Dynamic Recrystallization of Ice in Polar Ice Sheets
نویسندگان
چکیده
منابع مشابه
Dynamic Recrystallization of Ice in Polar Ice Sheets
The deformation and recrystallization mechanisms which control the viscoplasticity of ice from polar ice sheets have been investigated. The high plastic anisotropy of ice crystals is responsible for the development of a non uniform internal stress field within the polycrystal. Strain-shadows produced by sub-grain are observed in polarized light when the rotation recrystallization regime is domi...
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We present high resolution observations of microstructure and texture evolution during dynamic recrystallization (DRX) of ice polycrystals deformed in the laboratory at high temperature (≈0.98Tm). Ice possesses a significant viscoplastic anisotropy that induces strong strain heterogeneities, which result in an early occurrence of DRX mechanisms. It is therefore a model material to explore these...
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ژورنال
عنوان ژورنال: Le Journal de Physique IV
سال: 1995
ISSN: 1155-4339
DOI: 10.1051/jp4:1995317