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The Cryosphere An interactive open-access journal of the European Geosciences Union
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We performed uniaxial compression experiments on synthetic ice samples. We report ice microstructural evolution at –20 and –30 °C that has never been reported before. Microstructural data show the opening angle of c-axis cones decreases with increasing strain or with decreasing temperature, suggesting a more active grain rotation. CPO intensity weakens with temperature because CPO of small grains is weaker, and it can be explained by grain boundary sliding or nucleation with random orientations.
TC | Articles | Volume 14, issue 11
The Cryosphere, 14, 3875–3905, 2020
https://doi.org/10.5194/tc-14-3875-2020
The Cryosphere, 14, 3875–3905, 2020
https://doi.org/10.5194/tc-14-3875-2020

Research article 10 Nov 2020

Research article | 10 Nov 2020

Temperature and strain controls on ice deformation mechanisms: insights from the microstructures of samples deformed to progressively higher strains at −10, −20 and −30 °C

Sheng Fan et al.

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Latest update: 18 Jan 2021
Publications Copernicus
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Short summary
We performed uniaxial compression experiments on synthetic ice samples. We report ice microstructural evolution at –20 and –30 °C that has never been reported before. Microstructural data show the opening angle of c-axis cones decreases with increasing strain or with decreasing temperature, suggesting a more active grain rotation. CPO intensity weakens with temperature because CPO of small grains is weaker, and it can be explained by grain boundary sliding or nucleation with random orientations.
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