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The need to measure the volume fraction of metal powder during the slurry casting synthesis of metal matrix composites has stimulated a new interest in ultrasonic propagation in metal powder-viscous liquid suspensions. Using model slurries, a systematic series of ultrasonic tests have been conducted to experimentally identify the frequency dependent(More)
Large differences in the ultrasonic velocity of the solid and liquid phases of semiconductors have stimulated an interest in the use of laser ultrasonic methods for locating and characterizing solid– liquid interfaces during single crystal growth. A previously developed two-dimensional ray tracing analysis has been generalized and used to investigate(More)
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