Synthesis of Perovskite Pb(Mg1/3Nb2/3)O3 Powder by Emulsion Method.

Abstract

The synthesis of the perovskite Pb (Mg1/3Nb2/3)O3 powder by the emulsion method was investigated. Pb(NO3)2, Mg(NO3)2•E6H2O, and Nb(HC2O4)5• nH2O were used as starting materials. Span 80, kerosene and paraffin oil were used to prepare organic phase. Finely dispersed emulsions of mixed solution were prepared with the organic phase and dried using the petroleum drying method. Emulsion size distribution was in the range of 0.7-4.0ƒÊm. Mean particle size of powders as-dried at 170•Ž and calcined at 800•Ž was 0.4 and 0.3ƒÊ m, respectively. A single phase of perovskite was obtained by calcination of as-dried powders at 800•Ž for 2h. The sintered body of emulsion-derived PMN at 1100•Ž showed a dielectric permittivity of over 11000.

A Concise Review Encircling Lead Free Porous Piezoelectric Ceramics

“…An innovative methodology encompassing the use of combination with sol-gel reactants and surfactants to fabricate macroporous structures from mono disperse oil droplets obtained by fractionation is the emulsion template method [78]. Highly porous PZT samples were prepared by particle-stabilized foams via gel-casting.…”

The Effect of Oxygen Pressure on the Synthesis of LiNiO₂

“…There were many researchers who applied the various kinds of method to synthesize LiNiO 2 with good electrochemical properties such as solid state reaction and solution methods of co-precipitation, solgel and ultrasonic spray pyrolysis [1][2][3]. Emulsion method is very effective to prepare materials of multi-component system and difficult to be synthesized because powder is prepared by dividing the homogeneous precursor solution into emulsion with organic phase [4,5]. In this study, we investigated the effect of oxygen pressure during synthesis of LiNiO 2 by adopting emulsion method as the powder preparation process.…”