Perfluorinatedn-Alkanes CmF2m+2(m< 7):  SecondpVT-Virial Coefficients, Viscosities, and Diffusion Coefficients Calculated by Means of an (n-6) Lennard-Jones Temperature-Dependent Potential

2007 ◽  
Vol 52 (5) ◽  
pp. 1539-1544 ◽  
Author(s):  
Uwe Hohm ◽  
Lydia Zarkova ◽  
Boris B. Stefanov
Keyword(s):  
Diffusion Coefficients ◽  
Virial Coefficients ◽  
Temperature Dependent ◽  
Lennard Jones ◽  
Dependent Potential ◽  
And Diffusion

PREDICTION OF THE TRANSPORT PROPERTIES OF SF6 WITH O2, CO2, CF4, N2 AND CH4 MIXTURES AT LOW DENSITY BY THE INVERSION METHOD (PART II)

2004 ◽  
Vol 03 (01) ◽  
pp. 69-90 ◽  
Author(s):  
BEHZAD HAGHIGHI ◽  
ALIREZA HASSANI DJAVANMARDI ◽  
MOHAMAD MEHDI PAPARI ◽  
MOHSEN NAJAFI
Keyword(s):  
Potential Energy ◽  
Diffusion Coefficients ◽  
Potential Energy Function ◽  
Model Potential ◽  
Inversion Method ◽  
Low Density ◽  
Initial Model ◽  
Lennard Jones ◽  
Inversion Procedure ◽  
And Diffusion

Viscosity and diffusion coefficients for five equimolar binary gas mixtures of SF 6 with O 2, CO 2, CF 4, N 2 and CH 4 gases are determined from the extended principle of corresponding states of viscosity by the inversion technique. The Lennard–Jones 12-6 (LJ 12-6) potential energy function is used as the initial model potential required by the technique. The obtained interaction potential energies from the inversion procedure reproduce viscosity within 1% and diffusion coefficients within 5%.

Transient Enhanced Diffusion in B+ and P+ Implanted Silicon

1986 ◽  
Vol 74 ◽  
Author(s):  
S. J. Pennycook ◽  
R. J. Culbertson
Keyword(s):  
Heat Treatment ◽  
Point Defects ◽  
Diffusion Coefficients ◽  
Thermal Processing ◽  
Rapid Thermal Processing ◽  
Temperature Dependent ◽  
Enhanced Diffusion ◽  
Thermally Activated ◽  
Transient Enhanced Diffusion ◽  
And Diffusion

AbstractWe report the transient enhanced diffusion of supersaturated phosphorus in ion-implanted SPE grown Si. Precipitation proceeds rapidly to a metastable SiP phase, which can be converted to an orthorhombic form or redissolved by subsequent heat treatment. The effects are strongly temperature dependent, and consistent with the trapped interstitial model. The behavior of different dopants follows their relative interstitialcy diffusion coefficients. The results suggest that ion implantation induced point defects dominate over thermally activated point defects during low temperature and certain rapid thermal processing, controlling dopant deactivation and diffusion in crystalline or amorphous silicon, and can also affect the SPE growth rate.

CALCULATION OF THE TRANSPORT PROPERTIES OF GASEOUS MIXTURES OF CF4 WITH O2, N2, CH4 AND CO2 AT LOW DENSITY USING SEMI-EMPIRICAL INVERSION METHOD

2007 ◽  
Vol 04 (01) ◽  
pp. 59-80 ◽  
Author(s):  
BEHZAD HAGHIGHI ◽  
ALIREZA HASSANI DJAVANMARDI ◽  
MOHAMMAD MEHDI PAPARI
Keyword(s):  
Diffusion Coefficients ◽  
Potential Energy Function ◽  
Model Potential ◽  
Inversion Method ◽  
Initial Model ◽  
Gaseous Mixtures ◽  
Lennard Jones ◽  
Inversion Procedure ◽  
Semi Empirical ◽  
And Diffusion

Viscosity and diffusion coefficients for four equimolar binary gaseous mixtures of CF 4 with O 2, N 2, CH 4 and CO 2 are determined from the extended principle of corresponding states by the inversion technique. The Lennard–Jones 12-6 (LJ 12-6) potential energy function is used as the initial model potential required by the technique. The interaction potential energies from the inversion procedure reproduce viscosity within 1% and diffusion coefficients within 5%.

Properties of Gases and Gaseous Mixtures with a Morse Potential

1964 ◽  
Vol 19 (13) ◽  
pp. 1478-1485 ◽  
Author(s):  
O. P. Bahethi ◽  
R. S. Gambhir ◽  
S. C. Saxena
Keyword(s):  
Diffusion Coefficients ◽  
Morse Potential ◽  
Virial Coefficients ◽  
Detailed Comparison ◽  
Combination Rules ◽  
Gaseous Mixtures ◽  
Second Virial Coefficients ◽  
Realistic Potentials ◽  
And Diffusion ◽  
Theory And Experiment

Second virial coefficients, viscosity, thermal conductivity and diffusion coefficients of binary gas mixtures have been computed for the MORSE potential in conjunction with a set of combination rules for the unlike interactions. These calculated values are compared with the experimenta l values with a view to derive inferences regarding the adequacy of the recently proposed MORSE potential. On the basis of this detailed comparison of theory and experiment some specific and useful conclusions have been drawn which enable one to understand the relative footing of this potential in reference to the other two realistic potentials, viz. L-J (12-6) and exp-six.

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