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Light emission during fracture of a Zr–Ti–Ni–Cu–Be bulk metallic glass
1999
Applied Physics Letters
A light emission phenomenon observed during dynamic fracture of a bulk metallic glass, Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 Be 22.5 ͑at. %͒, has been investigated using Charpy V-notch impact specimens. Unlike more conventional crystalline metals, these Zr-based amorphous alloys emit intense flashes of visible light when ruptured. The mechanisms for this surprising behavior are unknown and the phenomenon remains uncharacterized. Here we report spectroscopic measurements of the light emitted from
doi:10.1063/1.124187
fatcat:oru6nmdo2fgdnerlx63vzlsht4