HIGH-RESOLUTION ELECTRON-MICROSCOPIC STUDY OF ORDERING IN MONOCLINIC AU5MN2

被引：14

作者：

VANTENDELOO, G ^{[1
]}

AMELINCKX, S ^{[1
]}

机构：

[1] CEN SCK,B-2400 MOL,BELGIUM

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 51卷 / 01期

关键词：

D O I：

10.1002/pssa.2210510115

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ordering process of the monoclinic Au5Mn2 structure is investigated by means of high resolution electron microscopy. On quenching from the f.c.c. solid solution followed by annealing at 400 °C the tetragonal DO22 phase forms first; then a metastable long period superstructure with orthorhombic symmetry develops and finally the monoclinic Au5Mn2 nucleates along twin boundaries of this orthorhombic phase. These different stages can be recorded by dark field high resolution imaging, selecting all superlattice reflections of the [001] fcc* zone within a reciprocal lattice unit cell, excluding the basic reflections. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：141 / 150

页数：10

共 9 条

[1]

ANDERSSON S, 1964, ARK KEMI, V21, P413

[2] CRYSTALLOGRAPHIC SHEAR AND DIFFUSION PATHS IN CERTAIN HIGHER OXIDES OF NIOBIUM TUNGSTEN MOLYBDENUM AND TITANIUM [J].