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

doi:10.1080/01418619508239588

A hollow-cone dark-field study of interlayer cracks in delaminated HCa₂Na_n-3 Nb_nO _3n+1 materials

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

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	161-177
Number of pages	17
Journal	Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume	72
Issue number	1
DOIs	https://doi.org/10.1080/01418619508239588
State	Published - Jul 1995
Externally published	Yes

ASJC Scopus subject areas

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

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10.1080/01418619508239588

Cite this

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

abstract = "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.",

author = "Treacy, {M. M.J.} and Bisher, {M. E.} and Jacobson, {A. J.}",

note = "Funding Information: ACKNOWLEDGMENTS The authors wish to thank J. T. Lewandowski of Exxon Research and Engineering Company, Annandale, New Jersey, for providing some of the samples studied in this work, and A. A. G. Tomlinson for bringing the paper by Wan et al. (1993) to our attention. The Robert A. Welch Foundation provided partial support for this work (A.J.J.).",

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AU - Jacobson, A. J.

N1 - Funding Information: ACKNOWLEDGMENTS The authors wish to thank J. T. Lewandowski of Exxon Research and Engineering Company, Annandale, New Jersey, for providing some of the samples studied in this work, and A. A. G. Tomlinson for bringing the paper by Wan et al. (1993) to our attention. The Robert A. Welch Foundation provided partial support for this work (A.J.J.).

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N2 - 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.

AB - 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.

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A hollow-cone dark-field study of interlayer cracks in delaminated HCa₂Na_n-3 Nb_nO _3n+1 materials

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