Density fluctuations near the liquid-gas critical point of a confined fluid

被引：30

作者：

Melnichenko, YB ^{[1
]}

Wignall, GD

Cole, DR

Frielinghaus, H

机构：

[1] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW E | 2004年 / 69卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.69.057102

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report the results of an experimental study of the effect of a dilute silica network on liquid-gas critical phenomena in carbon dioxide (CO2). Using small-angle neutron scattering, we measured the correlation length of the density fluctuations in bulk (xi(bulk)) and confined CO2 (xi(conf)) as a function of temperature and average fluid density. We find that quenched disorder induced by an aerogel suppresses density fluctuations: xi(conf) loses the Ising model divergence characteristic of xi(bulk) and does not exceed the size of pores in the homogeneous region.

引用

页数：4

共 50 条

[1] SCALING BEHAVIOR OF THE FLUID SUBCLASS NEAR THE LIQUID-GAS CRITICAL-POINT
GARRABOS, Y
[J]. JOURNAL DE PHYSIQUE, 1986, 47 (02): : 197 - 206
[2] TRANSPORT COEFFICIENTS NEAR LIQUID-GAS CRITICAL POINT
KADANOFF, LP
SWIFT, J
[J]. PHYSICAL REVIEW, 1968, 166 (01): : 89 - &
[3] DYNAMIC CRITICAL PHENOMENA NEAR A LIQUID-GAS CRITICAL-POINT
GUROVICH, EV
KATS, EI
LEBEDEV, VV
MURATOV, AR
[J]. JETP LETTERS, 1992, 55 (01) : 57 - 59
[4] THEORY OF DIFFUSION NEAR A LIQUID-GAS AZEOTROPIC CRITICAL POINT
SAAM, WF
[J]. PHYSICS LETTERS A, 1970, A 33 (02) : 99 - &
[5] EFFECT OF GRAVITY NEAR LIQUID-GAS CRITICAL-POINT
BARMATZ, M
HOHENBER.PC
[J]. BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1972, 17 (05): : 660 - &
[6] THERMODYNAMICS OF BINARY SYSTEMS NEAR LIQUID-GAS CRITICAL POINT
SAAM, WF
[J]. PHYSICAL REVIEW A, 1970, 2 (04): : 1461 - &
[7] SOUND ATTENUATION AND DISPERSION NEAR LIQUID-GAS CRITICAL POINT
KAWASAKI, K
[J]. PHYSICAL REVIEW A, 1970, 1 (06): : 1750 - &
[8] LIQUID-GAS CRITICAL-POINT
YUKHNOVSKII, IR
[J]. UKRAINSKII FIZICHESKII ZHURNAL, 1994, 39 (01): : 21 - 34
[9] Anomalies in acoustical properties of mercury near the liquid-gas critical point
Kozhevnikov, V
[J]. FLUID PHASE EQUILIBRIA, 2001, 185 (1-2) : 315 - 325
[10] DIFFUSION IN GASEOUS SOLUTIONS NEAR CRITICAL POINT FOR LIQUID-GAS EQUILIBRIUM
KHAZANOV.NE
LESNEVSK.RS
[J]. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY,USSR, 1966, 40 (01): : 38 - &

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