DISLOCATION

Dislocation

In materials science, a dislocation is a crystallographic defect, or irregularity, within a crystal structure. The presence of dislocations strongly influences many of the properties of materials. The theory describing the elastic fields of the defects was originally developed by Vito Volterra in 1907, but the term 'dislocation' to refer to a defect on the atomic scale was coined by G. I. Taylor in 1934. Some types of dislocations can be visualized as being caused by the termination of a plane of atoms in the middle of a crystal. In such a case, the surrounding planes are not straight, but they instead bend around the edge of the terminating plane so that the ...

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dislocation

Noun

  1. The act of displacing, or the state of being displaced.
  2. The displacement of parts of rocks or portions of strata from the situation which they originally occupied. Slips, faults, and the like, are dislocations.
  3. The act of dislocating, or putting out of joint; also, the condition of being thus displaced.
  4. (materials) A linear defect in a crystal lattice. Because dislocations can shift within the crystal lattice, they tend to weaken the material, compared to a perfect crystal.


The above text is a snippet from Wiktionary: dislocation
and as such is available under the Creative Commons Attribution/Share-Alike License.

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