Preparation of BaTi4O9 ceramic powders via ethylenediaminetetraacetic acid precursor

BaTi4O9 ceramic powders were synthesised by a modified Pechini method using EDTA as a chelating agent. A light yellow, molecular-level, homogeneously mixed gel was prepared, and transferred into a porous resin intermediate through charring. The precursors and derived oxide powders were characterised...

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Bibliographic Details
Published in:Materials letters 2000-07, Vol.44 (6), p.370-373
Main Authors: Xu, Ye Bin, Chen, Xiang Ming, Wu, Yong Jun
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Powders
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Summary:BaTi4O9 ceramic powders were synthesised by a modified Pechini method using EDTA as a chelating agent. A light yellow, molecular-level, homogeneously mixed gel was prepared, and transferred into a porous resin intermediate through charring. The precursors and derived oxide powders were characterised by DTA, TG, and XRD. Single-phase and well-crystallised BaTi4O9 powders were obtained from pulverised resin at a temperature of 1200 C for 2 h. 9 refs.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(00)00061-6