In-Process Detection of Weld Defects Using Laser-Based Ultrasonic Lamb Waves

摘要

The research program of the Materials Response Group at Virginia Tech addressesthe need for reliable and durable ceramic composites to perform in hish temperature applications. Areas of current research are characterization of oxide/oxide hot gas filter tubes and dense Nextel/SiC tubes. The focus of this report will be on the characterization of the Nextel/SiC tubes.