Home > Blossary: Defects in Materials
Defects determine many properties of materials (those properties that we call "structure sensitive properties"). Even properties like the specific resistance of semiconductors, conductance in ionic crystals or diffusion properties.

Category: Engineering

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Created by: Naveed

Number of Blossarys: 5

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Line defects, or dislocations, are lines along which whole rows of atoms in a solid are arranged anomalously. The resulting irregularity in spacing is most severe along a line called the line of ...

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

Point defects are where an atom is missing or is in an irregular place in the lattice structure. Point defects include self interstitial atoms, interstitial impurity atoms, substitutional atoms and ...

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

Surface defects plastically deform the surface of the material. Surface defects are as follows. cracks , grooves , damages , slags , scabs and corrosion.

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

An intrinsic defect is formed when an atom is missing from a position that ought to be filled in the crystal, creating a vacancy, or when an atom occupies an interstitial site where no atom would ...

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

The extrinsic point defects are foreign atoms, which are called solutes if they are intentionally added to the material and are called impurities if they are not. The foreign atom may occupy a ...

Domain: Materials science; Engineering; Business services; Category: Metallurgy; Mechanical engineering; Education & training

Dislocations in which the Burgers vector is perpendicular to the dislocation line. Dislocations in real crystals rarely have a pure edge character. Their Burgers vectors lie at various angles to ...

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

Dislocations in real materials are most commonly neither pure edge nor pure screw in their character, but are mixed dislocations whose Burgers vectors lie at an intermediate angle to the local ...

Domain: Materials science; Engineering; Category: Metallurgy; Mechanical engineering

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