Journal
JOURNAL OF ELECTROCERAMICS
Volume 21, Issue 1-4, Pages 810-814Publisher
SPRINGER
DOI: 10.1007/s10832-007-9302-4
Keywords
Hydrothermal process; X-ray methods; Niobates; Microwave dielectric ceramics
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Ba5Nb4O15 powders were prepared by a hydrothermal process, in which Ba(NO3)(2), BaCl2, Ba(OH)(2) were used as Ba-precursors. The effect of Ba-precursor on the particle size, shape and structures was examined by XRD and SEM analyses. The influences of reaction time on reaction conversions for Nb2O5 and particle size were discussed. The till degree and the concentration of precursors affected the products morphology, and the particle size increased with increasing the fill degree.
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