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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A vacancy is a lattice position that is vacant because the atom is missing. It is created when the solid is formed. There are other ways of making a vacancy, but they also occur naturally as a result ...

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

Volume defects in crystals are three-dimensional aggregates of atoms or vacancies. It is common to divide them into four classes in an imprecise classification that is based on a combination of the ...

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

A process in which two or more crystals, or parts of crystals, assume orientations such that one may be brought to coincidence with the other by reflection across a plane or by rotation about an ...

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

The two-dimensional defects that appear in crystals can be usefully divided into three types: free surfaces, which are the external surfaces at which the solid terminates at a vapor or liquid, ...

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

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

All crystals whose structures can be described by layers are prone to stacking faults. A stacking fault is any defect that alters the periodic sequence of layers. These defects may be a wrong layer ...

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

Segregation in materials refers to the enrichment of a material constituent at a free surface or an internal interface of a material. In a polycrystalline solid, a segregation site can be a ...

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

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