The newly acquired AE measuring system AMSY-6 from Vallen Systeme GmbH was funded.

Acoustic emission (AE) monitoring is a powerful technique for structural health monitoring of components and in-situ microstructural analysis of complex materials.

Measured quantity: The newly acquired AE measuring system AMSY-6 (Vallen Systeme GmbH) can be used for constant measurement of acoustic waves or hit-based signal measurement with measuring frequency of up to 40 MS/s for different types of samples. The system is equipped with four high-frequency piezo electric sensors, as well as four parametric channels to record external sensors for simultaneous measurement of mechanical load, deformation, temperature, etc. This allows us to detect, localize and identify microstructural changes and related them to external conditions, such as the applied stress (eg, mechanical testing), temperature and atmosphere (eg, processing and in-field application).

Future possibilities: There is also the possibility to combine AE monitoring with other in-situ techniques for a robust microstructural characterization.

Thus, the new device will be vital for the flowing planned projects:

- Combination of AE monitoring, computer tomography and machine learning for in-situ microstructural analysis of multi-phase materials

- Crack detection in fiber-reinforced composites at extreme temperatures from cryogenic to up to 1200°C

- Evaluation of chemical reactions and mechanical deformation during fluid-rock interactions.

Applied by: Dr. Renato Almeida (Advanced Ceramics group)