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Träfflista för sökning "WFRF:(Suga H.) srt2:(1994)"

Sökning: WFRF:(Suga H.) > (1994)

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1.
  • Andersson, Ove, et al. (författare)
  • Thermal conductivity of low-density amorphous ice
  • 1994
  • Ingår i: Solid State Communications. - : Elsevier. - 0038-1098 .- 1879-2766. ; 91:12, s. 985-988
  • Tidskriftsartikel (refereegranskat)abstract
    • The thermal conductivity λ of low-density amorphous ice was measured using the transient hot-wire method in the temperature range 70–135 K at a pressure of 0.1 GPa. The amorphous state was formed at 135 K by pressurising hexagonal ice up to about 1 GPa. The results for λ are roughly temperature and pressure independent and in magnitude about 0.6 W m−1 K−1, which is roughly equal to λ for water. These results for λ of amorphous ice are several orders of magnitude larger than those reported recently for a specimen prepared by a vapour deposition technique.
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2.
  • Andersson, Ove, et al. (författare)
  • Thermal conductivity of the Ih and XI phases of ice
  • 1994
  • Ingår i: Physical Review B Condensed Matter. - : American Physical Society. - 0163-1829 .- 1095-3795. ; 50:10, s. 6583-6588
  • Tidskriftsartikel (refereegranskat)abstract
    • The thermal conductivity λ of KOH-doped ice was measured using the transient hot-wire method at temperatures in the range 55–250 K and at pressures up to 0.15 GPa. With an isobaric increase of temperature at 0.08 GPa, λ decreased 17% at about 74 K. This decrease is associated with the known transition from ordered phase XI to phase Ih which exhibits orientational disorder of H2O. A model for λ indicates that the decrease of λ at the transition is due to an increase of the lattice anharmonicity which might be caused by the disorder in phase Ih. It was inferred from the temperature dependence of λ that phonon scattering in both phases Ih and XI is dominated by three phonon umklapp processes. At 58 K, λ of supercooled phase Ih decreased slightly with increasing pressure whereas λ of phase XI was independent of pressure.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
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Andersson, Ove (2)
Suga, H. (2)
Lärosäte
Umeå universitet (2)
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Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)
År
1994 (2)Ta bort avgränsningen

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