interstitial atom

interstitial atom

[¦in·tər¦stish·əl ′ad·əm]
(crystallography)
A displaced atom which is forced into a nonequilibrium site within a crystal lattice.
References in periodicals archive ?
If the interstitial atom does not "wait" to be taken by a network trouble (vacancy, granule limit, dislocation) for jump, the diffusion coefficient can be relative big (Voiculescu, 2005).
The editors have organized the contributions that make up the main body of the text in seven chapters devoted to the heat of trasport in solids, surface hardening of titanium alloys by diffusion of interstitial atoms, and a wide variety of other related subjects.
On the shorter timescales, radiation-damaged materials underwent a "loading" process at the grain boundaries, in which interstitial atoms became trapped-or loaded-into the grain oundary.