Contact electrification by collision of homogenous particles

Contact electrification by collision of homogenous particles
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均质颗粒碰撞产生接触带电

DOI:
10.1063/1.4804331
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发表时间:
2013-05
影响因子:
3.2
通讯作者:
Zhoujun
Zhoujun
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Xie Li;Li Guixuan;Bao Nengneng;Zhoujun

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通过两粒子碰撞实验,研究了均匀粒子碰撞产生的接触带电现象,揭示了带电与两粒子直径比和相对碰撞速度的关系。然后,基于Grzybowski课题组的研究成果,分别建立了计算带电粒子单次碰撞和多次碰撞后净电荷的统计模型。该模型表明带电粒子所携带的净电荷取决于两个表面碰撞接触面积之差,并给出了与实验结果相一致的结果。
Contact electrification by collisions of homogenous particles is investigated by two-particle collision experiments, which reveals the relation between electrification and the diameter ratio and relative colliding velocity of the two particles. Then, based on researches reported by Grzybowski's research group, a statistical model to compute the net charge of electrified particle after a single collision and multiple collisions are established, respectively. The model shows the net charge carried by the electrified particles depends on the difference between the two surfaces’ areas involved in collision contact and gives results in good agreement with our experiment results.
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