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Understand anisotropy dependence of damage evolution and material removal during nanoscratch of MgF2 single crystals (IMAGE)
The tensile stress during unloading might cause cleavage fracture of the MgF2 single crystal, inducing the initiation of radial cracks on the workpiece surface. Disclaimer: AAAS and EurekAlert!
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How Nanoindentation Advances Fracture Toughness Testing
The developed models rely on directly measuring radial cracks that form at the edge of sharp Vickers (Berkovich) or cube corner indentation marks. Various fragile materials were examined in this ...