Thermodynamic Properties of Rare Earth Metal Alloys
Apr 26 2007 · Some of the alloys investigated exhibit unusual concentration and temperature dependencies of the partial and integral thermodynamic properties obtained. It will be shown that a combination of experimental investigation with appropriate thermodynamic modelling is an efficient way to determine the thermodynamic properties in the stable and
Get PriceSelected values of chemical thermodynamic properties
Schumm R H Wagman D D Bailey S Evans W H and Parker V B. Selected values of chemical thermodynamic properties. Tables for the lanthanide (rare earth) elements (elements 62 through 76 in the standard order of arrangement). United States N. p. 1973. Web.
Get PriceThermodynamic properties of pyrochlore-like rare earth
The temperature dependence of the heat capacity of pyrochlore-like compounds CaLa2MoO7 and MgLa2MoO7 has been investigated over the range of 4.4–320 K by adiabatic calorimetry. The main thermodynamic functions and fractal properties of the compounds over the range of 5–320 K have been determined based on the experimental data. We have revealed the heat capacity anomaly in the
Get PriceThermodynamic Considerations in Molten Salt Electrolysis
consists of lanthanides group (from lanthanum to lutetium) yttrium and scandium. Rare earths share some common properties such as softness ductility malleability reactivity and magnetic. Those properties especially the latter and the fact rare earth magnets are the strongest type of magnets make rare earths useful in many applications.
Get PriceThermodynamic properties of pyrochlore-like rare earth
The temperature dependence of the heat capacity of pyrochlore-like compounds CaLa2MoO7 and MgLa2MoO7 has been investigated over the range of 4.4–320 K by adiabatic calorimetry. The main thermodynamic functions and fractal properties of the compounds over the range of 5–320 K have been determined based on the experimental data. We have revealed the heat capacity anomaly in the
Get PriceHigh temperature thermodynamic properties of some of the
have been observed for some of the rare earth elements in the oxides and salts. The chemical properties for the trivalent ions are in general the same the physical properties on the other hand reflect the difference in the number of 4f elec trons as shown in the magnetic optical and thermal properties.
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The thermodynamic properties of schoepite and metaschoepite were obtained by means of theoretical solid-state methods as a function of temperature. Since the values of these properties for schoepite have not been measured experimentally they were predicted. The computed thermodynamic functions of metaschoepite were in excellent agreement with the experimental information. These functions
Get PriceThermodynamic and physical properties of yttrium and some
Mar 01 1987 · Thermodynamic and physical properties of yttrium and some rare earth hydrides Nevertheless the reason for the variation in the thermodynamic properties for the Y-H system is not yet established. The constants of the van t Hoff equation and the AHf and AS values calculated from them for the two-phase region in the Er-H system differ non
Get PriceRare Earth Elements in Mineral Deposits Speciation in
J. R. Haas E. L. Shock and D. C. Sassani "Rare earth elements in hydrothermal systems Estimates of standard partial molal thermodynamic properties of aqueous complexes of the rare earth elements at high pressures and temperatures " Geochimica et Cosmochimica Acta vol.
Get PriceFluorescence Properties of Rare-Earth-Doped Sol-Gel
Oct 19 2016 · Glasses may be prepared by sol-gel processing over a wide range of compositions and thick multilayer deposits may be used as waveguides for integrated optics. Doping these layers with rare-earth (RE) ions enables the fabrication of active devices for optical amplifiers the incorporation of these ions into nanocrystallites offers possibilities for increased dopant concentration without
Get PriceTHERMODYNAMIC PROPERTIES OF RARE EARTH COMPLEXES. I
thermodynamic properties of rare earth complexes. III. FREE ENERGY ENTHALPY AND ENTROPY CHANGES FOR THE FORMATION OF RARE EARTH ACETATE GLYCOLATE AND THIOGLYCOLATE COMPLEXES AT 25.00 C.
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a radiochemical study of some kinetic and thermodynamic properties of complex ions of the rare earths Journal Article Betts R H Dahlinger O F Munro D MRadioisotopes in Sci. Research CHROMATOGRAPHIC STUDIES ON THE HYDROLYSIS OF CARBIDES.
Get PriceA rare earth-DOTA-binding antibody probe properties and
An antibody that binds rare earth complexes selectively could be used as a docking station for a set of probe molecules of particular interest for medical imaging and therapy. The rare earths are rich in probe properties such as the paramagnetism of Gd the luminescence of Tb and Eu and the nucle
Get PriceHandbook on the Physics and Chemistry of Rare Earths
Two other reviews deal with solid state properties one contribution includes information on existing thermodynamic data of lanthanide trihalides (Chapter 213) while the other one describes optical properties of rare earth compounds under pressure (Chapter 217). Finally two chapters focus on solution chemistry.
Get PriceThermochemistry of rare-earth-metal-alkaline-earth-metal
Some thermodynamic aspects of highT c superconductors. Variation of the partial thermodynamic properties of oxygen with composition in YBa2Cu3O7−δ. Metallurgical Transactions A 1992 23 Thermochemistry of Rare-Earth-Metal-Alkaline-Earth-Metal-Copper Oxide Superconductors.. ChemInform 1988 19
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The structural electronic mechanical and thermodynamic properties for Al23REMg34 and Al24Mg33RE (RE = Sc Y La Sm and Gd) compounds have been calculated by first-principles theory. The obtained structural parameters and elastic constants of two kinds of doped Al12Mg17 are compared with some theoretical and experimental data. The electronic structure analysis such as density of
Get PriceSurvey of the Thermodynamic Properties of the Charge
We reexamine the thermodynamic properties such as specific heat thermal expansion and elastic constants at the charge density wave (CDW) phase transition in several one- and two-dimensional materials. The amplitude of the specific heat anomaly at the CDW phase transition T CDW increases with increasing T CDW and a tendency to a lineal temperature dependence is verified.
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4.9.4 Lead removal..65 4.9.5 Actinium removal..66
Get PriceSome thermodynamic properties of aqueous rare-earth
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Get PriceThermodynamic Properties of Rare Earth ScienceDirect
Thermodynamic Properties of Rare Earth Compounds. Edited by Alexandra Navrotsky Richard E. Riman Andre M Anderko. Last update 28 August 2020. Actions for selected articles. Rare earth sulfates in aqueous systems Thermodynamic modeling of binary and multicomponent systems over wide concentration and temperature ranges.
Get PriceThermodynamic Properties of Rare Earth Metal Alloys
Apr 26 2007 · Some of the alloys investigated exhibit unusual concentration and temperature dependencies of the partial and integral thermodynamic properties obtained. It will be shown that a combination of experimental investigation with appropriate thermodynamic modelling is an efficient way to determine the thermodynamic properties in the stable and
Get PriceSome physical properties of rare-earth chlorides in
Some physical properties of rare-earth chlorides in aqueous solution Abstract The aqueous solution behavior of some rare-earth chlorides has been investigated at 25° C. in the concentration range between 0.02 molal and saturation. Density measurements on solutions of lanthanum
Get PriceSelected values of chemical thermodynamic properties
Schumm R H Wagman D D Bailey S Evans W H and Parker V B. Selected values of chemical thermodynamic properties. Tables for the lanthanide (rare earth) elements (elements 62 through 76 in the standard order of arrangement). United States N. p. 1973. Web.
Get Price"Some thermodynamic properties of aqueous rare-earth
Recommended Citation. Csejka David Andrew "Some thermodynamic properties of aqueous rare-earth chloride solutions " (1961). Retrospective Theses and Dissertations.
Get PriceThermoelectric properties of rare earth doped SrTiO3
Feb 17 2003 · The thermoelectric properties of Sr 0.9 R 0.1 TiO 3 (R=Y La Sm Gd Dy) are studied from room temperature to 1073 K. The electrical properties including their temperature dependences are independent of the kind of rare earth element which indicates that lattice scattering is predominant for electrons in the considered temperature range.
Get PriceRare Earth-Hydrogen Systems. I. Structural and
Preparation and Some Properties of Nanostructural Rare Earth Nitrides by Using the Reaction of Hydrides with Ammonia. Statistical Thermodynamic Approach to Some Hyperstoichiometric Dihydrides of Lanthanides (La Ce Pr Nd Sm) and Actinides (Np Pu Am).
Get PriceInsight into various properties of rare‐earth–based
Dec 25 2019 · Besides this the variation on some significant thermodynamic properties is also studied. Our successful prediction of the stabilization of the metallic Gd 3 AlX (X = B N) has proposed a route to synthesize novel rare‐earth–based inverse perovskites.
Get PriceSome thermodynamic properties of aqueous rare-earth
We are not allowed to display external PDFs yet. You will be redirected to the full text document in the repository in a few seconds if not click here.click here.
Get PriceTHERMODYNAMIC PROPERTIES OF RARE EARTH COMPLEXES. I
thermodynamic properties of rare earth complexes. III. FREE ENERGY ENTHALPY AND ENTROPY CHANGES FOR THE FORMATION OF RARE EARTH ACETATE GLYCOLATE AND THIOGLYCOLATE COMPLEXES AT 25.00 C.
Get PriceThermal barrier coatingWikipedia
Some negative effects of the addition of ceria include the decrease of hardness and accelerated rate of sintering of the coating (less porous). Rare-earth zirconates. La 2 Zr 2 O 7 also referred to as LZ is an example of a rare-earth zirconate that shows potential for use as a TBC. This material is phase stable up to its melting point and can
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