English
Related papers

Related papers: Albite feldspar dissolution kinetics as a function…

200 papers

Deleterious aggregate reactions induced by iron sulfide minerals, especially pyrrhotite and pyrite, have devastated concrete structures across many global regions. While these minerals have been extensively studied under acidic conditions,…

The thermodynamic mixing properties of alkali feldspar solid solutions between the Na and K end members were computed through atomistic simulations using a neural network potential. We performed combined molecular dynamics and Monte Carlo…

Materials Science · Physics 2024-07-25 Alexander Gorfer , David Heuser , Rainer Abart , Christoph Dellago

The static and dynamic structure of liquid Al is studied using the orbital free ab-initio molecular dynamics method. Two thermodynamic states along the coexistence line are considered, namely T = 943 K and 1323 K for which X-ray and neutron…

Disordered Systems and Neural Networks · Physics 2009-11-07 David J. Gonzalez , Luis Enrique Gonzalez , Jose Manuel Lopez , Malcolm J. Stott

Chalcogenide glass-silver heterostructures are candidates for photoresist and diffractive optical applications. To optimize their processing, we report the kinetics of Ag photo-dissolution in As2S3 matrix using in-situ optical…

Materials Science · Physics 2018-10-17 Pritam Khan , Yinsheng Xu , William Leon , K. V. Adarsh , Dmitri Vezenov , Ivan Biaggio , Himanshu Jain

Alkali diffusion is a first-order control for microstructure and compositional evolution of feldspar during cooling from high temperatures of primary magmatic or metamorphic crystallization, and knowledge of the respective diffusion…

Materials Science · Physics 2024-05-30 Alexander Gorfer , Rainer Abart , Christoph Dellago

Differential thermal analysis up to complete melting was performed for the complete pseudobinary system LiF-BiF3. Melts with high bismuth fluoride concentration show severe evaporation, nevertheless even pure BiF3 could be molten at 655…

Materials Science · Physics 2012-02-08 G. H. G. Nakamura , D. Klimm , S. L. Baldochi

Resistivity of metastable amorphous Ge2Sb2Te5 (GST) measured at device level show an exponential decline with temperature matching with the steady-state thin-film resistivity measured at 858 K (melting temperature). This suggests that the…

Materials Science · Physics 2018-05-11 S. Muneer , J. Scoggin , F. Dirisaglik , L. Adnane , A. Cywar , G. Bakan , K. Cil , C. Lam , H. Silva , A. Gokirmak

The kinetics of geminate subdiffusion-assisted reactions (SDARs) of interacting particles is analyzed in detail with the use of the non-Markovian fractional Smoluchowki equation (FSE). It is suggested that the interparticle interaction…

Statistical Mechanics · Physics 2008-08-22 A. I. Shushin

This study examines the anisotropic dissolution of the basal plane gibbsite ({\gamma}-Al(OH)3) nanoplates in sodium hydroxide solution using in situ atomic force microscopy (AFM) and density functional theory (DFT) calculations. In the…

Under heating, $\alpha$-AlF$_3$ undergoes a structural phase transition from rhombohedral to cubic at temperature $T$ around 730 K. The density functional method is used to examine the $T$=0 energy surface in the structural parameter space,…

Materials Science · Physics 2009-11-10 Yiing-Rei Chen , Vasili Perebeinos , Philip B. Allen

In the YBa2Cu3O7-{\delta} (YBCO) high temperature superconducting thin film fabrication via the chemical solution deposition method, BaF2 is an important intermediate phase during heat treatment. In this paper, BaF2 thermodynamics stability…

Superconductivity · Physics 2018-02-22 Feng Feng , Hongyuan Lu , Wei Wu , Xiangsong Zhang , Linli Wang

The $^{19}$F($\alpha$,p)$^{22}$Ne reaction is considered to be one of the main sources of fluorine depletion in AGB and Wolf-Rayet stars. The reaction rate still retains large uncertainties due to the lack of experimental studies available.…

The high energy spectrum of alpha particles emitted from a single isotope uniformly contaminating a bulk solid has a flat energy spectrum with a high end cutoff energy equal to the maximal alpha kinetic energy ($T_{\alpha}$) of the decay.…

Instrumentation and Detectors · Physics 2016-04-13 Richard W. Kadel

The melting curve of aluminium has been determined from 0 to ~150 GPa using first principles calculations of the free energies of both the solid and liquid. The calculations are based on density functional theory within the generalised…

Materials Science · Physics 2007-05-23 Lidunka Vocadlo , Dario Alfe`

Melting is an everyday phase transition that is determined by thermodynamic parameters like temperature and pressure. In contrast, ultrafast melting is governed by the microscopic response to a rapid energy input and, thus, can reveal the…

The Gibbs energy, G, determines the equilibrium conditions of chemical reactions and materials stability. Despite this fundamental and ubiquitous role, G has been tabulated for only a small fraction of known inorganic compounds, impeding a…

Studies of the 16O(9Be,alpha7Be)14C and 7Li(9Be,alpha7Li)5He reactions at E{beam}=70 MeV have been performed using resonant particle spectroscopy techniques. The 11C excited states decaying into alpha+7Be(gs) are observed at 8.65, 9.85,…

High density ($.3 < \bar{n}/10^{20}{\rm m^{-3}} < .8$), low $q_a$ ($1.9<q_a<3.4$), Ohmic discharges from the ASDEX experiment is analysed statistically. Bulk parameter scalings and parameterised temperature and density profile shapes are…

Plasma Physics · Physics 2018-03-29 P. J. Mc Carthy , K. S. Riedel , O. J. W. F. Kardaun , H. Murmann , K. Lackner

Theoretical analysis and experimental results on the combustion in the Ni-Al layered system are presented. Combustion wave temperature and velocity were measured and microstructural and compositional determinations were made. The latter…

Chemical Physics · Physics 2009-09-25 A. S. Shteinberg , V. A. Shcherbakov , Z. A. Munir

Using the experimental capability of the novel X-ray diffraction instrument available at the 25 Tesla Florida Split Coil Magnet at the NHMFL, Tallahassee we present an extensive investigation on the magnetostriction of polycrystalline…

Materials Science · Physics 2021-06-23 S. Sharma , A. E. Kovalev , D. J. Rebar , D. Mann , V. Yannello , M. Shatruk , A. V. Suslov , J. H. Smith , T. Siegrist
‹ Prev 1 2 3 10 Next ›