MULTIPLE TWINS OF MONOCLINIC AL13FE4 SHOWING PSEUDO-ORTHORHOMBIC AND FIVEFOLD SYMMETRIES

Authors
MA XL LIEBERTZ H KOSTER U
Citation
Xl. Ma et al., MULTIPLE TWINS OF MONOCLINIC AL13FE4 SHOWING PSEUDO-ORTHORHOMBIC AND FIVEFOLD SYMMETRIES, Physica status solidi. a, Applied research, 158(2), 1996, pp. 359-367
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
158
Issue
2
Year of publication
1996
Pages
359 - 367
Database
ISI
SICI code
0031-8965(1996)158:2<359:MTOMAS>2.0.ZU;2-H
Abstract
Transmission electron microscopy (TEM) has been used to study the twin structures of monoclinic Al13Fe4 phase annealed at high temperature a s well as in the as-cast state. The main selected-area electron-diffra ction (SAED) patterns, which might imply an orthorhombic symmetry, hav e been explained to be from repeated (001) microtwins of monoclinic Al 13Fe4. The relationship between these microtwins and the high-temperat ure orthorhombic Al13Fe4 phase (Ellner 1995) is discussed. In addition , structural models for (100)-(20(1) over bar) fivefold twins are prop osed which are somewhat different from the previous one.