The Effect of Co and Fe on Densification and Microstructure of W- 25wt%Cu Composites Prepared by Direct Liquid Infiltration
DOI:
https://doi.org/10.58987/pg1j4c55Keywords:
Transition Elements, Densification, Liquid phase sintering, Liquid infiltrationAbstract
During this study, full-density W-25wt.% Cu composites were prepared by conventional method (liquid phase sintering and liquid infiltration). Experiments were carried out to evaluate the effect of Co and Fe additives in the range 0.3 to 3 wt.% on the densification of W- 25Cu composites. The sintering temperatures were performed at 1050oC and 1250oC for 2h under vacuum. The experimental results showed that, near full density has been achieved at 1250oC and the values of sintering density were between 97%-99% of theoretical density. In addition, the densification was depended on the concentration of transition elements and sintering temperature. The Microstructures and density were characterized using scanning electron microscope (SEM) and water displacement method, respectively.
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