Carbide capacity of CaO-Al2O3-CaF2 slag at 1773 K

Joo Hyun Park, Dong Joon Min, Hyo Seok Song

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12 Citations (Scopus)


The influence of CaF2 on the thermodynamic behavior of carbon in the CaO-Al2O3-CaF2 slag at 1773 K was investigated on the basis of carbide capacity concept. The carbide capacity increases with increasing CaF2 content up to about 25mol%, followed by nearly constant value in the CaOsatd-Al2O 3-CaF2 system. The capacity in the CaO-Al 2O3-CaF2 (44-49 mol% CaO) system rapidly increases by increasing the XCaF2/XAl2O3 ratio up to about unity, and then the capacity-increasing rate decreases at XCaF2/ XAl2O3≥1. The carbide capacity increases with an increase of CaO/Al2O3 ratio at a fixed CaF2 content; also, the addition of CaF2 greater than about 14mol% would have no effect on capacity regardless of CaO/Al2O3 ratio. The iso-carbide capacities obtained in the present work are very similar to the iso-sulfide capacities available in the literature.

Original languageEnglish
Pages (from-to)127-131
Number of pages5
JournalISIJ International
Issue number2
Publication statusPublished - 2002 Feb

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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