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Preparation of Perovskite Pb(Mg 1/3 Nb 2/3 )0 3 Using Pb 3 Nb 2 0 8 and MgO
Author(s) -
Guha J. P.,
Anderson H. U.
Publication year - 1986
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.1151-2916.1986.tb07379.x
Subject(s) - perovskite (structure) , stoichiometry , materials science , volatilisation , phase (matter) , oxide , mineralogy , solid solution , analytical chemistry (journal) , inorganic chemistry , crystallography , chemistry , metallurgy , organic chemistry , chromatography
The synthesis of perovskite Pb(Mg 1/3 Nb 2/3 )O 3 from an equimolar mixture of Pb 3 Nb 2 0 8 and MgO was studied by solid‐state reaction techniques. An addition of 1 wt% excess MgO to the stoichiometric composition enhances the formation of the cubic perovskite phase. The absence of free PbO in the initial starting materials minimizes the volatilization loss during firing, thereby reducing the possibility of any compositional change and resulting in a substantial improvement of the perovskite phase purity over the conventional mixed‐oxide processing.