TY - JOUR
T1 - High-Resolution Electron Microscopy and Atomic Arrangements of Al-Mn-Si and Al-Li-Cu Icosahedral Quasicrystals
AU - Hiraga, Kenji
AU - Shindo, Daisuke
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - Two types of icosahedral quasicrystals of Al-Mn-Si and Al-Li-Cu were examined with a 400 kV high-resolution electron microscope having a resolution of 0.17 nm. Their images taken with the incident beam parallel to the fivefold symmetry axis clearly show a structure model formed by the aggregation of atom clusters with icosahedral symmetry. The observed image contrast of Al-Mn-Si was reproduced by an image calculation of the structure model using the multislice method. The calculation demonstrated that high-resolution images taken with the 400 kV electron microscope faithfully represent projected potential of the quasicrystals.
AB - Two types of icosahedral quasicrystals of Al-Mn-Si and Al-Li-Cu were examined with a 400 kV high-resolution electron microscope having a resolution of 0.17 nm. Their images taken with the incident beam parallel to the fivefold symmetry axis clearly show a structure model formed by the aggregation of atom clusters with icosahedral symmetry. The observed image contrast of Al-Mn-Si was reproduced by an image calculation of the structure model using the multislice method. The calculation demonstrated that high-resolution images taken with the 400 kV electron microscope faithfully represent projected potential of the quasicrystals.
KW - aluminum-lithium-copper
KW - aluminum-manganesesilicon
KW - high-resolution electron microscopy
KW - icosahedral quasicrystal
KW - quasicrystal
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U2 - 10.2320/matertrans1989.31.567
DO - 10.2320/matertrans1989.31.567
M3 - Article
AN - SCOPUS:0025456261
VL - 31
SP - 567
EP - 572
JO - Materials Transactions
JF - Materials Transactions
SN - 1345-9678
IS - 7
ER -