Sektion Kristallographie

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Neutron and X-ray investigation of disordered quasicrystals

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 294: 303-307

Autoren/Herausgeber: Hradil K
Scholpp T
Frey F
Haibach T
Estermann MA
Capitan M
Erschienen: 2000

Disorder in decagonal quasicrystals is studied by "contrasting methods", i.e. by joint analysis of X-ray and neutron data and by use of the anomalous dispersion method, to learn about the relative influence of the transition metals. First experimental results with decagonal Al-Ni-Co samples of different origin are discussed qualitatively. A comparative study of Patterson maps from neutron and X-ray Bragg data of d-Al72.5Ni16.5Co11 gives direct evidence for particular sites occupied by Co. (C) 2000 Elsevier Science B.V. All rights reserved.