TY - RPRT TI - Microstructural and Defect Characterization in Ceramic Composites Using an Ultrasonic Guided Wave Scan System AU - Roth, D. J. AU - Cosgriff, L. M. AU - Martin, R. E. AU - Verrilli, M. J. AU - Bhatt, R. T. PY - 2003 UR - https://ntrs.nasa.gov/citations/20030093551 ID - 20030093551 ER -