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Synthesis of 0.4Pb(Mg 1/3 Nb 2/3 )O 3 –0.3Pb(Mg 1/2 W 1/2 )O 3 –0.3PbTiO 3 Ceramics by Metal Alkoxide Method, and Its Dielectric Properties
Author(s) -
Aruga Atsushi,
Nakamura Yoshikazu,
Aoi Tsuneharu,
Watanabe Yoshihisa,
Hirayama Shigekazu,
Fujimoto Shirou
Publication year - 1993
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.1151-2916.1993.tb04045.x
Subject(s) - calcination , analytical chemistry (journal) , perovskite (structure) , dielectric , materials science , alkoxide , metal , mineralogy , phase (matter) , pellets , nuclear chemistry , inorganic chemistry , crystallography , chemistry , metallurgy , catalysis , optoelectronics , organic chemistry , chromatography , composite material , biochemistry
0.4Pb(Mg 1/3 Nb 2/3 )O 3 –0.3Pb(Mg 1/2 W 1/2 )O 3 –0.3PbTiO 3 + x MgO ( x = 0 to 0.04) were prepared by a metal alkoxide method. The percent of perovskite phase of the calcined powders increased with increased calcination temperatures. About 89% of perovskite phase was obtained at 1050°C. The dielectric constant of the pellets fired at 1100°C was increased by the addition of 10 wt% excess Mg(OC 2 H 5 ) 2 and had a maximum value of 7532 at 1 kHz.