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Characterization of Barium Titanate Powders: Barium Carbonate Identification
Author(s) -
López Maria del Carmen Blanco,
Fourlaris Georgios,
Rand Brian,
Riley Frank L.
Publication year - 1999
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.1151-2916.1999.tb01999.x
Subject(s) - barium carbonate , x ray photoelectron spectroscopy , thermogravimetric analysis , barium titanate , barium , scanning electron microscope , fourier transform infrared spectroscopy , materials science , analytical chemistry (journal) , microanalysis , infrared spectroscopy , carbonate , mineralogy , nuclear chemistry , chemistry , chemical engineering , metallurgy , chromatography , ceramic , organic chemistry , composite material , engineering , raw material
A range of methods for the detection of barium carbonate contaminant in barium titanate powder has been assessed, namely: X‐ray diffraction (XRD), scanning electron microscopy (SEM), with EDS‐X‐ray microanalysis, Fourier transform infrared spectroscopy (FT‐IR), thermogravimetric analysis (TGA), gas chromatography (GC) for analysis of carbon, and X‐ray photoelectron spectroscopy (XPS). The most satisfactory procedure for the detection of the small amounts of BaCO 3 commonly present is FT‐IR. Surface analyses by XPS show that the carbonate is present as a discrete phase and is not a surface film on barium titanate particles.