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The Thermal Explosion Synthesis of AlNi Monitored by Neutron Thermodiffractometry
Citation
Turrillas Maisterra, Javier Miguel and Mas-Guindal, M.J. and Hansen, T.C. and Rodríguez, M.A. (2010). The Thermal Explosion Synthesis of AlNi Monitored by Neutron Thermodiffractometry. "Acta Materialia", v. 58 (n. 7); pp. 2769-2777. ISSN 1359-6454. https://doi.org/10.1016/j.actamat.2010.01.013.
Description
| Title: | The Thermal Explosion Synthesis of AlNi Monitored by Neutron Thermodiffractometry |
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| Author/s: |
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| Item Type: | Article |
| Título de Revista/Publicación: | Acta Materialia |
| Date: | January 2010 |
| ISSN: | 1359-6454 |
| Volume: | 58 |
| Subjects: | |
| Freetext Keywords: | Nickel aluminides; Neutron diffraction; Nucleation and growth; Thermodiffraction |
| Faculty: | Centro de Seguridad y Durabilidad Estructural de Materiales (CISDEM) (UPM) |
| Department: | Otro |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
The synthesis of AlNi from thermally activated equimolar powder mixtures of aluminium and nickel was monitored in situ and acquired diffraction patterns every 2 s or less. The analysis of diffraction patterns permitted establishment of its kinetics, which could be modeled according to an equation expressed as kt=[α/(1-α)]3/2. From 1530 to an activation energy of 9 ± 2 kJ mol−1 was estimated. Also, the crystallite size evolution on cooling was established to vary from ≈14 nm at 1530 °C to ≈28 nm at 180 °C. Finally, the reaction was found to occur through the melting of aluminium and the subsequent dissolving of nickel to form the polycrystalline single-phase product, AlNi.
More information
| Item ID: | 8754 |
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| DC Identifier: | https://oa.upm.es/8754/ |
| OAI Identifier: | oai:oa.upm.es:8754 |
| DOI: | 10.1016/j.actamat.2010.01.013 |
| Official URL: | http://www.sciencedirect.com/science/article/pii/S1359645410000273 |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 29 Sep 2011 11:02 |
| Last Modified: | 20 Apr 2016 17:25 |
