Application of Laser AE to Microfracture at Elevated Temperature

Manabu Enoki; Satoshi Nishinoiri

doi:10.4028/www.scientific.net/AMR.13-14.283

Paper Titles

Determination of Damage Levels of Composite Plates after Low Velocity Impacts Using Acoustic Emission
p.253

Acoustic Emission Monitoring of Defects in Buckling CFRP Composite Panels
p.259

Acoustic Emission Testing of High-Pressure Composite Cylinders
p.267

Initial Studies for AE Characterisation of Damage in Composite Materials
p.273

Application of Laser AE to Microfracture at Elevated Temperature
p.283

Application of Acoustic Emission for Monitoring the HVOF Thermal Spraying Process
p.291

Acoustic Emission Monitoring during Solidification Processes
p.299

Dynamic Behavior of Two Types of Martensitic Transformations in Cu-Al-Ni Shape Memory Alloy Single Crystal by Acoustic Emission Method
p.305

Correlation between Acoustic Emission and Internal Friction in Materials
p.313

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 13-14Application of Laser AE to Microfracture at...

Application of Laser AE to Microfracture at Elevated Temperature

Abstract:

An AE measurement system that uses a laser interferometer has been developed to evaluate microfractures at elevated temperatures in various materials. This technique has the advantage that it can estimate the temperature where microfractures were generated. The results give useful information to control process conditions. AE during sintering ceramics and thermal spying of ceramic powder on metal substrates were successfully detected by this laser AE measurement system. Effect of process conditions on damage process was discussed from the detected AE behaviour during in-process monitoring.