Preferred Orientations in Compression Deformed and Annealed Polycrystalline C60

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  • Ito Kunio
    Department of Materials Science, Graduate School of Engineering, The University of Tokyo
  • Ogawa Keisuke
    Department of Materials Science, Graduate School of Engineering, The University of Tokyo
  • Ishida Yoichi
    Department of Materials Science, Graduate School of Engineering, The University of Tokyo

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  • Preferred Orientations in Compression D

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Deformation behaviour as well as recovery by annealing was examined by measuring preferred orientations and X-ray line profiles of aggregates of C60 crystals with two different sizes of several tens of micro- and nano-meters. The materials were deformed in compression to about 90% reduction in height within aluminium capsules and then annealed to 500°C. The (110) texture has developed in both of the specimens, suggesting that the deformation occurred mainly by {111}⟨110⟩ slip or by relative displacement between crystalline segments along the {111} planes even in the specimen of nanometer-sized crystals. The unchanged textures and lattice distortions after the annealing have led to the conclusion that the recrystallization does not occur, but some recovery is clearly observable.

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