Effect of refractory properties on initial bubble formation in continuous-casting nozzles

Go Gi Lee, Brian G. Thomas, Seon Hyo Kim

Research output: Contribution to journalArticlepeer-review


A water model has been applied to investigate initial bubble behavior using specially-coated samples of porous MgO refractory to simulate the high-contact angle of steel-argon refractory systems with different permeabilities. Air is injected through the porous refractory and travels through many inter-connected pores to exit the surface through "active sites". An active site is a pore where bubbles exit from the surface of the porous refractory. The effect of refractory properties has been investigated in both stagnant and downward-flowing water. The number of active sites increases with increasing gas injection flow rate, permeability, and velocity of the downward-flowing water, and lower contact angle.

Original languageEnglish (US)
Pages (from-to)501-506
Number of pages6
JournalMetals and Materials International
Issue number3
StatePublished - Jun 2010


  • Bubble
  • Continuous casting
  • Nozzle
  • Permeability
  • Porous refractory

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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