National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC)
Type
Article
Source Title
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
ISSN
1468-6996
Year
2006
Volume
7
Issue
10
Open Access
gold
Publisher
NATL INST MATERIALS SCIENCE
DOI
10.1016/j.stam.2006.10.006
Format
PDF
Abstract
A novel method for synthesizing Na0.5Bi0.5TiO3 (BNT) anisotropic particles with grain orientation is reported. Anisotropically shaped particles of BNT were prepared by conversion of Na0.5B4.5Ti4O15 (NBT15) single crystals. Platelet NBT15 was produced by molten-salt synthesis. They were converted to BNT by second molten-salt synthesis at 800-1200 degrees C. NBT15 single-crystal platelets were transformed into platelet particles of polycrystalline BNT. The reaction is topotaxial, those recrystallized BNT were oriented with (h 0 0) plane parallel to the platelet. The use of converted BNT particles as seed was confirmed by performing templated grain growth (TGG) of BNT with 5% grain-oriented, anisotropic particles of BNT. (c) 2006 NIMS and Elsevier Ltd. All rights reserved.
