The thermodynamic properties of the oxide systems CaO-MgO-SiO2 and MgO-Al2O3-SiO2

Henderson, David (1964) The thermodynamic properties of the oxide systems CaO-MgO-SiO2 and MgO-Al2O3-SiO2. PhD thesis, University of Glasgow.

Abstract

The slags used in metallurgical processes are usually very complex in nature, being ternary, quaternary, and even more complex. Complete investigation of the thermodynamic properties of even a portion of such a complex system would involve a very large amount of work even if all the experimental difficulties were solved. Secondly, it is difficult to interpret measurements made on complex slags without first knowing and understanding how simple binary and ternary melts behave. For these reasons, investigators decided to build up thermodynamic data on the simpler binary and ternary melts in the hope that an examination of these data might lead to "models" by which the knowledge of the simpler systems could be used to predict the thermodynamic properties of the more complex slags used in industrial processes. Variation in the thermodynamic activity with composition has been examined in a number of binary and ternary systems and "models" have been suggested by Richardson, Flood et al, and Lumsden. Further experimental work is required and in the present work, the activities of silica in the ternary oxide systems CaO-MgO-SIO2 and MgO-Al2O3-SiO2 have been determined by placing a compact containing pure silica, graphite and silicon carbinde in a graphite crucible and allowing it to come to equilibrium with carbon monoxide at 1500

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Additional Information: Adviser: J Taylor
• Keywords: Materials science
• Date of Award: 1964
• Depositing User: Enlighten Team
• Unique ID: glathesis:1964-73066
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 14 Jun 2019 08:56
• Last Modified: 14 Jun 2019 08:56
• URI: https://theses.gla.ac.uk/id/eprint/73066