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Synthesis of Lead Nickel Niobate–Lead Zirconate Titanate Solid Solutions by a B‐site Precursor Method
Author(s) -
Robert Gilles,
Maeder Marlyse Demartin,
Damjanovic Dragan,
Setter Nava
Publication year - 2001
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2001.tb01107.x
Subject(s) - columbite , materials science , lead zirconate titanate , lead titanate , calcination , zirconate , solid solution , titanate , nickel , perovskite (structure) , lead oxide , phase (matter) , electroceramics , rutile , mineralogy , chemical engineering , ferroelectricity , metallurgy , ceramic , chemistry , fabrication , biochemistry , optoelectronics , organic chemistry , dielectric , engineering , catalysis , medicine , microfabrication , alternative medicine , pathology
A modified processing method for lead nickel niobate–lead zirconate titanate (Pb(Ni 1/3 Nb 2/3 )O 3 –Pb(Zr,Ti)O 3 , PNN–PZT) solid solutions is presented. This method is based on the high‐temperature synthesis of a precursor that contains all the B‐site cations (Ti, Zr, Ni, and Nb). This synthesis yields a diphasic mixture that contains a ZrTiO 4 ‐like phase and a rutile‐like phase. Both phases exhibit a cationic valence of 4; thus, it is concluded that the mixing of Ni and Nb cations is adequate for the preparation of PNN–PZT solid solutions. Indeed, a pure perovskite phase has been obtained after calcination with lead oxide for compositions that contain 40 and 50 mol% PNN. Moreover, their electromechanical properties have been shown to be superior to values reported for standard columbite routes. This conclusion has been interpreted in terms of enhanced chemical homogeneity.