Abstract
Effects of small volume fractions of insoluble particles on grain growth rates of polycrystalline ice were examined at 270 K. The presence of approximately 1 vol% of insoluble particles significantly inhibits the grain growth, and this inhibition effect strongly depends on the particle size. The observed grain growth behavior of ice can be reasonably interpreted on the basis of the Zener pinning effect. Our preliminary results suggest that low viscosities due to small grain sizes required for convective instability in ice shells of icy satellites are achieved by the presence of very small fractions of fine silicate dust particles.
| Original language | English |
|---|---|
| Pages (from-to) | 301-306 |
| Number of pages | 6 |
| Journal | Journal of Mineralogical and Petrological Sciences |
| Volume | 104 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 1 2009 |
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All Science Journal Classification (ASJC) codes
- Geophysics
- Geology
Cite this
Effects of insoluble particles on grain growth in polycrystalline ice : Implications for rheology of ice shells of icy satellites. / Kubo, Tomoaki; Nakata, Hiroyoshi; Kato, Takumi.
In: Journal of Mineralogical and Petrological Sciences, Vol. 104, No. 5, 01.10.2009, p. 301-306.Research output: Contribution to journal › Letter
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TY - JOUR
T1 - Effects of insoluble particles on grain growth in polycrystalline ice
T2 - Implications for rheology of ice shells of icy satellites
AU - Kubo, Tomoaki
AU - Nakata, Hiroyoshi
AU - Kato, Takumi
PY - 2009/10/1
Y1 - 2009/10/1
N2 - Effects of small volume fractions of insoluble particles on grain growth rates of polycrystalline ice were examined at 270 K. The presence of approximately 1 vol% of insoluble particles significantly inhibits the grain growth, and this inhibition effect strongly depends on the particle size. The observed grain growth behavior of ice can be reasonably interpreted on the basis of the Zener pinning effect. Our preliminary results suggest that low viscosities due to small grain sizes required for convective instability in ice shells of icy satellites are achieved by the presence of very small fractions of fine silicate dust particles.
AB - Effects of small volume fractions of insoluble particles on grain growth rates of polycrystalline ice were examined at 270 K. The presence of approximately 1 vol% of insoluble particles significantly inhibits the grain growth, and this inhibition effect strongly depends on the particle size. The observed grain growth behavior of ice can be reasonably interpreted on the basis of the Zener pinning effect. Our preliminary results suggest that low viscosities due to small grain sizes required for convective instability in ice shells of icy satellites are achieved by the presence of very small fractions of fine silicate dust particles.
UR - http://www.scopus.com/inward/record.url?scp=77749336758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77749336758&partnerID=8YFLogxK
U2 - 10.2465/jmps.090622e
DO - 10.2465/jmps.090622e
M3 - Letter
AN - SCOPUS:77749336758
VL - 104
SP - 301
EP - 306
JO - Journal of Mineralogical and Petrological Sciences
JF - Journal of Mineralogical and Petrological Sciences
SN - 1345-6296
IS - 5
ER -