D3-a5 - Non-Destructive Evaluation and Defect Characterization of Ceramic Matrix Composites Using Laser Ultrasonics
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- D3-a - Laser Ultrasonics Applications in Industry and Aeronautics
- Author(s)
- R. Burger, D. Wu - University of Applied Sciences, Munich (Germany), C. U. Grosse - Technical University of Munich, Munich (Germany)
- Pages
- 263 - 266
- DOI
- 10.5162/Ultrasonic2025/D3-a5
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
Laser ultrasonic non-destructive testing was applied for the first time to oxide–oxide ceramic matrix composites. A fully optical setup generated and detected broadband ultrasound in both transmission and reflection modes. The measured shear wave velocity matched predictions within 5%, confirming reliable wave generation in the highly porous material. Although the current signal-to-noise ratio is modest, simple hardware upgrades could raise performance, positioning LU as a practical inline, non-contact quality-control tool for oxide–oxide CMCs.