Materials: Carbon nanotubes in an ancient Damascus sabre

  title={Materials: Carbon nanotubes in an ancient Damascus sabre},
  author={Marianne Reibold and Peter Paufler and Aleksandr A. Levin and Werner Prof Dr Kochmann and N. P{\"a}tzke and Dirk C. Meyer},
The steel of Damascus blades, which were first encountered by the Crusaders when fighting against Muslims, had features not found in European steels — a characteristic wavy banding pattern known as damask, extraordinary mechanical properties, and an exceptionally sharp cutting edge. Here we use high-resolution transmission electron microscopy to examine a sample of Damascus sabre steel from the seventeenth century and find that it contains carbon nanotubes as well as cementite nanowires. This… 
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