Thermodynamic Property of Tellurium in Molten Iron Measured by the Transpiration Method
Shun Ueda, Shumpei Suzuki, Takeshi Yoshikawa, Kazuki Morita
pp. 397-403
Abstract
Tellurium is an important alloying element in free-machining steel, but its thermodynamic properties in molten iron are not well understood. In the present study, the standard Gibbs energy (ΔG°) for the dissolution of tellurium gas into molten iron was determined in the temperature (T) range from 1823 to 1873 K by a vapor-liquid equilibration technique, in which the transpiration method was used to control the vapor pressure of tellurium. This relationship is expressed by the following equations:
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