Density and temperature dependence of self‐diffusion and shear viscosity of perfluorocyclobutane in the dense fluid region

1977 ◽  
Vol 66 (2) ◽  
pp. 760-765 ◽  
Author(s):  
R. J. Finney ◽  
M. Fury ◽  
J. Jonas
Keyword(s):  
Temperature Dependence ◽  
Shear Viscosity ◽  
Self Diffusion ◽  
Dense Fluid

scholarly journals Temperature dependence of shear viscosity ofSU(3)-gluodynamics within lattice simulation

2017 ◽  
Vol 164 ◽  
pp. 07046
Author(s):  
N.Yu. Astrakhantsev ◽  
V.V. Braguta ◽  
A.Yu. Kotov
Keyword(s):  
Temperature Dependence ◽  
Shear Viscosity ◽  
Lattice Simulation

scholarly journals Investigation of Microscopic Structure and Ion Dynamics in Liquid Li(Na, K)EutecticCl Systems by Molecular Dynamics Simulation

2018 ◽  
Vol 8 (10) ◽  
pp. 1874 ◽  
Author(s):  
Jie Wu ◽  
Jia Wang ◽  
Haiou Ni ◽  
Guimin Lu ◽  
Jianguo Yu
Keyword(s):  
Molecular Dynamics ◽  
Ionic Conductivity ◽  
Shear Viscosity ◽  
Ion Pairs ◽  
Liquid Structure ◽  
Distribution Functions ◽  
Dynamics Simulation ◽  
Molten Chloride ◽  
Ion Clusters ◽  
Self Diffusion

Molten chloride salts are the main components in liquid metal batteries, high-temperature heat storage materials, heat transfer mediums, and metal electrolytes. In this paper, interest is centered on the influence of the LiCl component and temperature on the local structure and transport properties of the molten LiCl-NaCl-KCl system over the temperature range of 900 K to 1200 K. The liquid structure and properties have been studied across the full composition range by molecular dynamics (MD) simulation of a sufficient length to collect reliable values, such as the partial radial distribution function, angular distribution functions, coordination numbers distribution, density, self-diffusion coefficient, ionic conductivity, and shear viscosity. Densities obtained from simulations were underestimated by an average 5.7% of the experimental values. Shear viscosities and ionic conductivity were in good agreement with the experimental data. The association of all ion pairs (except for Li-Li and Cl-Cl) was weakened by an increasing LiCl concentration. Ion clusters were formed in liquids with increasing temperatures. The self-diffusion coefficients and ionic conductivity showed positive dependences on both LiCl concentration and temperature, however, the shear viscosity was the opposite. By analyzing the hydrodynamic radii of each ion and the coordination stability of cation-anion pairs, it was speculated that ion clusters could be the cation-anion coordinated structure and affected the macro properties.

Silver Self-Diffusion in Al2O3/QE22 Magnesium Alloy Matrix Composite

2009 ◽  
Vol 283-286 ◽  
pp. 155-160
Author(s):  
Ivo Stloukal ◽  
Jiří Čermák
Keyword(s):  
Magnesium Alloy ◽  
Temperature Dependence ◽  
Temperature Interval ◽  
Matrix Composite ◽  
Diffusion Coefficients ◽  
Volume Diffusion ◽  
Effective Diffusion ◽  
Measured Temperature ◽  
Alloy Matrix ◽  
Self Diffusion

Self-diffusion of 110mAg has been investigated in fiber reinforced QE22 magnesium alloy matrix composite. Short Saffil fibers (97% -Al2O3 + 3% SiO2) were used as reinforcement. The diffusion measurements were carried out in the temperature interval 648 – 728 K by serial sectioning method. The volume diffusion coefficients Dv (alloy without reinforcement) and the effective diffusion coefficients Deff (alloy with reinforcement) were obtained by analysis of the penetration curves. The silver diffusion coefficient in the interface boundary matrix/Saffil Di was also estimated. The temperature dependence of volume diffusion coefficients Dv was compared with previous data measured using 65Zn in the same alloy and with literature data for Zn impurity diffusion in Mg single crystal. It was observed, that the temperature dependence of both Deff and Di was significantly non-linear in the measured temperature interval. This behavior supports previous observations with zinc diffusion in the same alloy.

Dense fluid shear viscosity and thermal conductivity—the excess

AIChE Journal ◽  
1975 ◽  
Vol 21 (2) ◽  
pp. 410-411 ◽  
Author(s):  
William T. Ashurst ◽  
William G. Hoover
Keyword(s):  
Thermal Conductivity ◽  
Shear Viscosity ◽  
Fluid Shear ◽  
Dense Fluid

scholarly journals Temperature Dependence of Self-Diffusion in Cr2O3 from First Principles

2019 ◽  
Vol 123 (36) ◽  
pp. 22139-22150 ◽  
Author(s):  
Bharat K. Medasani ◽  
Maria L. Sushko ◽  
Kevin M. Rosso ◽  
Daniel K. Schreiber ◽  
Stephen M. Bruemmer
Keyword(s):  
Temperature Dependence ◽  
First Principles ◽  
Self Diffusion

Temperature dependence of water self-diffusion through lipid bilayers assessed by NMR

BIOPHYSICS ◽  
2008 ◽  
Vol 53 (2) ◽  
pp. 147-152 ◽  
Author(s):  
A. M. Khakimov ◽  
M. A. Rudakova ◽  
M. M. Doroginitskii ◽  
A. V. Filippov
Keyword(s):  
Temperature Dependence ◽  
Lipid Bilayers ◽  
Self Diffusion
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