Frey, Friedrich; Hradil, K.
Periodic superorder and disorder of decagonal Al-Ni-Co and Al-Co-Cu(-Si) phases.
In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 74, Nr. 1: S. 45-55
Volltext auf 'Open Access LMU' nicht verfügbar.
Commensurate satellite reflections in diffraction patterns of decagonal Al-Ni-Co and Al-Cu-Co phases indicate a periodic superorder on the quasiperiodic substructure. From the intensity characteristics of these satellites a box-like modulation function is derived which may be visualized in different ways including approximant phases. An interpretation by fine-scale periodic lamella microdomains matches closely high-resolution electron microscopy observations and characteristic structural features of the average structure.