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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1718| OPTIMUM PARAMETERS FOR MINIMUM RESIDUAL POROSITY IN Al/SiCP COMPOSITES | |
| JUAN ANDRES AGUILAR MARTINEZ | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Porosity | |
| The effect of the following processing parameters on the residual porosity of Al/SiCp composites was investigated: SiC particle size, SiC type and Mg content in the aluminum alloy. The contribution of each of the aforementioned parameters and their interactions was determined using analysis of variance and the effect of the levels of each parameter was investigated using surface response analysis. Results from surface response analysis are in excellent agreement with those obtained with ANOVA. Anova results show that particle size is the parameter that most significantly impacts the residual porosity, followed by the interaction between SiC type and SiC particle size. Surface response analysis indicates that for both types of SiC, residual porosity diminishes with decreasing particle size. Using 20 μm powders, none of the two types of SiC significantly affects residual porosity; nonetheless, a composite with C SiC exhibits the minimum residual porosity. Using 75 μm powders, variation in type of SiC, significantly impacts residual porosity. Regardless of the Mg level in the alloy, the lower the particle size, the lower the porosity. At a given particle size, variation in Mg content does not significantly affect residual porosity; however, an alloy 3 wt.% Mg produces the highest porosity. Accordingly, the optimum parameters for minimum residual porosity are: 20μm SiC type C, with an alloy 6 wt.% Mg. | |
| 2003 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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