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https://hdl.handle.net/2445/10450
Title: | Vibrational behaviour of bcc Cu-based shape memory alloys close to the martensitic transition |
Author: | Planes Vila, Antoni Mañosa, Lluís Vives i Santa-Eulàlia, Eduard |
Keywords: | Matèria condensada Aliatges Transformacions martensítiques Condensed matter Alloys Martensitic transformations |
Issue Date: | 1996 |
Publisher: | The American Physical Society |
Abstract: | Experimental data from ultrasonic and inelastic neutron scattering measurements are analyzed for different families of Cu-based shape-memory alloys. It is shown that the transition occurs at a value, independent of composition and alloy family, of the ratio between the elastic constants associated with the two shears necessary to accomplish the lattice distortion from the bcc to the close-packed structure. The zone boundary frequency of the TA2[110] branch evaluated at the transition point (TM), weakly depends, for each family, on composition. A linear relationship between this frequency and the inverse of the elastic constant C', both quantities evaluated at TM, has been found, in agreement with the prediction of a Landau model proposed for martensitic transformations. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.53.3039 |
It is part of: | Physical Review B, 1996, vol. 53, núm. 6, p. 3039-3046 |
URI: | https://hdl.handle.net/2445/10450 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.53.3039 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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