Cottrell atmosphere


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Cottrell atmosphere

[kä¦trel ′at·mə‚sfir]
(solid-state physics)
A cluster of impurity atoms surrounding a dislocation in a crystal.
References in periodicals archive ?
The high tensile load produces plastic flow due to movement of edge dislocation with Cottrell atmosphere such that the edge dislocation separates from the enclosed interstitial solutes.
The results showed an area shaped like a tube that was rich in boron atoms--a Cottrell atmosphere surrounding a dislocation.
Now, for the first time, scientists have obtained three-dimensional images of these clouds of additive atoms, known as Cottrell atmospheres.