Growth of Al-based quasicrystals and other complex metallic phases

Metallic–covalent bonding conversion and thermoelectric properties of Al-based icosahedral quasicrystals and approximants

In this article, we review the characteristic features of icosahedral cluster solids, metallic-covalent bonding conversion (MCBC), and the thermoelectric properties of Al-based icosahedral quasicrystals and approximants. MCBC is clearly distinguishable from and closely related to the well-known metal-insulator transition. This unique bonding conversion has been experimentally verified in 1/1-Al...

Properties- and applications of quasicrystals and complex metallic alloys.

This article aims at an account of what is known about the potential for applications of quasicrystals and related compounds, the so-called family of Complex Metallic Alloys (CMAs‡). Attention is focused at aluminium-based CMAs, which comprise a large number of crystalline compounds and quasicrystals made of aluminium alloyed with transition metals (like Fe or Cu) or normal metals like Mg. Depe...

Al-based Thin Film Quasicrystals and Approximants

Surfaces of Al-based complex metallic alloys: atomic structure, thin film growth and reactivity

We present a review on recent work performed on periodic complex metallic alloy (CMA) surfaces. The electronic and crystallographic structures of clean pseudo-tenfold, pseudo-twofold, sixfold surfaces will be presented along with the recent findings on CMA of lower structural complexity, i.e. with a smaller unit cell. The use of CMA surfaces as templates for thin film growth and the formation o...

Hydrogenation of Zr-based metallic glasses and quasicrystals

Zr-based metallic glasses and quasicrystals were electrochemically charged with hydrogen. Hydrogen absorption/ desorption as well as the in ̄uence of hydrogen on the formation and stability of quasicrystals were studied by means of X-ray di€raction, electron microscopy, di€erential scanning calorimetry (DSC) and thermal desorption analysis (TDA). In Zr69:5Cu12Ni11Al7:5 absorption kinetics and st...