Ratio of Transverse Diffusion Coefficient to Mobility of Electrons in High-Pressure Xenon and Xenon Doped with Hydrogen

2006 ◽  
Vol 45 (10A) ◽  
pp. 7894-7900 ◽  
Author(s):  
Shingo Kobayashi ◽  
Nobuyuki Hasebe ◽  
Takehiro Hosojima ◽  
Takeshi Ishizaki ◽  
Kazuhiro Iwamatsu ◽  
...  
Keyword(s):  
High Pressure ◽  
Diffusion Coefficient ◽  
Transverse Diffusion

Ratio of Transverse Diffusion Coefficient to Mobility of Electrons in High-Pressure Xenon

2004 ◽  
Vol 43 (8A) ◽  
pp. 5568-5572 ◽  
Author(s):  
Shingo Kobayashi ◽  
Nobuyuki Hasebe ◽  
Tsutomu Igarashi ◽  
Takashi Miyachi ◽  
Mitsuhiro Miyajima ◽  
...  
Keyword(s):  
High Pressure ◽  
Diffusion Coefficient ◽  
Transverse Diffusion

Measurements of electron mobility and longitudinal diffusion coefficient in high pressure xenon doped with hydrogen

2019 ◽  
Vol 58 (3) ◽  
pp. 038001
Author(s):  
Hiroki Kusano ◽  
Mitsuhiro Miyajima ◽  
Nobuyuki Hasebe ◽  
Valery V. Dmitrenko
Keyword(s):  
High Pressure ◽  
Diffusion Coefficient ◽  
Electron Mobility ◽  
Longitudinal Diffusion

High Pressure Gas-Liquid Separation: Diffusion Coefficient, the Silent Coalescence Inhibitor

2010 ◽  
Author(s):  
P.M. Dupuy ◽  
M. Fernandino ◽  
H.A. Jakobsen ◽  
H. Svendsen
Keyword(s):  
High Pressure ◽  
Diffusion Coefficient ◽  
Liquid Separation

Formation of Bulk Nanostructured Al3Ni from Elemental Micropowders Using High-Pressure Torsion

2013 ◽  
Vol 765 ◽  
pp. 378-382 ◽  
Author(s):  
Ali Alhamidi ◽  
Kaveh Edalati ◽  
Zen Ji Horita
Keyword(s):  
High Pressure ◽  
Diffusion Coefficient ◽  
Shear Strain ◽  
Melting Temperature ◽  
High Pressure Torsion ◽  
Processing Temperature ◽  
Powder Mixtures

The formation of bulk nanograined Al3Ni intermetallics from elemental micro-powder mixtures of Al-25 mol.% Ni are studied after processing by high-pressure torsion (HPT) for various turns at 473 K and at 573 K. It is found that nanograined Al3Ni intermetallics with high angles of misorientation are produced at temperatures well below the melting temperature. The fraction of Al3Ni intermetallics increases by increasing the shear strain and increasing the HPT processing temperature. During HPT, both Ni and Al atoms diffuse significantly in each other with a diffusion coefficient well comparable to the atomic interdiffusion in the Al3Ni intermetallic at its melting temperature.

scholarly journals Longitudinal and transverse diffusion of electrons in high-pressure xenon

2013 ◽  
Vol 8 (01) ◽  
pp. C01028-C01028 ◽  
Author(s):  
H Kusano ◽  
J A M Lopes ◽  
M Miyajima ◽  
N Hasebe
Keyword(s):  
High Pressure ◽  
Transverse Diffusion

Ambipolar Drift, Deformation, and Diffusion of a Plasma in a Magnetic Field

1973 ◽  
Vol 51 (5) ◽  
pp. 564-573 ◽  
Author(s):  
Richard L. Monroe
Keyword(s):  
Magnetic Field ◽  
Diffusion Coefficient ◽  
Effective Magnetic Field ◽  
Theoretical Problem ◽  
Direction Parallel ◽  
Transverse Diffusion ◽  
Weakly Ionized ◽  
Plasma Diffusion ◽  
Ambipolar Drift ◽  
And Diffusion

The theoretical problem of a weakly ionized, constant temperature, three particle plasma in an externally generated magnetic field is reformulated by transforming the set of 14 macroscopic plasma equations (continuity and momentum equations for ions and electrons plus Maxwell's equations) in 14 unknowns (ion and electron number densities and velocities plus the effective electric and magnetic fields) into an equivalent set of 4 integral equations in 4 unknowns. In the course of this transformation, it is shown that the plasma behavior can be interpreted in terms of three ambipolar processes : drift, deformation, and diffusion. Plasma diffusion is characterized by two diffusion coefficients : the usual Schottky formula applying in the direction parallel to the effective magnetic field and a new expression for the ambipolar transverse diffusion coefficient applying in directions perpendicular to the effective magnetic field. The new ambipolar coefficient differs markedly from the familiar ambipolar coefficient associated with the names of Bickerton, Lehnert, Holway, Allis, and Buchsbaum; and, in general, it gives values for the transverse diffusion coefficient which are two orders of magnitude larger than those given by the latter. It is concluded that ambipolar diffusion can produce a transverse diffusion coefficient large enough to account for the diffusion rates measured by Bohm, Burhop, Massey, and Williams in argon arc discharges.

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