Structural investigation of stable quasicrystals

High-resolution transmission electron microscopy in combination with further electron microscopy techniques is employed for the structural characterisation of quasicrystalline alloys such als icosahedral and decagonal Al-Mn-Pd as well as decagonal Al-Co-Ni. These investigations are in collaboration with several research groups especially with Dr. R. Lück at the Max Planck Institute for Metals Research in Stuttgart, Germany, and Dr. S. Ritsch at the Institute for Materials Research of Tohoku University, Sendai, Japan.


For a list of my work in this field please see: Publications on Quasicrystals

Summary of typical electron diffraction patterns of the different variants observed in decagonal Al-Co-Ni quasicrystals

All eight diffraction patterns are shown in the same scale: Along the central horizontal axis, the two strongest diffraction spots correspond to a d-value of 0.236 nm. These two spots are part of the ring of the ten strongest reflections with the same d-value.




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    Last modified: December 11, 2001, sts