TY - JOUR
T1 - Highly ordered structure of icosahedral quasicrystals in Zn-Mg-Re (Re = rare earth metals) systems
AU - Tsai, A. P.
AU - Niikura, A.
AU - Inoue, A.
AU - Masumoto, T.
AU - Nishida, Y.
AU - Tsuda, K.
AU - Tanaka, M.
PY - 1994/9
Y1 - 1994/9
N2 - A new group of stable icosahedral phases (i-phases) in the Zn-Mg-RE system were found to have an ideal composition close to Znso Mg42RE8 (RE = Y, Gd, Tb, Dy, Ho or Er). The new i-phases exhibit a highly ordered and nearly perfect face-centred icosahedral lattice as revealed by electron and X-ray diffraction and high-resolution electron microscopy. Powder X-ray diffraction indicates that the i-phase has long-range structural order with a correlation length over 1000 A, which is the largest found in the Frank-Kasper group. These new i-phases have the common valence concentration (about 2 08) and could be regarded as a new class of Hume-Rothery alloys.
AB - A new group of stable icosahedral phases (i-phases) in the Zn-Mg-RE system were found to have an ideal composition close to Znso Mg42RE8 (RE = Y, Gd, Tb, Dy, Ho or Er). The new i-phases exhibit a highly ordered and nearly perfect face-centred icosahedral lattice as revealed by electron and X-ray diffraction and high-resolution electron microscopy. Powder X-ray diffraction indicates that the i-phase has long-range structural order with a correlation length over 1000 A, which is the largest found in the Frank-Kasper group. These new i-phases have the common valence concentration (about 2 08) and could be regarded as a new class of Hume-Rothery alloys.
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U2 - 10.1080/09500839408240971
DO - 10.1080/09500839408240971
M3 - Article
AN - SCOPUS:84872413283
VL - 70
SP - 169
EP - 175
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
SN - 0950-0839
IS - 3
ER -