Processing and Morphology of (111) BaTiO3 Crystal Platelets by a Two-Step Molten Salt Method

作者：Lv, Danya; Zuo, Ruzhong^*; Su, Shi

来源：Journal of the American Ceramic Society, 2012, 95(6): 1838-1842.

DOI：10.1111/j.1551-2916.2012.05124.x

• Batio
• High aspect ratio
• Soaking temperature
• Stoichiometric compositions
• Synthesis method
• Tetragonal perovskites
• Two-step molten salts

The (111) oriented plate-like BaTiO3 (BT) particles with a tetragonal perovskite structure and a stoichiometric composition were successfully synthesized by a two-step molten-salt synthesis method (MSS). The as-synthesized BT particles preserved the plate-like shape of precursor Ba6Ti17O40 (B6T17) particles with (001) major crystalline face, and, however, had a preferred pseudo-cubic (111) orientation. BT particle with a high aspect ratio (1020 mu m in diameter and <1.5 mu m in thickness) was achieved as the soaking temperature and time were optimized to be 1170 degrees C and 5 h, respectively. Oriented particulate layer X-ray diffraction analysis revealed that the crystallographic (001) plane of B6T17 has a topotactic relation with the (111) plane of BT particles.

• 出版日期2012-6
• 单位合肥工业大学