Filamentary Crystal Growth Associated with Impact Craters from Hypervelocity Microparticles

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Science  15 May 1970:
Vol. 168, Issue 3933, pp. 820-822
DOI: 10.1126/science.168.3933.820


A filamentary crystal growth is associated with impacts of hypervelocity microparticles upon copper foil. They are copper whiskers formed by the condensation of the target material vaporzied by the impact.