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Dr. K. Lu Group >> Research Highlight
Superplastic extensibility of nanostructured Cu at room temperature
  • Abstract
      A bulk nanocrystalline (nc) pure copper with high purity and high density was synthesized by electrodeposition, An extreme extensibility (elongation exceeds 5000%) without a strain hardening effect was observed when the ne copper specimen was rolled at room temperature. Microstructure analysis suggests that the superplastic extensibility of the ne copper originates from a deformation mechanism dominated by grain boundary activities rather than Lattice dislocation, which is also supported by tensile creep studies at room temperature. This behavior demonstrates new possibilities for scientific and technological advancements with ne materials.
  • Paper Published
      Superplastic extensibility of nanocrystalline copper at room temperature. Science, 287 (2000) 1463-1466. [ Full Text ]
    Last modified: 2003/11/27
    Links:
    Revealing the Maximum Strength in Nanotwinned Copper
    Ultrahigh Strength and High Electrical Conductivity in Copper
    Melting mechanisms at the limit of superheating
    Nitriding Iron at Lower Temperatures
    Superplastic extensibility of nanostructured Cu at room temperature
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    Dr. K. Lu Group, Institute of Metal Research, Chinese Academy of Sciences.
    Address: 72 Wenhua Road, Shenyang, 110016, China