钛酸钡纳米颗粒球阵列的制备及其介电性能。
Preparation of barium titanate nanoparticle sphere arrays and their dielectric properties.
作者信息
Wada Satoshi, Yazawa Aki, Hoshina Takuya, Kameshima Yoshikazu, Kakemoto Hirofumi, Tsurumi Takaaki, Kuroiwa Yoshihiro
机构信息
Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8510, Japan.
出版信息
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Sep;55(9):1895-9. doi: 10.1109/TUFFC.880.
Barium titanate (BaTiO(3)) nanoparticles from 27 to 192 nm were prepared by the 2-step thermal decomposition method from barium titanyl oxalate nanoparticles. These particles were dispersed well into 1-propanol, and dense BaTiO(3); nanoparticle sphere arrays without stress-field were prepared by the meniscus method. Temperature dependence of dielectric properties was successfully measured using these dense nanoparticle sphere arrays, and size effect on dielectric properties was discussed.
通过两步热分解法，以草酸氧钛钡纳米颗粒为原料制备了粒径在27至192纳米之间的钛酸钡（BaTiO₃）纳米颗粒。这些颗粒能很好地分散在1-丙醇中，采用弯月面法制备了无应力场的致密BaTiO₃纳米颗粒球阵列。利用这些致密的纳米颗粒球阵列成功测量了介电性能的温度依赖性，并讨论了尺寸对介电性能的影响。
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