The low temperature synthesis and characterization of Bi{sub 3.25}La{sub 0.75}Ti{sub 3}O{sub 12} powder by hydroxide coprecipitation in aqueous medium

Journal Article · Mon Oct 04 04:00:00 EDT 2004 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2004.06.005· OSTI ID:20883041

Gang, Xu ^[1]; Gaorong, Han ^[1]

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1. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 (China)

The fine powders of Bi{sub 3.25}La{sub 0.75}Ti{sub 3}O{sub 12} (BLT) were prepared by coprecipitaton method in aqueous medium at low temperature. The differential thermal analysis (DTA), thermo-gravimetric analysis (TG) and X-ray diffraction (XRD) were employed to evaluate the phase formation of BLT and TEM was used to characterize and observe the particle size and morphology of BLT powder obtained. The results show that the bismuth layer perovskite phase of BLT can begin to form at as low as 500 deg. C by the coprecipitation method. When the precipitates obtained were calcined at 600 deg. C for 2 h, the mono-phase and perfect BLT powder was synthesized. The BLT powder obtained consists of irregular or plate-like particles which are less than about 100 nm and is nearly aggregate free.

• OSTI ID: 20883041
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 12 Vol. 39; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH
COPRECIPITATION
DIFFERENTIAL THERMAL ANALYSIS
FERROELECTRIC MATERIALS
GRAVIMETRIC ANALYSIS
HYDROXIDES
MORPHOLOGY
PARTICLE SIZE
PEROVSKITE
POWDERS
SYNTHESIS
X-RAY DIFFRACTION