Synthesis of Plate-Like SrTiO₃ Particles

Abstract:

Micro-scale plake-like SrTO3 particles were synthesized by two routes of topochemical conversion. One is by growing on Sr3Ti2O7 (S3T2) core particles in molten salt condition, and the other is from the layer-structured SrBi4Ti4O15 (SBT) precursor in a KCl medium. The effects of the morphology and size of the precursor to platelet SrTiO3 crystals were studied. X-ray diffraction analysis revealed that the crystallographic {010} plane of SBT was converted into the pseudo-cubic {001} plane of SrTiO3. The polycrystalline SrTiO3 particles from BST precursor exhibited a plate-like shape with 10-15μm in length and a high aspect ratio, and were more suitable for preparing textured ceramics by templated grain growth process than the platelets from the S3T2 precursors.

• Periodical: Materials Science Forum (Volumes 663-665)
• Pages: 1024-1027
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.663-665.1024
• Online since: November 2010
• Authors: Wei Zhao, Ruo Cai Pan, Hao Xue
• Keywords: Plate-Like, Templated Grain Growth, Topochemical

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