Abstract
The extent of ultrasonic cavitation forces on suspended particles was characterized by comparison to hollow glass bubble strength distributions obtained via mercury porosimetry. The effective breaking strength of the different energy input levels of the ultrasonic disruptor were found to vary between 1.1 and 80.5 MPa. Model ordered monosize silica sphere agglomerates were ultrasonically treated and the changes in the particle size distribution followed in order to determine the strength of these agglomerates. Similar analyses done on synthesized titania powders have shown the importance of drying and ethanol washing of precursor precipitates to the strength of the final oxide agglomerates.
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