Plate Impact Test of Carbon Composite Material Impregnated with Si

Plate impact tests were carried out on the new composites, which are carbon composite material impregnated with Si and carbon fiber carbon composites. The composite specimens have different orientation, 0°, 45°, 90°, to the impact plane. The spall damage within the target plate was nondestructively detected from the change in the received waves with a digital ultrasonic measurement system. The spall strength of the composites is higher for the large fiber orientation angle.