Superplasticity Owing to Grain Growth in Polar Ices
نویسندگان
چکیده
منابع مشابه
Deformation of grain boundaries in polar ice
– The ice microstructure (grain boundaries) is a key feature used to study ice evolution and to investigate past climatic changes. We studied a deep ice core, in Dome Concordia, Antarctica, which records past mechanical deformations. We measured a “texture tensor” which characterizes the pattern geometry and reveals local heterogeneities of deformation along the core. These results question key...
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Micrograin Superplasticity refers to the ability of fine-grained materials (1 µm < d < 10 μm, where d is the grain size) to exhibit extensive neck-free elongations during deformation at elevated temperatures. Over the past three decades, good progress has been made in rationalizing this phenomenon. The present paper provides a brief review on this progress in several areas that have been relate...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1985
ISSN: 0022-1430,1727-5652
DOI: 10.1017/s0022143000005001