Disclinations and disconnections in minerals and metals.
basic_science · Level V
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- Record sourced from PubMed, PMID 31848243.
- Also identified by DOI 10.1073/pnas.1915140117 and PMC identifier 6955374.
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Abstract
A different type of defect, the coherency disclination, is added to disclination types. Disconnections that include disclination content are considered. A criterion is suggested to distinguish disconnections with dislocation content from those with disclination content. Electron microscopy reveals unit disconnections in a low albite grain boundary, defects important in grain boundary sliding. Disconnections of varying step heights are displayed and shown to define both deformed and recovered structures.