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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Silveira, Marta Gonzalez
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2018Evidence of thermal transport anisotropy in stable glasses of vapor deposited organic moleculescitations
- 2015Aging and structural relaxation of hyper-quenched Mg<inf>65</inf>Cu<inf>25</inf>Y<inf>10</inf> metallic glasscitations
- 2014Kinetics of silicide formation over a wide range of heating rates spanning six orders of magnitudecitations
- 2013Combinatorial method for direct measurements of the intrinsic hydrogen permeability of separation membrane materialscitations
- 2013Relaxation of rapidly quenched metallic glasses: Effect of the relaxation state on the slow low temperature dynamicscitations
- 2012Atomic-scale relaxation dynamics and aging in a metallic glass probed by X-ray photon correlation spectroscopy
- 2007Time resolved x-ray reflectivity study of interfacial reactions in Cu Mg thin films during heat treatmentcitations
- 2006Influence of layer microstructure on the double nucleation process in Cu/Mg multilayerscitations
- 2003Calorimetric and x-ray analysis of the intermediate phase formation in Cu/Mg multilayerscitations
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article
Relaxation of rapidly quenched metallic glasses: Effect of the relaxation state on the slow low temperature dynamics
Abstract
The relaxation spectrum of rapidly quenched Mg65Cu 25Y10 metallic glass ribbons is studied by mechanical spectroscopy at temperatures below and around the glass transition. The comparison between hyper-quenched and relaxed samples is used to examine the origin of the low temperature "excess wing" of internal friction commonly observed in mechanical spectroscopy of metallic glasses. The results show that the excess wing can be attributed to access of the system to the broad α-relaxation process while evidence of secondary relaxations is not found. This suggests that in this glassy system the activation energies of structural relaxation and low temperature deformation are directly related to the activation energy of the main relaxation process of the glassy state. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.