Extended Defects in Deformed Rutile

M. G. Blanchin, L. A. Bursill, David Smith

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


High‐resolution electron microscopy is used to study the fine structure of extended defects occurring within specimens of mechanically deformed and reduced rutiles (≈ TiO1.9966). These reveal the strong dependence of precipitation phenomena on the precise details of specimen cooling history and on the direction of the compression axis (i.e. [110] or 〈111〉). It is concluded that dislocation dissociation mechanisms play a relatively minor role in deformation mechanisms in reduced rutiles. The fact that applied stress favors occurrence of clusters of small linear defects within the nonstoichiometric phase TiO2−x, at the temperature of deformation, seems necessary to explain the observed defect structures. Thus it appears that plastic deformation of rutile may be achieved directly by the precipitation of extended defects, rather than by traditional dislocation mechanisms.

Original languageEnglish (US)
Pages (from-to)559-570
Number of pages12
Journalphysica status solidi (a)
Issue number2
StatePublished - Jun 16 1985

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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