+A **Grain Boundary** is the subtle seam where two [Crystal](/wiki/crystal) lattices, misaligned, converge within a solid. These narrow interfaces profoundly influence a material's strength, conductivity, and resilience, acting as both barrier and pathway within the [Microstructure](/wiki/microstructure).
+## See also
+- [Dislocation](/wiki/dislocation)
+- [Crystal Structure](/wiki/crystal_structure)
+- [Material Properties](/wiki/material_properties)
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