TY - JOUR
T1 - Crystal structure of a cubic (Formula presented) rational approximant structure for the Al-Zn-Mg icosahedral phase
AU - Sugiyama, K.
AU - Sun, W.
AU - Hiraga, K.
N1 - Funding Information:
This work has been financially supported by a Grant-in-Aid for Scientific Research (B) (No. 12450257) from the Japanese Society for the Promotion of Science.
PY - 2002/8/14
Y1 - 2002/8/14
N2 - The crystalline structure of a 2/1 cubic approximant phase Al17Zn37Mg46 (Pa3, a=23.1 Å) for the Al-Zn-Mg icosahedral phase has been determined by the single crystal X-ray diffraction. The structure of the present 2/1 approximant is characterized by the packing of Bergman clusters and the atomic arrangements for six successive shells are similar to those found in the 1/1 cubic approximant. However, the fourth rhombicosidodecahedral shell of the 2/1 cubic approximant indicates a rather distorted figure together with the chemical disorder. This reflects the unique packing motif of the Bergman clusters in the 2/1 cubic approximant.
AB - The crystalline structure of a 2/1 cubic approximant phase Al17Zn37Mg46 (Pa3, a=23.1 Å) for the Al-Zn-Mg icosahedral phase has been determined by the single crystal X-ray diffraction. The structure of the present 2/1 approximant is characterized by the packing of Bergman clusters and the atomic arrangements for six successive shells are similar to those found in the 1/1 cubic approximant. However, the fourth rhombicosidodecahedral shell of the 2/1 cubic approximant indicates a rather distorted figure together with the chemical disorder. This reflects the unique packing motif of the Bergman clusters in the 2/1 cubic approximant.
KW - Al-Mg-Zn
KW - Crystalline approximant
KW - Single-crystal X-ray diffraction
KW - Structural refinement
UR - http://www.scopus.com/inward/record.url?scp=0037077523&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037077523&partnerID=8YFLogxK
U2 - 10.1016/S0925-8388(02)00159-7
DO - 10.1016/S0925-8388(02)00159-7
M3 - Article
AN - SCOPUS:0037077523
SN - 0925-8388
VL - 342
SP - 139
EP - 142
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -