X-ray Scattering Measurements of Helium Adsorption into Silica Aerogel

L. B. Lurio; N. Mulders; M. Paetkau; M. Lee; S. G.J. Mochri; M. H.W. Chan

doi:10.1023/a:1017563411026

X-ray Scattering Measurements of Helium Adsorption into Silica Aerogel

L. B. Lurio, N. Mulders, M. Paetkau, M. Lee, S. G.J. Mochri, M. H.W. Chan

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11 Citations (SciVal)

Abstract

We have performed simultaneous adsorption isotherm and small angle x-ray scattering (SAXS) measurements of ⁴He adsorption into 98% porous aerogel at 3.5K. Measurements indicate a two phase coexistence at vapor pressures slightly below the bulk liquid-vapor equilibrium point. SAXS data are interpreted according to a model which consists of the coexistence of a film phase where the aerogel strands are coated with a liquid film and a filled-pore phase were the pores defined by neighboring strands are filled with liquid.

Original language	English (US)
Pages (from-to)	591-596
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	121
Issue number	5-6
DOIs	https://doi.org/10.1023/a:1017563411026
State	Published - 2000

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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abstract = "We have performed simultaneous adsorption isotherm and small angle x-ray scattering (SAXS) measurements of 4He adsorption into 98% porous aerogel at 3.5K. Measurements indicate a two phase coexistence at vapor pressures slightly below the bulk liquid-vapor equilibrium point. SAXS data are interpreted according to a model which consists of the coexistence of a film phase where the aerogel strands are coated with a liquid film and a filled-pore phase were the pores defined by neighboring strands are filled with liquid.",

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AU - Lurio, L. B.

AU - Mulders, N.

AU - Paetkau, M.

AU - Lee, M.

AU - Mochri, S. G.J.

AU - Chan, M. H.W.

PY - 2000

Y1 - 2000

N2 - We have performed simultaneous adsorption isotherm and small angle x-ray scattering (SAXS) measurements of 4He adsorption into 98% porous aerogel at 3.5K. Measurements indicate a two phase coexistence at vapor pressures slightly below the bulk liquid-vapor equilibrium point. SAXS data are interpreted according to a model which consists of the coexistence of a film phase where the aerogel strands are coated with a liquid film and a filled-pore phase were the pores defined by neighboring strands are filled with liquid.

AB - We have performed simultaneous adsorption isotherm and small angle x-ray scattering (SAXS) measurements of 4He adsorption into 98% porous aerogel at 3.5K. Measurements indicate a two phase coexistence at vapor pressures slightly below the bulk liquid-vapor equilibrium point. SAXS data are interpreted according to a model which consists of the coexistence of a film phase where the aerogel strands are coated with a liquid film and a filled-pore phase were the pores defined by neighboring strands are filled with liquid.

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

X-ray Scattering Measurements of Helium Adsorption into Silica Aerogel

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