A Probabilistic Analysis of Propagation of Ultrasonic Waves in Metal Matrix Composite for the Measurement of Dispersed Particles.

The propagation of ultrasonic waves in ceramics-dispersed aluminum alloy composite was investigated for the purpose of developing a nondestructive method for inspecting ceramic particles. From the results of ultrasonic tests, the following important laws of ultrasonic waves were revealed. Propagation time decreases with an increase in SiC volume fraction; and (2) pulse width increases with an increase in SiC particle size. We studied these phenomena based on a probabilistic method, and derived formulas for the relationship between ultrasonic waves (propagation time and pulse width) and dispersed particles (volume fraction and mean size).