A hollow-cone dark-field study of interlayer cracks in delaminated HCa2Nan-3 NbnO 3n+1 materials

M. M.J. Treacy, M. E. Bisher, A. J. Jacobson

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We investigate the blister features that appear in small-angle hollow-cone dark-field images of overlapping layers of delaminated calcium niobate. Modelling shows that the blister contrasts are caused by pockets of gas or liquid that have become trapped when calcium niobate layers are brought into contact and reseal. Hollow-cone dark-field contrast is primarily due to diffraction variations caused by sheet bending around the pressurized cracks.

Original languageEnglish (US)
Pages (from-to)161-177
Number of pages17
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Issue number1
StatePublished - Jul 1995
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys


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