CSL/DSC Lattice model for general crystalcrystal boundaries and their line defects

R. W. Balluffi*, A. Brokman, A. H. King

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

297 Scopus citations

Abstract

The general CSL/DSC Lattice model for internal boundaries in crystalline materials is described. The model is essentially a 'fit-misfit' model in which the regions of 'fit' are patches where partial lattice matching across the boundary is achieved and the regions of 'misfit' are boundary line defects possessing dislocation/boundary step character. The degree of 'fit' is effectively measured by the size of an appropriately chosen Coincidence Site Lattice (CSL) formed by the two lattices adjoining the boundary. The Burgers vectors of the line defects are vectors of an appropriately chosen DSC Lattice also formed by the two lattices adjoining the boundary, while the step vectors describing the step character are defined within the framework of the DSC Lattice. The model is extremely general and may be applied to grain boundaries in both cubic and non-cubic materials and interphase boundaries. Applications of the model to a variety of experimental results involving grain boundaries and interphase boundaries are discussed. Some general assessment of the current status of the model is attempted.

Original languageEnglish
Pages (from-to)1453-1470
Number of pages18
JournalActa Metallurgica
Volume30
Issue number8
DOIs
StatePublished - Aug 1982
Externally publishedYes

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