Sanyal, M. K. ; Sahni, V. C. ; Dey, G. K. ; Banerjee, S. (1989) Crystallization and structural relaxation in quasicrystalline Al6CuMg4 Phase Transitions, 16 (1-4). pp. 383-387. ISSN 0141-1594
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0141159...
Related URL: http://dx.doi.org/10.1080/01411598908245711
Abstract
We report here electron microscopic, Differential Scanning Calorimetric (DSC) and X-ray diffraction studies on the phase transition in Al6CuMg4 alloy. Structural analysis of the transformed crystalline phase suggests that some of the lattice sites, which define the vertices of triacontahedron - the basic volume element of three dimensional Penrose tiling for this system - are fractionally occupied. We also observed that the specific heat of the as grown quasicrystalline alloy reduces gradually from 1.08 J/gm. K at 330 K to the Dulong Petit value 0.84 J/gm. K around 420 K, due to structural relaxation of the quasicrystalline phase.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Taylor & Francis Group. |
| Keywords: | Quasicrystal; Phase Transition; Structural Relaxations |
| ID Code: | 111482 |
| Deposited On: | 30 Nov 2017 11:57 |
| Last Modified: | 30 Nov 2017 11:57 |
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