Presentation
The Stability of Icosahedral Cd-Yb
Ames Laboratory Conference Papers, Posters, and Presentations
Document Type
Conference Proceeding
Conference
Symposium LL - Quasicrystals
Publication Date
1-1-2003
DOI
10.1557/PROC-805-LL1.8
Geolocation
(40.65320759999999, -80.07949250000001)
Abstract
The stability of single-crystalline icosahedral Cd-Yb was investigated using X-ray diffraction methods in the temperature range 20 K ≤ T ≤ 900 K at ambient pressure and from ambient temperature to 873 K at about 9 GPa. Single-crystals remain stable at low temperatures and in the investigated HP-HT-regime. At high temperatures and ambient pressure, the quasicrystal decomposes. The application of mechanical stress at low temperatures yields to the same decomposition, the formation of Cd. A reaction of icosahedral Cd-Yb with traces of oxygen or water causing the decomposition seems reasonable, but a low-temperature instability of this binary quasi-crystal cannot be ruled out totally.
Copyright Owner
Materials Research Society
Copyright Date
2004
Language
en
Citation Information
Günter Krauss, Sofia Deloudi, Andrea Steiner, Walter Steurer, et al.. "The Stability of Icosahedral Cd-Yb" Warrendale, PA(2003) Available at: http://works.bepress.com/thomas_lograsso/171/
This article is from MRS Proceedings 805 (2003): LL1.8, doi:10.1557/PROC-805-LL1.8