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A Sans Study of Capillary Condensation in Porous Media

Published online by Cambridge University Press:  21 February 2011

M.Y. Lin ,
S.K. Sinha ,
J.S. Huang ,
B. Abeles ,
J.W. Johnson ,
J.M. Drake  and
C.J. Glinka
M.Y. Lin
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20889 Department of Physics, Princeton University, Princeton, NJ 08544
S.K. Sinha
Affiliation:
Emzon Research and Engineering Co., Rt. 22 E, Annandale, NJ 08801 Brookhaven National Laboratory, Upton, NY 11973
J.S. Huang
Affiliation:
Emzon Research and Engineering Co., Rt. 22 E, Annandale, NJ 08801
B. Abeles
Affiliation:
Emzon Research and Engineering Co., Rt. 22 E, Annandale, NJ 08801
J.W. Johnson
Affiliation:
Emzon Research and Engineering Co., Rt. 22 E, Annandale, NJ 08801
J.M. Drake
Affiliation:
Emzon Research and Engineering Co., Rt. 22 E, Annandale, NJ 08801
C.J. Glinka
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20889
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Abstract

We use small angle neutron scattering (SANS) to study the microstructure of porous Vycor glass and the capillary condensation of fluids in the medium. Using a chord distribution model, we can predict the structure factor measured by SANS. Excellent agreement with the data is obtained. The fitted parameters characterize quantitatively the porous structure before and during the process of condensation, and are in good agreement with isotherm measurements. However, at the latest stages of the process, when all the pores are nearly filled, the model can no longer describe the system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 449
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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