Thermal Properties and Diffusion

This lecture covers the behavior of materials at high temperatures, including thermal expansion, diffusion of chemical species, and heat diffusion leading to stress. It also discusses the thermal properties of materials, such as the bimetallic strip, and the factors affecting thermal expansion coefficients. The lecture delves into practical examples of diffusion processes, like nitriding and carburizing, to improve material properties. Additionally, it explores the concept of creep in materials under high temperatures, explaining the mechanisms behind creep deformation and the factors influencing it. The instructor provides insights into thermal expansion coefficients, heat flow, and thermomechanical stress calculations.