說明

Diffusion coefficient, also called Diffusivity, is an important parameter indicative of the diffusion mobility. Diffusion coefficient is not only encountered in ...

J is the diffusion flux, of which the dimension is the amount of substance per unit area per unit time. · D is the diffusion coefficient or diffusivity. · d φ d x ...

由 MP di Cagno 著作 · 2018 · 被引用 51 次 — This method is based on spectroscopic measurement of the variation of the local concentration of a substance during spontaneous migration of ...

2011年2月2日 — The diffusion coefficient is a physical constant dependent on molecule size and other properties of the diffusing substance as well as on ...

Diffusivity, mass diffusivity or diffusion coefficient is usually written as the proportionality constant between the molar flux due to molecular diffusion ...

Publisher Summary. The chapter emphasizes on diffusion coefficients. The diffusion coefficient is the proportionality between flux and concentration gradient.

The diffusion coefficient, also known as the diffusivity, describes how fast one material can diffuse through another material. The higher the diffusion ...

2015年1月14日 — A typical diffusion coefficient for a molecule in the gas phase is in the range of 10-6 to 10-5 m2/s. By contrast, diffusion for molecules ...