Thermodynamic Data For Gallium and Scandium Sesquioxides.
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Thermodynamic Data For Gallium and Scandium Sesquioxides.

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Published by s.n in S.l .
Written in English

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Edition Notes


SeriesReport of investigations (United States. Bureau of Mines) -- 6198
ContributionsPankratz, L., Kelley, K.
ID Numbers
Open LibraryOL21742456M

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Experimental thermochemical and related data for rare earth sesquioxides, R 2 O 3 (R = Sc, Y, La–Lu) are critically reviewed to provide a consistent set of thermodynamic functions covering the temperature range from at least K up to above the melting point taking the polymorphism into account. Discrepancies in the available data are discussed and further studies to resolve them and to Cited by: Gallium and germanium in the metal and silicates of L- and LL-chondrites types 3 and 4, as well as types 5 and 6, are not resolvable. For the LL-group the data are too sparse. In Fig. 6, with the exception of Barratta, all chondrites with He ages shorter than I'O b.y. belong to types 6 and by: A consistent thermodynamic data set for the Ca–Ca3N2 system was obtained by considering the present experimental results and reliable literature data. The calculated eutectic reaction occurred. Scandium(III) complexes of conjugates are stable in vivo and show good pharmacokinetic properties due to their high hydrophilicity. 39–41 Trivalent gallium is a similar very hard metal ion and phosphinic acid derivatives of NOTA Chemometrics '95, in Abstract book, Pardubice, Czech Republic, , p. .

  Yat. S.P. Yatsenko, A.A. Semyannikov, B.G. Semenov, and K.A. Chuntonov, Phase Diagrams of Rare Earth Metals with Gallium, J. Less-Common Met., , 64, p The only stable oxidation states of these elements in aqueous solution are III for Ga, In and Sc, and IV for Ge. The radii of these ions are compared in Table 1, from which it can be seen that Ga 3+, In 3+ and Sc 3+ are all somewhat larger than Al 3+, and that Ge 4+ is somewhat larger than Si 4+.The high charge and moderate size of these ions dictates that they are “hard” acids in the. A thermodynamic assessment of the Cu–Ga system was carried out by the CALPHAD approach (CALculation of PHase Diagram). The liquid phase, the solid solution phases of fcc (α-Cu), bcc (β) and hcp (ζ), the solution compounds of Cu 9 Ga 4_ 0 (γ 0), Cu 9 Ga 4_ 1 (γ 1), Cu 9 Ga 4_ 2 (γ 2) and Cu 9 Ga 4_ 3 (γ 3), the stoichiometric compounds of Cu Ga (ζ ′) and CuGa 2, and the.   The fundamental characteristics of the reduction of scandium trifluoride and trichloride with aluminum were studied by thermodynamic modeling over wide temperature and pressure ranges (– K and 1– Pa for ScF3 and – K and 1– Pa for ScCl3). Calculations of the equilibrium compositions of the systems were performed to draw conclusions about the contents of .

The distribution of trace quantities of Ge between metal, silicate and sulfide phases has been studied hydrothermally at controlled P O 2 by means of oxygen buffer techniques. Radioactive Ge labeled olivine of varying Mg and Fe composition and Ge labeled iron were synthesized for this °C and bars, Ge is strongly siderophile in the iron-olivine system even at the. Contributions to the data on theoretical metallurgy. IV, Metal carbonates correlations and applications of thermodynamic properties. Author Kelley, K. K. (Kenneth Keith), The growth of gallium oxide thin film and nanowires can be achieved by heating and oxidizing pure gallium at high temperatures (~ °C) in the presence of trace amounts of oxygen. Thermal expansion of the sesquioxides of yttrium, scandium, and gadolinium Denzil Wayne Stacy Iowa State University Follow this and additional works at: Part of theCeramic Materials Commons, and theThermodynamics Commons.