Characterization of sphericity and wall thickness uniformity of thick-walled hollow microspheres

Liu Meifang; Chen Sufen; Liu Yiyang; Su Lin; Shi Ruiting; Qi Xiaobo; Li Bo; Zhang Zhanwen

doi:10.3788/HPLPB201426.022017

Volume 26 Issue 02

Jan. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(02): 022017

Ye Xin, Huang Jin, Zhou Xinda, et al. Film-formation trend and film coverage percentage of continuous convective self-assembling of 2D colloidal crystals[J]. High Power Laser and Particle Beams, 2012, 24: 1831-1835. doi: 10.3788/HPLPB20122408.1831

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Liu Meifang, Chen Sufen, Liu Yiyang, et al. Characterization of sphericity and wall thickness uniformity of thick-walled hollow microspheres[J]. High Power Laser and Particle Beams, 2014, 26: 022017. doi: 10.3788/HPLPB201426.022017

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Characterization of sphericity and wall thickness uniformity of thick-walled hollow microspheres

doi: 10.3788/HPLPB201426.022017

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China

Received Date: 2013-08-27
Rev Recd Date: 2013-11-13
Publish Date: 2014-02-15

Abstract

Abstract

To characterize the sphericity and the wall thickness uniformity, thick-walled polystyrene (PS) hollow microspheres with inner diameter of 850 m and wall thickness of 25 m were measured by the VMR microscope system, and the effects of sampling methods on the sphericity and the wall thickness uniformity were investigated. For the characterization of a batch of hollow microspheres, the experimental results showed very slight difference when the sample number was no less than 30. For a single hollow microsphere, the average results became stable when the times of the projection torus were at least 3. Therefore, the sample number should be no less than 30 to characterize a batch of hollow microspheres. Moreover, for hollow microspheres with poor wall thickness uniformity or poor sphericity, taking advantage of more than one projection torus benefits improving the reliability of the results.
- thick-walled hollow microspheres,
- sphericity,
- wall thickness uniformity,
- sample number,
- projection torus times

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