Autodiffusion in Metals

This lecture covers the topic of autodiffusion in metals, focusing on the influence of temperature and pressure, empirical correlations, and autodiffusion in different metal structures such as cubic face centered, hexagonal compact, and cubic centered. The instructor discusses the movement of atoms, the formation and migration of defects, and provides examples like ceramic sintering. The lecture also delves into the quantification of diffusion coefficients, the effect of temperature on diffusion, and the correlation between diffusion and crystal structures. Various intrinsic defects in solids and deviations from Arrhenius' law are explored, along with the impact of pressure on diffusion. The lecture concludes with a discussion on the energy balance in thermal diffusion and empirical correlations for diffusion in different crystal structures.