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| Titel: |
Composition Heterogeneity in NiBAl Combustion Synthesis |
| Auteur: |
Hung-Pin Li |
| Verschenen in: |
Journal of applied sciences |
| Paginering: | Jaargang 5 (2005) nr. 1 pagina's 64-69 |
| Jaar: |
2005 |
| Inhoud: |
Combustion synthesis is a technique that material synthesis is accomplished by the propagation of a combustion front across a powder compact. Heterogeneous distribution of reactants is common when powders are mixed but the conventional modeling treatments for combustion synthesis thus far have only considered uniform systems. The occurrence of the composition heterogeneity may result in the local variation of the parameters, including density, heat capacity and thermal conductivity. Such a variation of the thermochemical/physical parameters further changes the reaction temperature and propagation velocity; and affects the global properties. Thus, it is important to investigate the influence of composition heterogeneity on the combustion synthesized products. This study addresses the composition heterogeneity effect on Ni + Al combustion synthesis numerically. The correlation of the composition heterogeneity with the combustion temperature and propagation velocity is also studied. In addition, the heterogeneous effect caused by each individual parameter is investigated. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 13 van 80 gevonden artikelen
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