Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy

J. P. Choi, S. J. Lee, E. P. Yoon, Wooyoung Yoon, M. H. Kim, Kwon Hee Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper investigates the effect of bubble on the primary Si size in Al-18wt.%Si alloy. The primary Si size observed was varied with bubble size and bubbling time in bubble process. The effect of the holding temperature of the melt in bubbling process was also investigated. In water model, as the injecting bubble size decreases, the residual bubble size in the water decreases and the residual bubble conservation time in the water increases. Also in the experiment of Al melt, the primary Si size decreases, as the injecting bubble size decreases and as the bubble processing time increases. Pore was observed at the center of primary Si. This pore was observed at many Si phases. So, this experiment suggests that the bubble can be used as nucleation sites of primary Si.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberI
Publication statusPublished - 2004 Jul 27

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Silicon
bubbles
Water
silicon
Conservation
Nucleation
Experiments
Processing
water
porosity
Temperature
conservation
nucleation

Keywords

  • Aluminum
  • Bubbling
  • Hypereutectic
  • Nucleation
  • Silicon

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Choi, J. P., Lee, S. J., Yoon, E. P., Yoon, W., Kim, M. H., & Kim, K. H. (2004). Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy. Materials Science Forum, 449-452(I), 153-156.

Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy. / Choi, J. P.; Lee, S. J.; Yoon, E. P.; Yoon, Wooyoung; Kim, M. H.; Kim, Kwon Hee.

In: Materials Science Forum, Vol. 449-452, No. I, 27.07.2004, p. 153-156.

Research output: Contribution to journalArticle

Choi, JP, Lee, SJ, Yoon, EP, Yoon, W, Kim, MH & Kim, KH 2004, 'Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy', Materials Science Forum, vol. 449-452, no. I, pp. 153-156.
Choi, J. P. ; Lee, S. J. ; Yoon, E. P. ; Yoon, Wooyoung ; Kim, M. H. ; Kim, Kwon Hee. / Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy. In: Materials Science Forum. 2004 ; Vol. 449-452, No. I. pp. 153-156.
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AB - This paper investigates the effect of bubble on the primary Si size in Al-18wt.%Si alloy. The primary Si size observed was varied with bubble size and bubbling time in bubble process. The effect of the holding temperature of the melt in bubbling process was also investigated. In water model, as the injecting bubble size decreases, the residual bubble size in the water decreases and the residual bubble conservation time in the water increases. Also in the experiment of Al melt, the primary Si size decreases, as the injecting bubble size decreases and as the bubble processing time increases. Pore was observed at the center of primary Si. This pore was observed at many Si phases. So, this experiment suggests that the bubble can be used as nucleation sites of primary Si.

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