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IJPAP Vol.46 [2008] >
IJPAP Vol.46(07) [July 2008] >
| Title: | Stability and phase transition in Al₆₅Cu₂₀Co₁₅₋xFex (0≤x≤15) quasi-crystalline systems |
| Authors: | Singh, K
Bahadur, D |
| Keywords: | Quasicrystals
X-ray diffraction
Differential thermal analysis
Fermi wave vector |
| Issue Date: | Jul-2008 |
| Publisher: | CSIR |
| Abstract: | The samples Al₆₅Cu₂₀Co₁₅₋xFex (0≤x≤15), Al₆₃Cu₂₅Fe₁₂ and Al60Cu₂₀Fe₁₅Si₅ have been synthesized. Their stability and formed phases are investigated using differential thermal analysis (DTA) and X-ray diffraction (XRD), respectively. The maximum stability in alloys is found when the Fermi wave vector, kF satisfies the relation KP = 2kF. Apart from this, specific range of e/a (electron per atom) and atomic size ratio of constituents also play an important role in forming the thermodynamically stable quasicrystals. |
| Page(s): | 497-501 |
| ISSN: | 0019-5596 |
| Source: | IJPAP Vol.46(07) [July 2008]
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