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Crystallographic defects

https://en.wikipedia.org/wiki/Crystallographic_defect

Crystalline solids exhibit a periodic crystal structure. The positions of atoms or molecules occur on repeating fixed distances, determined by the unit cell parameters. However, the arrangement of atoms or molecules in most crystalline materials is not perfect. The regular patterns are interrupted by crystallographic defects.

Three-dimensional macroscopic or bulk defects,
such as pores, cracks, inclusions


cracks

high-magnification optical micrograph showing intergranular cracks with characteristic
manganese sulfideĀ and oxide inclusions in the crack path of a section
across the radial cracks in the heat-treated part
Hydrogen Embrittlement Cracking in a Batch of Steel Forgings


defect

cracks and inclusions bulk defects in 3d, created via BLC Blender addon


inclusions-1

inclusions-2

the diamond seed from a diamond grinding wheel in 3d (10000000:1cm), bulk defect – inclusions, created via BLC Blender addon


disk

diamond grinding wheel


the diamond seed from a diamond grinding wheel video, created via BLC Blender addon


lamellar

atomic steps planar defect post-effect


steps

atomic steps, planar defect, microscopy-analysis.com


lamellar-defect

steps between atomically flat terraces, planar defect in 3d, created via BLC Blender addon


lamellar

steps between atomically flat terraces, planar defect in 3d, created via BLC Blender addon


voids

voids, bulk defects


void

flat void and octahedron void, bulk defects in 3d, created via BLC Blender addon