โ Scribed by T.R. Fletcher; J.A. Cornie; K.C. Russell
No coin nor oath required. For personal study only.
Monitoring the infiltration front position during the pressure infiltration of metal matrix composites provides information about the progress of infiltration as well as about the flow of liquid metal through the pre-form. A new non-invasive capacitance technique has been developed to observe the position of the infiltration front and is being used to study the low pressure infiltration of ceramic powders with liquid metals. The technique has been tested on a system of approximately 55% dense silicon carbide pre-forms infiltrated with tin. Asexpected, the technique gives results consistent with the infiltration distance being proportional to the square root of time.
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