Barium ion leaching from barium titanate powder in water
Journal of Materials Science: Materials in Electronics(2003)
摘要
A submicrometer-sized commercial BaTiO 3 (BT) powder was aged in water under three different conditions: pH, aging times, and pre-heat treatments of the powder. The amount of Ba 2+ ions leaching from the BT particles was determined by the EDTA titration method. As predicted by thermodynamic calculation, the greater extent and the faster rate of Ba 2+ leaching were found at the lower solution pH, leveling off at pH 8. The pre-heat treatments of the BT powder increased the amount of Ba 2+ leaching when compared to the as-received one. This result was shown by the formation of soluble surface BaCO 3 , which was detected using FT-IR spectroscopy. It was also shown that organic passivation agents were effective reducing the Ba 2+ leaching but at high solution pH.
更多查看译文
关键词
Barium,Leaching,BaTiO3,Thermodynamic Calculation,Titration Method
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要