Experimental Characterization of Chain-Aggregate Aerosol by Electrooptic Scattering
作者： M. T. Cheng , G. W. Xie , M. Yang , D. T. Shaw
DOI: 10.1080/02786829108959472
关键词: Electron scattering 、 Aerosol 、 Rotational diffusion 、 Molecular physics 、 Electric field 、 Light scattering 、 Particle size 、 Analytical chemistry 、 Chemistry 、 Particle 、 Scattering
摘要: A technique combining the electric field-induced alignment and transient light scattering was applied to characterize Fe2O3 chain-aggregate aerosols. Particles were exposed a pulsed square field with strengths up 2.S kV/cm. Rotational diffusion constants of particles obtained from decay rate relative change in intensity due orientation after removal field. Using model for rodlike aerosols, average particle length electrooptic data compared electron microscope analysis aggregates sampled an aerosol centrifuge. The good agreement results two independent methods demonstrates applicability in-situ measurement fibrous
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