Nano Atom Clusters and Their Long-Range Quasiperiodic Arrangements in Al-Ni-Ru Decagonal Quasicrystal

Abstract:

The structural features of nano-sized atom clusters and their long-rang arrangement in the Al-Ni-Ru decagonal quasicrystal with 1.6 nm periodicity have been studied and compared with those in the Al-Pd-Mn decagonal quasicrystal on the basis of electron microscopy. From the perpendicular-space analysis of the tiling obtained in a wide region, we conclude that long-range arrangement of atom clusters in the Al-Ni-Ru decagonal quasicrystal with 1.6 nm periodicity can form a Penrose-tiling-like quasiperiodic structure which is almost free of linear phase strain. In contrast, the tiling structure of the Al-Pd-Mn decagonal quasicrystal contains heavy phason strain. Our results clearly show that atom clusters formed in the Al-Ni-Ru decagonal quasicrystals and their linkage manner are completely different from those in the Al-Pd-Mn decagonal quasicrystal.

• Periodical: Materials Science Forum (Volumes 475-479)
• Pages: 3351-3354
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.475-479.3351
• Online since: January 2005
• Authors: Wei Sun, Ze Zhang, Kenji Hirage
• Keywords: Atom Cluster, Decagonal Quasicrystal, Electron Microscopy, Quasiperiodic Arrangement

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