Thermodynamics of the Al_2O_3-SiO_2-Tio_x Oxide System at 1873K

Access this Article

Search this Article

Author(s)

Abstract

Isothermal phase relations for the Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>–TiO<sub>X</sub> system have been investigated under strongly reducing conditions, achieved by equilibrium between graphite and CO gas, P<sub>O<sub>2</sub></sub>=4.56×10<sup>-16</sup> atm at 1873 K, in equilibria with a saturating oxide tablet.<BR> Activities of Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> were measured by the Knudsen effusion method. Activities of SiO<sub>2</sub> were also measured by the chemical equilibrium between the oxide and the Fe–Si–C alloy. Activity of TiO<sub>X</sub> was also estimated from the composition of the Si–Al–Ti alloy in equilibrium with the oxide assuming that the alloy conformed to a regular solution. In addition, steel composition equilibrated with the oxide of arbitrary composition has been calculated by the activities of each component of the oxide system obtained in the present study.

Journal

  • ISIJ International

    ISIJ International 42(5), 474-481, 2002-05-15

    The Iron and Steel Institute of Japan

References:  16

  • <no title>

    TAKAMURA J.

    Proc. 6th Int. Iron and Steel Cong. 591, 1990

    Cited by (2)

  • <no title>

    SAWAI T.

    Tetsu-to-Hagane 82, 587, 1996

    Cited by (1)

  • <no title>

    OGIBAYASHI S.

    Nippon Steel Tech. Rep. 351, 64, 1994

    Cited by (1)

  • <no title>

    ITO M.

    ISIJ Int. 37, 839, 1997

    Cited by (3)

  • <no title>

    OHTA M.

    ISIJ Int. 39, 1231, 1999

    Cited by (4)

  • <no title>

    REIN R.

    Trans. Metall. Soc. AIME 233, 415, 1965

    Cited by (2)

  • <no title>

    NIST-JANAF

    J. Phys. Chem. Ref. Data 154,170, 1998

    Cited by (1)

  • <no title>

    VDEh

    Slag Atlas 48, 1995

    Cited by (1)

  • <no title>

    ITO K.

    Tetsu-to-Hagane 67, 2131, 1981

    Cited by (1)

  • <no title>

    TOOP G. W.

    Trans. Metall. Soc. AIME 233, 850, 1965

    Cited by (1)

  • <no title>

    DESAI P. D.

    J. Phys. Chem. Data 16, 109, 1987

    Cited by (1)

  • <no title>

    MIKI T.

    Metall.Mater.Trans.B 29B, 1043, 1998

    Cited by (3)

  • <no title>

    TURKDOGAN E. T.

    Physical Chemistry of High Temperature Technology 22, 1980

    Cited by (2)

  • <no title>

    The 19th Committee on Steelmaking, Steelmaking Data Source-book, The Japan Soc. for the Promotion of the Science 280, 1988

    Cited by (1)

  • <no title>

    YANCHANG G.

    Metall. Trans. B 21B, 543, 1990

    Cited by (2)

  • Phase Equilibria for the MnO-SiO_2-Ti_2O_3 System

    AMITANI Hiroshige , MORITA Kazuki , SANO Nobuo

    ISIJ International 36, S26-S29, 1996-12-15

    J-STAGE  References (5) Cited by (4)

Codes

Page Top