortcomings of compositional fluctuation and can prepare fine crystals of PTZ ceramic powder as well.…”