Nanoscale periodic morphologies on the fracture surface of brittle metallic glasses
G Wang, DQ Zhao, HY Bai, MX Pan, AL Xia, BS Han… - Physical review …, 2007 - APS
Physical review letters, 2007•APS
Out-of-plane, nanoscale periodic corrugations are observed in the dynamic fracture surface
of brittle bulk metallic glasses with fracture toughness approaching that of silica glasses. A
model based on the meniscus instability and plastic zone theory is used to explain such
dynamic crack instability. The results indicate that the local softening mechanism in the
fracture is an essential ingredient for controlling the formation of the unique corrugations,
and might provide a new insight into the origin of fracture surface roughening in brittle …
of brittle bulk metallic glasses with fracture toughness approaching that of silica glasses. A
model based on the meniscus instability and plastic zone theory is used to explain such
dynamic crack instability. The results indicate that the local softening mechanism in the
fracture is an essential ingredient for controlling the formation of the unique corrugations,
and might provide a new insight into the origin of fracture surface roughening in brittle …
Out-of-plane, nanoscale periodic corrugations are observed in the dynamic fracture surface of brittle bulk metallic glasses with fracture toughness approaching that of silica glasses. A model based on the meniscus instability and plastic zone theory is used to explain such dynamic crack instability. The results indicate that the local softening mechanism in the fracture is an essential ingredient for controlling the formation of the unique corrugations, and might provide a new insight into the origin of fracture surface roughening in brittle materials.
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