Effects of insoluble particles on grain growth in polycrystalline ice

Implications for rheology of ice shells of icy satellites

Tomoaki Kubo, Hiroyoshi Nakata, Takumi Kato

研究成果: ジャーナルへの寄稿レター

4 引用 (Scopus)

抄録

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.

元の言語英語
ページ(範囲)301-306
ページ数6
ジャーナルJournal of Mineralogical and Petrological Sciences
104
発行部数5
DOI
出版物ステータス出版済み - 10 1 2009

Fingerprint

icy satellites
rheology
ice
shell
viscosity
grain size
silicate
particle size
dust
silicates
particle
effect

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geology

これを引用

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.

:: Journal of Mineralogical and Petrological Sciences, 巻 104, 番号 5, 01.10.2009, p. 301-306.

研究成果: ジャーナルへの寄稿レター

@article{5088107812ee49ba8a8d8c1f98f795a3,
title = "Effects of insoluble particles on grain growth in polycrystalline ice: Implications for rheology of ice shells of icy satellites",
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.",
author = "Tomoaki Kubo and Hiroyoshi Nakata and Takumi Kato",
year = "2009",
month = "10",
day = "1",
doi = "10.2465/jmps.090622e",
language = "English",
volume = "104",
pages = "301--306",
journal = "Journal of Mineralogical and Petrological Sciences",
issn = "1345-6296",
publisher = "Tohoku University",
number = "5",

}

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

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 -