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A technique for rec...
A technique for recording polycrystalline structure and orientation during in situ deformation cycles of rock analogues using an automated fabric analyser
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- Peternell, Mark, 1974 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Russell-Head, D. S. (author)
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Wilson, C. J L (author)
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(creator_code:org_t)
- 2010-11-17
- 2011
- English.
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In: Journal of Microscopy. - : Wiley. - 0022-2720 .- 1365-2818. ; 242, s. 181-188
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Abstract
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- Two in situ plane-strain deformation experiments on norcamphor and natural ice using synchronous recording of crystal c-axis orientations have been performed with an automated fabric analyser and a newly developed sample press and deformation stage. Without interrupting the deformation experiment, c-axis orientations are determined for each pixel in a 5 × 5 mm sample area at a spatial resolution of 5 μm/pixel. In the case of norcamphor, changes in microstructures and associated crystallographic information, at a strain rate of ∼2 × 10-5 s-1, were recorded for the first time during a complete in situ deformation-cycle experiment that consisted of an annealing, deformation and post-deformation annealing path. In the case of natural ice, slower external strain rates (∼1 × 10-6 s-1) enabled the investigation of small changes in the polycrystal aggregate's crystallography and microstructure for small amounts of strain. The technical setup and first results from the experiments are presented. © 2010 The Authors Journal of Microscopy © 2010 Royal Microscopical Society.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Keyword
- c-axis orientation
- Deformation stage
- Fabric analyser
- Ice
- in situ experiment
- Norcamphor
- Rock analogue
Publication and Content Type
- ref (subject category)
- art (subject category)
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