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

Fan, Sheng; Hager, Travis F.; Prior, David J.; Cross, Andrew J.; Goldsby, David L.; Qi, Chao; Negrini, Marianne; Wheeler, John

doi:https://doi.org/10.5194/tc-14-3875-2020

Articles | Volume 14, issue 11

https://doi.org/10.5194/tc-14-3875-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-3875-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 11

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, Travis F. Hager, David J. Prior, Andrew J. Cross, David L. Goldsby, Chao Qi, Marianne Negrini, and John Wheeler

Supplement

https://doi.org/10.5194/tc-14-3875-2020-supplement

Data sets

EBSD data sets for "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, Travis Hager, David J. Prior, Andrew J. Cross, David L. Goldsby, Chao Qi, Marianne Negrini, John Wheeler https://doi.org/10.6084/m9.figshare.12980243

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.