PARTIAL PAIR DISTRIBUTION-FUNCTIONS IN ICOSAHEDRAL AL-MN STUDIED BY CONTRAST VARIATION IN NEUTRON-DIFFRACTION

被引：28

作者：

DUBOIS, JM ^{[1
]}

JANOT, C ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL DE PHYSIQUE | 1987年 / 48卷 / 11期

关键词：

NEUTRONS; -; Diffraction;

D O I：

10.1051/jphys:0198700480110198100

中图分类号：

学科分类号：

摘要：

Icosahedral Al-Mn and Al-(MnFeCr) alloys were studied by neutron diffraction with scattering vectors up to 16 A** minus **1. The three partial pair distribution functions (PPDF) were obtained and the actual isomorphous substitution of the sigma FeCr mixture for Mn was confirmed. The PPDF for Mn-Mn indicates the existence of a manganese subnetwork rather similar to that found in the alpha (AlMnSi) crystalline phase. In particular the shortest Mn-Mn distances were found at 4. 47 and 4. 97 A.

引用

页码：1981 / 1989

页数：9

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