Abstract
Diffuse layers corresponding to an 8 Å superperiod along the 'periodic' axis of decagonal Al-Ni-Co phases were investigated by in situ X-ray and neutron diffraction at temperatures up to 980 °C. The diffuse layers consist of an unstructured diffuse background, diffuse bands, and diffuse maxima which (almost) all vanish above 900 °C, but show a different temperature dependence in detail. A tentative scenario of the related structural ordering process during cooling from high temperature is developed. A 1D-columnar cluster model is compared to the experimental results.
Original language | English |
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Pages (from-to) | 57-64 |
Number of pages | 8 |
Journal | Journal of Alloys and Compounds |
Volume | 342 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2002 Aug 14 |
Externally published | Yes |
Keywords
- Decagonal quasicrystal
- Diffuse layers
- High temperature
- Neutron diffraction
- Periodic superstructure
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry