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Thermoelectric Powers of Alloys of Alkalis in Alkalis
Physical Review, 1968The thermoelectric powers of alloys of alkalis in alkalis at very low temperatures are calculated, and satisfactory agreement with experiment is obtained. In particular, the correct sign is found for the first time. The Faber-Ziman theory is found to be semiquantitatively applicable in the corresponding liquids.
D. E. Thornton, W. H. Young, Axel Meyer
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Alkali–silica reactivity of alkali volcanic rocks
European Journal of Environmental and Civil Engineering, 2014The purpose of this study is to determine the alkali silica reactivity (ASR) of alkali volcanic rocks (from basalt to rhyolite) that have different mineralogical, chemical compositions and textures. For this purpose, nine different alkali volcanic samples, located in seismically active Lake Van region, were collected from five different volcanic area ...
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Alkali interdiffusion in alkali feldspars
2014Cation exchange experiments were conducted at 800°C to 1000°C and 1 bar using oriented plates of sanidine and NaCl-KCl salt mixtures as starting material. The formation of interdiffusion fronts propagating into the sanidine by Na-K-interdiffusion on the alkali sublattice was observed.
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Alkali motion in alkali silicate glass
Journal of Applied Physics, 1979Alkali motion in alkali silicate glass was studied by the method of ionic thermocurrent which was developed as a highly sensitive technique for studying relaxation of polarized impurity-vacancy dipoles in ionic crystals. Two current peaks were observed in the temperature range −196–100 °C, and were ascribed to orientational depolarization of ...
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Alkali Blues: Blue‐Emissive Alkali Metal Pyrrolates
Chemistry – A European Journal, 2019Abstract2‐Iminopyrroles [HtBuL, 4‐tert‐butyl phenyl(pyrrol‐2‐ylmethylene)amine] are non‐fluorescent π systems. However, they display blue fluorescence after deprotonation with alkali metal bases in the solid state and in solution at room temperature. In the solid state, the alkali metal 2‐imino pyrrolates, M(tBuL), aggregate to dimers, [M(tBuL)(NCR)]2 (
Oliver Back +3 more
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Superatoms and their assemblies based on alkali and super-alkali motifs
Journal of Computational Methods in Sciences and Engineering, 2008It is shown that chosen stable clusters can mimic the chemical behavior of atoms in the periodic table and hence can be regarded as superatoms forming a third dimension of the periodic table. The review discusses the developments leading to the superatom concept and our recent studies on superhalogens and superalkalis.
Peneé A. Clayborne +5 more
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Effect of the inherent alkalis of alkali activated slag on the risk of alkali silica reaction
Cement and Concrete Research, 2017Abstract Alkali silica reaction (ASR) occurred in the alkali activated slag (AAS) concrete was evaluated by a revised mortar prism method. The mortars were made of blast furnace slags activated by alkali silicate solution possessing different modulus (0.5, 0.75, 1 and 2) as well as cations (sodium and potassium) and standard sand with a volume ...
Ricarda Tänzer, Yu Jin, Dietmar Stephan
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Core Exciton of Alkali and Alkali-Earth Halides
Journal of the Physical Society of Japan, 1993Low energy electron loss spectra (LEELS) of alkali halides LiF, NaCl, KCl, KBr, KI, RbBr and CsCl, and alkali-earth halides CaF 2 and CaCl 2 are measured for primary energies 30 to 900 eV. For K and Ca-halides, there are four loss peaks in the core exciton regions, some of which have not been observed in optical measurements and high energy electron ...
Teruhiko Mabuchi +2 more
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2004
Abstract For multi-electron atoms we cannot solve the Hamiltonian analytically, but by making appropriate approximations we can explain their structure in a physically meaningful way. To do this, we start by considering the elementary ideas of atomic structure underlying the periodic table of the elements.
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Abstract For multi-electron atoms we cannot solve the Hamiltonian analytically, but by making appropriate approximations we can explain their structure in a physically meaningful way. To do this, we start by considering the elementary ideas of atomic structure underlying the periodic table of the elements.
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Heat of mixing of equiatomic alkali-alkali alloys
Journal of Physics F: Metal Physics, 1980The Gibbs-Bogoliubov variational technique is used to study the internal energy and entropy of liquid alkali metals as well as heat of mixing and excess entropy of mixing for equiatomic NaK, KRb and NaCs alloys. A Heine-Abarenkov-type model potential has been considered with Hartree, Hubbard-Sham and Vashishta-Singwi exchange and correlation functions.
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