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Structural study of conventional and bulk metallic glasses during annealing
Pineda Soler, Eloi; Hidalgo, I.; Bruna Escuer, Pere; Pradell Cara, Trinitat; Labrador, Ana; Crespo Artiaga, Daniel
Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
Metallic glasses with conventional glass-forming ability (Al-Fe-Nd, Fe-Zr-B, Fe-B-Nb compositions) and bulk metallic glasses (Ca-Mg-Cu compositions) were studied by synchrotron X-ray diffraction during annealing throughout glass transition and crystallization temperatures. The analysis of the first diffraction peak position during the annealing process allowed us to follow the free volume change during relaxation and glass transition. The structure factor and the radial distribution function of the glasses were obtained from the X-ray measurements. The structural changes occurred during annealing are analyzed and discussed.
Àrees temàtiques de la UPC::Enginyeria dels materials
Amorphous semiconductors
Metallic glasses
Metals -- Quenching
Metals -- Rapid solidification processing
X-rays -- Diffraction
Amorphous materials
Metallic glasses
Rapid-solidification, quenching
Atomic scale structure
X-ray diffraction
Substàncies amorfes
Raigs X -- Difracció
Attribution-NonCommercial-NoDerivs 2.5 Spain
http://creativecommons.org/licenses/by-nc-nd/2.5/es/
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