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Raman Spectroscopy of Higher Titanate Phases in the BaTiO 3 ‐TiO 2 System
Author(s) -
JAVADPOUR JAFAR,
EROR NICHOLAS G.
Publication year - 1988
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.1151-2916.1988.tb05849.x
Subject(s) - raman spectroscopy , amorphous solid , materials science , phase (matter) , characterization (materials science) , analytical chemistry (journal) , spectroscopy , mineralogy , titanate , crystallography , ceramic , chemistry , nanotechnology , optics , metallurgy , physics , organic chemistry , chromatography , quantum mechanics
Polytitanates in the BaO‐TiO 2 system with Ba: Ti ratios ranging from 1:2 to 1:5 were prepared employing the liquid mix technique. The samples were heated at 600° to 1300°C in oxygen, and Raman spectroscopy was used to investigate the phase relations in the system. The powders of various compounds were amorphous at temperatures less than 600°C. They crystallized into a single phase or a mixture of phases at 700°C. These mixtures underwent further phase transformation at higher temperatures to form single‐phase compounds. Details of the procedure for sample preparation and characterization of the products are described. The results from the present study are compared with previously published data.