A New Kind of Structural State for the Al-Ni-Ru Decagonal Quasicrystal with 0.4 nm Periodicity
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概要
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An Al-Ni-Ru decagonal quasicrystal with 0.4 nm periodicity, which has a good long-range basic quasiperiodic order, was observed to form in rapidly solidified Al-Ni-Ru alloys. Its structure has been studied by means of high-resolution electron microscopy and high-angle annular detector dark-field techniques, and compared with that of a superlattice Al-Ni-Ru decagonal quasicrystal formed by conventional solidification. The results reveal that the rapidly solidified Al-Ni-Ru decagonal quasicrystal with 0.4 nm periodicity has a new basic structural state which is characterized by a mixture of 2 nm atomic columnar clusters with and without pentagonal symmetry.
- 社団法人日本物理学会の論文
- 2002-02-15
著者
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SUN Wei
Institute for Materials Research, Tohoku University
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Hiraga Kenji
Institute For Materials Research
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Sun Wei
Institute For Materials Research Tohoku University
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