منابع مشابه
The redox chemistry of niobium(V) fluoro and oxofluoro complexes in LiF-NaF-KF melts
The electrochemical behavior of niobium(V) fluoro and oxofluoro complexes in eutectic LiF-NaF-KF (FLINAK) melts at 700°C has been studied by cyclic voltammetry. The fluoro complexes NbF, introduced into the melt by the addition of K2NbF7, can be reduced to niobium metal in two reversible steps involving one and four electrons, respectively. At 700°C the diffusion constants of the fluoro niobate...
متن کاملVaporization and Thermodynamics of Glass-Forming Oxide Melts: Mass Spectrometric Study and Modeling
Information on the vaporization processes and thermodynamic properties of glass-forming oxide melts in the systems MgO-B2O3-SiO2, CaO-B2O3-SiO2, SrO-B2O3-SiO2, BaO-B2O3-SiO2, PbO-B2O3-SiO2, CdO-B2O3-SiO2, ZnO-B2O3-SiO2, Bi2O3-B2O3-SiO2 and Bi2O3-GeO2-SiO2 together with the earlier obtained data is discussed. These data were obtained by high-temperature mass spectrometric method. Various types o...
متن کاملTransport coefficients in silicate melts from structural data via a structure-thermodynamics-dynamics relationship.
The viscosity and diffusivities of silicate melts under high-pressure, high-temperature conditions are difficult to obtain experimentally. Estimation and extrapolation of transport coefficients are further complicated by their extreme sensitivity to melt composition. Our molecular-dynamics simulations show that, over a broad range of melt composition, temperature, and pressure, the diffusivitie...
متن کاملThermal analysis of Li2O TeO2 glass
The thermal properties of 0.30Li2O 0.70TeO2 glass are studied. Speci®c heat, Cp, is measured in the 170°C < T < 270°C interval. The Einstein temperature, hA 840 K, is determined from the temperature course of Cp. In the glass transition interval, the heat capacity undergoes an S-shaped transition from the value, Cgl, of the glass to that of undercooled melt, Cp. It is found that Cgl=Cp 0:62. ...
متن کاملLeukemia inhibitory factor (LIF) and LIF receptor in human lung. Distribution and regulation of LIF release.
The distribution and regulation of leukemia inhibitory factor (LIF) and its receptor (LIFR) in human lung tissue is unknown. We recently found that LIF was immunolocalized to several cell types in human airways, and that exogenous LIF modulated neural and contractile responses of explanted airways. The present study aimed to determine the cellular distribution and regulation of gene transcripts...
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ژورنال
عنوان ژورنال: ECS Proceedings Volumes
سال: 1992
ISSN: 0161-6374,2576-1579
DOI: 10.1149/199216.0611pv