Abstract
The silica activities of slags in the CaF2−CaO−SiO2 system (NCaO∶NSiO 2>3∶2) have been determined at 1450°C by measuring the equilibrium partial pressure of carbon monoxide for the reaction (SiO2)+3C (s) =SiC (s) +2CO (g) The results have been correlated with phase diagram determinations and are not consistent with other activity measurements in the literature. Lime activities have been determined using the ternary Gibbs-Duhem relationship.
Similar content being viewed by others
References
W. Holzgruber:Proc. First Intern. Symp. on Electroslag Consumable Electrode Remelting and Casting Technol, vol. 2, Camegie-Mellon University, Pittsburgh, 1967.
Yu. N. Gotal'skii:Avtomat. Svarka, 1954, vol. 7, pp. 38–43.
B. I. Medovar and S. M. Gurevich:Avtomat. Svarka, 1955, vol. 8, pp. 31–41.
D. A Dudko and I. N. Rubievskii:Avtomat. Svarka, 1956, vol. 9, pp. 22–9.
B. I. Medovaret al. Autom. Welding, 1960, vol. 13, pp. 54.
J. Hlineny and Z. Buzek:Sb. Ved. Praci, VSB Ostrave, 1965, vol. 11, pp. 483–7.
I. Kasik:Vyzk. Ustrav Hutn. Zeleza Praha. I. Hutn. Konf. VSB v Ostrave, Sbornik Ref. Ocel. Sekce, 1965, pp. 187–96.
B. M. Nikitinet al:Autom. Welding, 1966, vol. 19, pp. 32–4.
Ya. I. Ol'shanskii:Dokl. Akad. Nauk S.S.S.R., 1957, vol. 114, pp. 1246–49.
D. Kumar, R. G. Ward and D. J. Williams: Disc. Faraday Soc., 1962, No. 32, pp. 147–54.
J. F. Elliott, M. Gleiser, and V. Ramakrishna:Thermochemistry for Steelmaking, vol. 2, Addison-Wesley, Reading, Mass, 1963.
A. Glassner:The Thermochemical Properties of Oxides, Fluorides and Chlorides to 2500°K, Argonne National Laboratory, ANL-5750, 1965.
D. A. R. Kay and J. Taylor:Trans. Faraday Soc., 1960, vol. 56, pp. 1372–86.
D. Henderson and J. Taylor:J. Iron Steel Inst., London, 1966, vol. 204, pp. 39–43.
Hsu Yuan-Sunet al:Acta Met. Sinica, 1964, vol. 7, pp. 24–31.
C. Wagner:Thermodynamics of Alloys, pp. 17–22, Addison-Wesley, Reading, Mass., 1952.
L. O. Gerasymenko and V. V. Pidgaet'skii:Dopovidi Akad. Nauk Ukr. RSR, 1963, vol. 4, pp. 475–77.
W. A. Fischer and H. Engelbrecht:Stahl Eisen, 1955, vol. 75, pp. 70–5.
W. Holzgruber and E. Plockinger:Berg-huttemann. Monatsh, 1966, vol. 113, pp. 83–93.
R. Schuhmann:Acta Met., 1955, vol. 3, pp. 219–26.
T. Baak:Physical Chemistry of Steelmaking, p. 84, John Wiley and Sons, London, 1958.
T. Baak:Acta Chem Scand., 1954, vol. 8, pp. 1727.
D. Edmunds: Ph. D. Thesis, University of Strathclyde, 1969.
R. Sridhar and J. H. E. Jeffes:Trans. Inst. Mining Met., 1968, vol. 77, pp. C53–6.
A. Mitchell:Trans. TMS-AIME, 1968, vol. 242, pp. 2507–11.
B. Phillips and A. Muan: J. Amer. Ceram. Soc., 1959, vol. 42, pp. 413–23.
P. P. Budnikov and S. G. Tresvyatskii:Dokl. Akad. Nauk S.S.S.R., 1953, vol. 89, pp. 479–82.
J. Mukerji:J. Amer. Ceram. Soc., 1965, vol. 48, pp. 210–3.
J. Mukerji:Mem. Sci. Rev. Met., 1963, vol. 60, pp. 785–96.
H. Kojima and C. R. Masson:Can. J. Chem., 1969, vol. 47, pp. 4221–8.
M. W. Davies, R.J. Hawkins, and P. N. Smith:BISRA Open Rept., C/63/68. 1968.
G. J. W. Kor and F. D. Richardson:Trans. TMS-AIME, 1969, vol. 245, pp. 319–27.
L. Hillert:Acta Chem. Scand., 1964, vol. 18, pp. 2411.
A. Mitchell:Trans. Faraday Soc., 1967, vol. 63, pp. 1408–17.
Z. P. Ershova and Ya. I. Ol'shanskii:Geokhimiya, 1957, vol. 1, pp. 214–21.
T. Baak and A. Olander:Acta Chem. Scand., 1955, vol. 9, pp. 1350–54.
W. Gutt and G. J. Osborne:Trans. Brit. Ceram. Soc., 1966, vol. 65, pp. 521–34.
L. Hillert:Acta Chem. Scand., 1966, vol. 20, pp. 290–96.
D. J. Salt:Proc. First Intern. Symp. on Electroslag Consumable Electrode Remelting and Casting Technology, vol. 1, Cambridge-Mellon University, Pittsburgh, 1967.
Author information
Authors and Affiliations
Additional information
I. D. SOMMERVILLE, formerly S. R. C. Research Fellow, University of Sheffield England
D. A. R. KAY, formerly Lecturer in Metallurgy University of Sheffield, Engiand
Rights and permissions
About this article
Cite this article
Sommerville, I.D., Kay, D.A.R. Activity determinations in the CaF2−CaO−SiO2 system at 1450°C. Metall Trans 2, 1727–1732 (1971). https://doi.org/10.1007/BF02913898
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02913898