Structural width of low-angle grain boundaries in olivine

D. L. Ricoult, D. L. Kohlstedt

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


Electron diffraction and imaging techniques have been used to examine the structure and thickness of low-angle grain boundaries in olivine. For edge-on grain boundaries, a periodic array of dislocations in a boundary gives rise to sets of periodic rods of diffracted intensity that are recorded as streaks in the diffraction pattern. The length of these streaks provides a measure of the structural width of a boundary. For olivine, the structural width of a boundary with a given dislocation spacing is three to four times smaller than that in metals where the boundary width is approximately equal to the spacing between dislocations in the boundary.

Original languageEnglish (US)
Pages (from-to)133-138
Number of pages6
JournalPhysics and Chemistry of Minerals
Issue number3-4
StatePublished - Mar 1983


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