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Grain growth
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<p>In <a href="/facts/Materials_science/N5HrXRYW">materials science</a>, grain growth is the increase in size of grains (<a href="/facts/Crystallite/nXSgR0wp">crystallites</a>) in a material at high temperature. This occurs when <a href="/facts/Recovery_(metallurgy)/FGQjfGfl">recovery</a> and <a href="/facts/Recrystallization_(metallurgy)/ESt060Ib">recrystallisation</a> are complete and further reduction in the internal energy can only be achieved by reducing the total area of <a href="/facts/Grain_boundary/3r6klMTy">grain boundary</a>. The term is commonly used in <a href="/facts/Metallurgy/1SANyxX4">metallurgy</a> but is also used in reference to <a href="/facts/Ceramics/9JKudpqX">ceramics</a> and <a href="/facts/Minerals/LkUFbNmv">minerals</a>. The behaviors of grain growth is analogous to the coarsening behaviors of grains, which implied that both of grain growth and coarsening may be dominated by the same physical mechanism. </p>