Synthesis of Calcium Chloroborate Whiskers Via Sedimentation and Sintering Process
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2017年第5期
论文作者：朱东海 NAI Xueying 兰生杰 DANG Li LIU Xin 李武
文章页码：1067 - 1071
摘 要：Single crystalline calcium chloroborate（Ca2B5O9Cl） whiskers with uniform diameter have been fabricated by a two-step process. The precursor was firstly prepared by the sedimentation reaction between CaCl2, H3BO3 and Na OH aqueous solutions, and then sintered at different temperatures for 6 h with KCl as flux. The XRD indicates that the product synthesized at 600 °C is Orthorhombic Ca2B5O9Cl. SEM and TEM results show that the Ca2B5O9Cl is whisker with the diameter about 0.2-0.5 μm and the length up to 15 μm. SAED analysis shows that the whisker is single crystalline and grows along [001] direction. The possible formation process and growth mechanism were proposed.
朱东海1,2，NAI Xueying2，兰生杰1,3，DANG Li1,3，LIU Xin2，李武2
1. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University2. Qinghai Institute of Salt Lakes,Chinese Academy of Sciences3. School of Chemical Engineering, Qinghai University
摘 要：Single crystalline calcium chloroborate（Ca2B5O9Cl） whiskers with uniform diameter have been fabricated by a two-step process. The precursor was firstly prepared by the sedimentation reaction between CaCl2, H3BO3 and Na OH aqueous solutions, and then sintered at different temperatures for 6 h with KCl as flux. The XRD indicates that the product synthesized at 600 °C is Orthorhombic Ca2B5O9Cl. SEM and TEM results show that the Ca2B5O9Cl is whisker with the diameter about 0.2-0.5 μm and the length up to 15 μm. SAED analysis shows that the whisker is single crystalline and grows along [001] direction. The possible formation process and growth mechanism were proposed.
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