THE DETERMINATION OF DYNAMIC MODULI AT HIGH-FREQUENCIES

被引：15
|
作者：
WILLIAMS, PR
WILLIAMS, DJA
机构：
[1] Department of Chemical Engineering, University College of Swansea, Swansea, SA2 8PP, Singleton Park
来源：
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1992年 / 42卷 / 03期
关键词：
COLLOIDAL DISPERSIONS; HIGH FREQUENCIES; SHEAR WAVES;
D O I：
10.1016/0377-0257(92)87013-2
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A new technique for the measurement of dynamic moduli at high frequencies is presented, based upon the properties of a virtual gap formed by two unequal shear wave path lengths. Measuring procedures and underlying theory are presented which overcome many of the difficulties inherent in the high-frequency rheometry of concentrated dispersions. Use of the technique is illustrated with results obtained on dispersions of a commercially available model clay colloid.
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页码：267 / 282
页数：16
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