Solubility of carbon in CaO-B2O3 and BaO-B2O3 slags

Joo Hyun Park, Dong Joon Min

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22 Citations (Scopus)


The solubility of carbon in molten CaO-B2O3 and BaO-B2O3 slags at high temperatures was measured to understand the dissolution mechanism of carbon into the slags. The B2O3-bearing slags, which have a wide range of liquids, at the temperature of interest have been applied to investigate the effect of basicity on the solubility of carbon from the saturation of acidic or basic components. The solubility of carbon, as a function of the composition of slags, shows a minimum value, and it is suggested that carbon dissolves by different mechanisms in the acidic and basic slags, respectively. From the infrared spectra measurements, the wave number indicating the B-C bond was found to be about 1150 cm-1 in the acidic region of slags; hence, the incorporation of carbon into the borate network was confirmed qualitatively. The carbide capacity was compared to the nitride capacity, showing that the dissolutions of carbon and nitrogen into the slags are similar.

Original languageEnglish
Pages (from-to)1045-1052
Number of pages8
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Issue number6
Publication statusPublished - 1999

Bibliographical note

Funding Information:
The authors express their appreciation to the Korea Science and Engineering Foundation (Grant No. 97-0300-0801-3) for financial support of this research work.

All Science Journal Classification (ASJC) codes

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


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