In this article we will discuss about:- 1. Meaning of Diffusion 2. Importance of Diffusion 3. Applications 4. Types 5. Mechanisms 6. Activation Energy 7. Self-Diffusion 8. Diffusion in Oxides and Ionic Crystals 9. Grain Boundary and Surface Diffusion 10. Factors that Influence Diffusion. Contents: Meaning of Diffusion Importance of Diffusion Applications of Diffusion Types of Diffusion Diffusion Mechanisms Activation [...]
Fick proposed laws governing the diffusion of atoms and molecules, which can be applied to the diffusion processes in metals and alloys. He proposed two laws, the first for steady-state condition and unidirectional flow of atoms and the second law which deals with time dependence of concentration gradient; and the flow of atoms in all directions. Fick's First Law: Pick's [...]
In this article we will discuss about the general equation for mass transfer. Also learn about equimolal diffusion. General Equation of Mass Diffusion: Consider mass balance of species B diffusing through a control volume (dx × dy × dz) in a solid or stationary fluid medium C. Accumulation of mass of species B in the elemental volume due to its [...]
In this article we will discuss about:- 1. Introduction to Diffusion of Metals 2. Atomic Models of Diffusion of Metals 3. Factors 4. Fick's Laws 5. Homogenisation. Contents: Introduction to Diffusion of Metals Atomic Models of Diffusion of Metals Factors Effecting Diffusion of Metals Fick's Laws of Diffusion of Metals Homogenisation and Diffusion of Metals 1. Introduction to Diffusion of [...]