Study on Preparation of Uniform Volume Particles using Ultrasonic-wave as Shape-controlled Materials.

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  • 形態制御材料としての超音波による体積が一定な粒子の合成システムを目的とした研究
  • ケイタイ セイギョ ザイリョウ ト シテ ノ チョウオンパ ニ ヨル タイセキ ガ イッテイ ナ リュウシ ノ ゴウセイ システム オ モクテキ ト シタ ケンキュウ

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Abstract

The production method for uniform droplets has been investigated usingultrasonic-wave. The ultrasonic-wave was loaded to the fluid, which was fed by a double plunger pump and was spouted out from the nozzle. This studywas attempted that the uniform droplets are prepared by controlling theflow velocity and the diameter of nozzle. The diameter of the nozzles was 30 ∼ 100 μm and the frequency of the ultrasonic-wave was adopted to be 33.55 kHz. The synchronized flash was applied in order to take photograph in which the uniform particle could be observed. The accumulated particles were taken some conditions. It was suggested that this method was useful to prepare uniform particles in the industrial field. The flow velocity was found to be one of the important factors to regulate the particle diameter. The distance between particles did not depend on the flow velocity without ultrasonic loading but it linearly depended on the flow velocity with ultrasonic loading. This "ultrasonic" method is believed to be one of the most promising routes to obtain the perfectly uniform particle.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 115 (2), 111-116, 1999

    The Mining and Materials Processing Institute of Japan

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