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Molten‐Salt Synthesis of Ba 1– x Pb x TiO 3 in the System BaTiO 3 –PbCl 2
Author(s) -
Ito Yoshiho,
Shimada Shiro,
Inagaki Michio
Publication year - 1995
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.1151-2916.1995.tb08043.x
Subject(s) - solid solution , materials science , analytical chemistry (journal) , molten salt , hot isostatic pressing , x ray crystallography , phase (matter) , dielectric , mineralogy , sintering , crystallography , chemistry , metallurgy , diffraction , optoelectronics , organic chemistry , physics , chromatography , optics
Ba 1– x Pb x TiO 3 powder with a fixed composition was prepared by the reaction of BaTiO 3 powders with molten PbCl 2 at various PbCl 2 /BaTiO 3 molar ratios at 600° and 800°C in a nitrogen atmosphere. When 0.1 μm powder was used, the reaction was finished when x = 0.9. Two phases of BaTiO 3 and a solid solution of Ba 1– x Pb x TiO 3 coexisted, but the final phase gave a solid solution of Ba 1– x Pb x TiO 3 at 800°C. When 0.5 μm powder was used, the two phases coexisted in the products at 600°C at PbCl 2 /BaTiO 3 = 1.0. A sintered compact of Ba 1– x Pb x TiO 3 powders solid solution was prepared by hot isostatic pressing, and its dielectric constant was measured in the temperature range 20°–550°C.