Ar+-ion-irradiation-induced phase transformation in an Al62Cu25.5Fe12.5 icosahedral quasicrystal
- 1. Beijing Univ. of Science and Technology (China)
- 2. Academia Sinica, Beijing, B.J. (China). Lab. of Electron Microscopy
- 3. China Centre of Advanced Science and Technology (World Lab.), Beijing (China)
- 4. Wuhan Univ. (China). Dept. of Physics
- 5. Academia Sinica, B.J. (China). Lab. of Electron Microscopy
Description
In this paper, the 120 keV Ar+-ion-irradiation-induced phase transformation from the Al62Cu25.5Fe12.5 icosahedral quasicrystal to B2(CsCl)-based phases has been studied by means of transmission electron microscopy. The dose dependence of the Ar+ ion irradiation effect and the subsequent in-situ heating and cooling behaviours after irradiation have been investigated. The experimental results show that the Ar+-irradiation-enhanced diffusion can accelerate the transformation from the icosahedral quasicrystal to a B2-type or B2-based phase at room temperature and that this B2 or B2-based phase transforms reversely to the icosahedral quasicrystal when the Ar+ dose is equal to or lower than 1014 Ar+ cm-2 and the temperature is increased to about 1000 K. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 5
- Journal Issue
- 41
- Journal Page Range
- p. 7569-7576.
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 25005499
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM BASE ALLOYS; ARGON IONS; ATOMIC DISPLACEMENTS; COPPER ALLOYS; CRYSTAL-PHASE TRANSFORMATIONS; DIFFUSION; ION BEAMS; IRON ALLOYS; KEV RANGE 100-1000; RADIATION DOSES; TRANSMISSION ELECTRON MICROSCOPY
- Descriptors DEC
- ALLOYS; ALUMINIUM ALLOYS; BEAMS; CHARGED PARTICLES; ELECTRON MICROSCOPY; ENERGY RANGE; IONS; KEV RANGE; MICROSCOPY; PHASE TRANSFORMATIONS; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS