Development of Ultrasound Exposure System of Four Piezoelectric Ceramic Vibrators with Operating Frequency of 150 kHz for Dispersion of Nanometer-Sized Diamond Particles
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概要
- 論文の詳細を見る
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.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-05-25
著者
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Kawashima Norimichi
Faculty Of Biomedical Engineering Toin University Of Yokohama
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Uchida Takeyoshi
Acoustics and Ultrasonics Section, National Metrology Institute of Japan (NMIJ), National Institute
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Kikuchi Tsuneo
Acoustics And Ultrasonics Section National Metrology Inst. Of Japan (nmij) National Inst. Of Advance
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Kikuchi Tsuneo
Acoustics and Ultrasonics Section, Acoustics and Vibration Metrology Division, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-85
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Takeuchi Shinichi
Faculty of Biomedical Engineering, Toin University of Yokohama, 1614 Kurogane-cho, Aoba-ku, Yokohama 225-8502, Japan
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Isa Shintaro
Faculty of Biomedical Engineering, Toin University of Yokohama, 1614 Kurogane-cho, Aoba-ku, Yokohama 225-8502, Japan
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Uchida Takeyoshi
Acoustics and Ultrasonics Section, Acoustics and Vibration Metrology Division, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-85
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Uchida Takeyoshi
Acoustics and Ultrasonics Section, Acoustics and Vibration Metrology Division, National Metrology Institute of Japan (NMIJ), Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
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- Development of Ultrasound Exposure System of Four Piezoelectric Ceramic Vibrators with Operating Frequency of 150 kHz for Dispersion of Nanometer-Sized Diamond Particles
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