Grain Growth: A Macroscopic and Atomic Perspective,Describe phenomenon of grain growth from both macroscopic and atomic perspectives

Grain Growth: A Macroscopic and Atomic Perspective

Grain growth is a phenomenon that is seen in many materials, from metals to ceramics, and is a result of the movement of atoms within a material. From a macroscopic perspective, grain growth is the process of crystal grains within a material increasing in size and becoming more uniform in shape. This process is driven by thermal energy, and as the material is heated, the atoms gain higher levels of kinetic energy. This allows for the diffusion of atoms to occur, resulting in the growth of the crystal grains (Kumar et al., 2016). At an atomic level, grain growth occurs due to the motion of atoms and grain boundaries within the material. As the atoms gain more energy, they move more freely and are able to diffuse across grain boundaries. This movement of atoms results in the grains changing shape and size, as the atoms move to fill in the gaps between the grains. As the atoms diffuse, the grains become larger and more uniform in. Cont…

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