Viscosity, Thermal Conductivity, and Diffusion Coefficient of Ar–Ne and Ar–Kr Gaseous Mixtures in the Temperature Range 25–700°C

1970 ◽  
Vol 53 (10) ◽  
pp. 3773-3780 ◽  
Author(s):  
J. Kestin ◽  
W. Wakeham ◽  
K. Watanabe
Keyword(s):  
Thermal Conductivity ◽  
Diffusion Coefficient ◽  
Gaseous Mixtures ◽  
Temperature Range ◽  
And Diffusion

scholarly journals Thermal conductivity and diffusion coefficient of polymer blend 80%EP/20%UPE reinforced with sand particles

2018 ◽  
Vol 16 (38) ◽  
pp. 17-25 ◽  
Author(s):  
R. H. Khalaf
Keyword(s):  
Thermal Conductivity ◽  
Diffusion Coefficient ◽  
Polymer Blend ◽  
Unsaturated Polyester ◽  
Matrix Material ◽  
Weight Fraction ◽  
Determine Diffusion Coefficient ◽  
Chemical Solutions ◽  
Sand Particles ◽  
And Diffusion

New polymer blend with enhanced properties was prepared from (80 %) epoxy resin (Ep), (20%) unsaturated polyester resin (UPE) as a matrix material. The as-obtained polymer blend was further reinforced by adding Sand particles of particle size (53 μm) with various weight fraction (5, 10, 15, 20 %). Thermal conductivity and sorption measurements are performed in order to determine diffusion coefficient in different chemical solutions (NaOH, HCl) with concentration (0.3N) after immersion for specific period of time (30 days). The obtained results demonstrate that the addition of sand powder to (80%EP/20%UPE) blend leads to an increase of thermal conductivity, with an optimum/minimum diffusion coefficient in (HCl)/(NaOH), respectively.

scholarly journals Effect of water absorption on some mechanical and physical properties of epoxy/polyurethane blend reinforced with nano silica powder

2019 ◽  
Vol 15 (32) ◽  
pp. 92-98
Author(s):  
Rana M. Salih
Keyword(s):  
Thermal Conductivity ◽  
Diffusion Coefficient ◽  
Impact Strength ◽  
Flexural Strength ◽  
Physical Properties ◽  
Nano Silica ◽  
Silica Powder ◽  
Mechanical And Physical Properties ◽  
The Impact ◽  
And Diffusion

The aim of this work is to evaluate some mechanical and physicalproperties (i.e. the impact strength, hardness, flexural strength,thermal conductivity and diffusion coefficient) of(epoxy/polyurethane) blend reinforced with nano silica powder (2%wt.). Hand lay-up technique was used to manufacture the compositeand a magnetic stirrer for blending the components. Results showedthat water had affected the bending flexural strength and hardness,while impact strength increased and thermal conductivity decreased.In addition to the above mentioned tests, the diffusion coefficientwas calculated using Fick’s 2nd law.

PERMEABILITY AND DIFFUSION COEFFICIENT PREDICTION OF FRACTAL POROUS MEDIA WITH NANOSCALE PORES FOR GAS TRANSPORT

2018 ◽  
Vol 21 (12) ◽  
pp. 1253-1263
Author(s):  
Ruifei Wang ◽  
Hongqing Song ◽  
Jiulong Wang ◽  
Yuhe Wang
Keyword(s):  
Porous Media ◽  
Diffusion Coefficient ◽  
Gas Transport ◽  
And Diffusion

Measurement of apparent thermal conductivity of regenerator materials in 4-20 K temperature range

Cryogenics ◽  
2021 ◽  
pp. 103300
Author(s):  
Yang Biao ◽  
Xi Xiaotong ◽  
Liu Xuming ◽  
Xu Xiafan ◽  
Chen Liubiao ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Temperature Range ◽  
Apparent Thermal Conductivity
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