Development of Ultrasound Exposure System of Four Piezoelectric Ceramic Vibrators with Operating Frequency of 150 kHz for Dispersion of Nanometer-Sized Diamond Particles
Development of Ultrasound Exposure System of Four Piezoelectric Ceramic Vibrators with Operating Frequency of 150 kHz for Dispersion of Nanometer-Sized Diamond Particles
复制标题
工作频率为 150 kHz 的四压电陶瓷振动器超声曝光系统的开发，用于分散纳米级金刚石颗粒
DOI：
10.1143/jjap.47.4115
复制
发表时间：
2008
影响因子：
1.5
通讯作者：
S. Takeuchi
中科院分区：
文献类型：
--
作者：
T. Uchida;T. Kikuchi;S. Isa;N. Kawashima;S. Takeuchi
研制了一种用于纳米金刚石颗粒分散的超声辐照系统。纳米级金刚石颗粒具有约5nm的初级粒度，并且预期在未来用作研磨剂。然而，金刚石颗粒在制造后立即聚集到约5 μm的尺寸，并且硬盘表面被这种聚集的金刚石颗粒划伤。重要的是金刚石颗粒均匀地分散在水中。因此，分散的金刚石颗粒使用超声曝光系统与四个铅钛锆酸盐（PZT）压电陶瓷振子和声学匹配层进行了研究。结果，金刚石颗粒通过由于超声波暴露引起的声空化而分散至约75 nm的粒度。
A novel ultrasound exposure system for the dispersion of nanometer-sized diamond particles was developed. The nanometer-sized diamond particles have a primary particle size of about 5 nm and are expected to be used as an abrasive agent in the future. However, the diamond particles are aggregated to a size of about 5 µm immediately after manufacture, and a hard disk surface is scratched by such aggregated diamond particles. It is important that the diamond particles are uniformly dispersed in water. Therefore, the dispersion of the diamond particles using an ultrasound exposure system with four lead titanium zirconate (PZT) piezoelectric ceramic vibrators and an acoustic matching layer was investigated. As a result, the diamond particles were dispersed to a particle size of about 75 nm by acoustic cavitation due to ultrasound exposure.
通过声空化、超声波改善纳米级金刚石颗粒的分散
DOI：
--
发表时间：
2006
期刊：
Ultrasonics 44
影响因子：
--
作者：
金子いづみ;金子いづみ;金子いづみ;Takeyoshi Uchida;Takeyoshi Uchida
通讯作者：
Takeyoshi Uchida
通过声化学反应改善纳米金刚石的分散性-声学强度、解聚和表面改性之间的关系-
DOI：
--
发表时间：
2005
期刊：
Japanese Journal of Applied Physics 44・6B
影响因子：
--
作者：
金子いづみ;金子いづみ;金子いづみ;Takeyoshi Uchida;Takeyoshi Uchida;Takeyoshi Uchida;内田武吉;内田武吉;内田武吉;内田武吉
通讯作者：
内田武吉