Abstract
Rheological experiments on fine-grained water ice II at low strain rates reveal a creep mechanism that dominates at conditions of low stress. Using cryogenic scanning electron microscopy, we observed that a change in stress exponent from 5 to 2.5 correlates strongly with a decrease in grain size from about 40 to 6 micrometers. The grain size-sensitive creep of ice II demonstrated here plausibly dominates plastic strain at the low-stress conditions in the interior of medium- to large-sized icy moons of the outer solar system.
| Original language | English |
|---|---|
| Pages (from-to) | 1267-1269 |
| Number of pages | 3 |
| Journal | Science |
| Volume | 311 |
| Issue number | 5765 |
| DOIs | |
| Publication status | Published - Mar 3 2006 |
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All Science Journal Classification (ASJC) codes
- General
Cite this
Grain size-sensitive creep in ice II. / Kubo, Tomoaki; Durham, William B.; Stern, Laura A.; Kirby, Stephen H.
In: Science, Vol. 311, No. 5765, 03.03.2006, p. 1267-1269.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Grain size-sensitive creep in ice II
AU - Kubo, Tomoaki
AU - Durham, William B.
AU - Stern, Laura A.
AU - Kirby, Stephen H.
PY - 2006/3/3
Y1 - 2006/3/3
N2 - Rheological experiments on fine-grained water ice II at low strain rates reveal a creep mechanism that dominates at conditions of low stress. Using cryogenic scanning electron microscopy, we observed that a change in stress exponent from 5 to 2.5 correlates strongly with a decrease in grain size from about 40 to 6 micrometers. The grain size-sensitive creep of ice II demonstrated here plausibly dominates plastic strain at the low-stress conditions in the interior of medium- to large-sized icy moons of the outer solar system.
AB - Rheological experiments on fine-grained water ice II at low strain rates reveal a creep mechanism that dominates at conditions of low stress. Using cryogenic scanning electron microscopy, we observed that a change in stress exponent from 5 to 2.5 correlates strongly with a decrease in grain size from about 40 to 6 micrometers. The grain size-sensitive creep of ice II demonstrated here plausibly dominates plastic strain at the low-stress conditions in the interior of medium- to large-sized icy moons of the outer solar system.
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UR - http://www.scopus.com/inward/citedby.url?scp=33644682683&partnerID=8YFLogxK
U2 - 10.1126/science.1121296
DO - 10.1126/science.1121296
M3 - Article
C2 - 16513977
AN - SCOPUS:33644682683
VL - 311
SP - 1267
EP - 1269
JO - Science
JF - Science
SN - 0036-8075
IS - 5765
ER -