Title: ULTRASONIC WAVE INTERACTIONS WITH COLLOIDAL MIXTURES

Abstract:
There is a long-established need to characterize solid/liquid and liquid/liquid suspensions in terms of suspended particle size distribution, dispersed phase concentration, and other factors such as the state of flocculation, the extent of soft network-like structures, and the propensity to change state. Ultrasonic spectroscopy can, in principle, be used for such characterization, and it has the advantage that ultrasound radiation can penetrate concentrated mixtures that are opaque to light. This paper will review the measurement techniques involved, the physics of acoustic interactions with colloids and its theoretical formulation, and some recent laboratory results.
(Ref. SXVIII-032-97)

Source: NDE of Ceramics '97 May 4-7, Symposium on Nondestructive Evaluation of Ceramics at the American Ceramic Society 99th Annual Meeting, Cincinnati, Ohio.
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