diffusion constant


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diffusion constant

[də′fyü·zhən ‚kän·stənt]
(solid-state physics)
The diffusion current density in a hologeneous semiconductor divided by the charge carrier concentration gradient.
References in periodicals archive ?
5) represented slope of second linear region in the plot and it had been taken as the intraparticle diffusion constant.
Appearance of meningiomas on diffusion-weighted images: Correlating diffusion constants with histopathologic findings.
For comparison, the diffusion constant for bulk water (at 20[degrees]C) is 2.
In this model the diffusion constant, D, or more accurately the diffusion coefficient, is assumed constant throughout the decomposition.
The soil diffusion constant k for contour plowing was also affected by plow depth.
Thus, the differential diffusion constant of the nail is several hundred times that of skin.
The ions then diffuse into the adsorbing particle with a diffusion constant of D.
0] is the surface concentration, a is the radius of the sphere, and D is the diffusion constant of the substance.
Small differences in melt temperature will, therefore, greatly affect the diffusion constant and weldability by altering this viscosity term.
where t is time (recorded in days for this paper) and D is the diffusion constant (a measure of the long-term spread of populations).
Diffusional exponents (n) and diffusion constant (k) are calculated and listed in Table 3.

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