Structural study of conventional and bulk metallic glasses during annealing
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...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/1326 |
| Acceso en línea: | https://hdl.handle.net/2117/1326 |
| Access Level: | acceso abierto |
| Palabra clave: | Amorphous semiconductors Metallic glasses Metals -- Quenching Metals -- Rapid solidification processing X-rays -- Diffraction Amorphous materials Rapid-solidification, quenching Atomic scale structure X-ray diffraction Substàncies amorfes Raigs X -- Difracció Àrees temàtiques de la UPC::Enginyeria dels materials |
| Sumario: | 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. |
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