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cond-mat.mtrl-sci2025
Multi-modal strain mapping of steel crack tips with micrometer spatial resolution
Ahmar Khaliq, Felix Wittwer, Markus Hartmann +6
Due to their superior fatigue strength, martensitic steels are the material of choice for high cyclic loading applications such as coil springs. However, crack propagation is influ…
cond-mat.mtrl-sci2025
X-ray Strain and Stress Tensor Tomography
Peter Modregger, James. A. D. Ball, Felix Wittwer +2
The microscopic distribution of strain and stress plays a crucial role for the performance, safety, and lifetime of components in aeronautics, automotive and critical infrastructur…
cond-mat.mtrl-sci2024
Measurements of dislocations in 4H-SiC with rocking curve imaging
Ahmar Khaliq, Felix Wittwer, Niklas Pyrlik +9
4H Silicon Carbide (4H-SiC) combines many attractive properties such as a high carrier mobility, a wide bandgap, and a high thermal conductivity, making it an ideal candidate for h…