EXPERIMENTAL INVESTIGATIONS ON LIGHT-SCATTERING .9. LIGHT-SCATTERING OF FLOW ORIENTED NONSPHERICAL PARTICLES

被引：12

作者：

DOPPKE, H ^{[1
]}

HELLER, W ^{[1
]}

机构：

[1] WAYNE STATE UNIV,DEPT CHEM,DETROIT,MI 48202

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1979年 / 83卷 / 13期

关键词：

D O I：

10.1021/j100476a008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A brief description of the technique of flow light scattering measurements is followed by a discussion of the results obtained on practically monodisperse systems of nonspherical (rodlike) β-FeOOH crystals of colloidal size. Observations were made at constant θ = 90° varying systematically the equatorial angle ω′ and the shear rate. The results, in conjunction with the separately determined axial ratio of the crystals, were used in order to obtain numerical values for the crystal length and width. The analytical potential of the flow light scattering method for the dimensional characterization of monodisperse and heterodisperse nonspherical particles and for the detection and measurements of reversible and irreversible dimensional changes of these particles or their aggregates is outlined. The flow light scattering method is compared with that of flow birefringence. © 1979 American Chemical Society.

引用

页码：1717 / 1727

页数：11

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