"The Knudsen effusion method was used to find the equilibrium magnesium pressure for the reaction
3 Zr (s) + 2 MgS (s) = 'Zr3S2' (s) + 2 Mg (v)
By using known standard free energy data for the formation of magnesium sulfide and by using the equilibrium magnesium pressure, the standard free energy of formation of Zr3S2 was calculated and could be expressed by the equation
Δ F° = -139,800 + 49.13 T cal/mole
in the temperature range 900 to 1100°C.
It was also found that Zr3S2 was the zirconium sulfide of lowest sulfur content"--Abstract, page ii.
Larson, Andrew H.
Straumanis, Martin E., 1898-1973
Tappmeyer, Wilbur P.
Lorey, G. Edwin
Materials Science and Engineering
M.S. in Metallurgical Engineering
Missouri School of Mines and Metallurgy
iv, 39 pages
© 1963 Peter E. Otten, All rights reserved.
Thesis - Open Access
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Otten, Peter E., "Determination of the standard free energy of formation of Zr₃S₂" (1963). Masters Theses. 2846.