Title: ADVANCES IN NDE FOR THE PLASTIC SHAPING OF CERAMIC POWDER SUSPENSIONS

Abstract:
Although significant, recent advances have been made in the synthesis of ultrafine, nonclay ceramic powders, experience indicates that, in comparison to clays, these powders require much more stringent control of packing-structure heterogeneities in order to prevent drying- and sintering cracks. NDE methods, coupled with fluid- and soil-mechanics modelling, are needed that provide a better fundamental understanding of the role of critical processing variables on the evolution of green microstructures forming from a colloidal suspension. This paper reviews recent advances in this area, with an emphasis on ultrasonic- and radiographic studies; linking green-microstructure development with colloidal processing variables.
(Ref. SXVIII-007-97)

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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