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The Application of the X-Ray Surface Forces Apparatus (XSFA) to Studies of Confined Complex Fluid Systems

Published online by Cambridge University Press:  15 February 2011

I. Koltover ,
S. H. J. Idziak ,
C. R. Safinya ,
S. Steinberg ,
J. N. Israelachvili  and
K. S. Liang
I. Koltover
Affiliation:
Materials and Physics Departments, University of California at Santa Barbara, Santa Barbara, CA 93106
S. H. J. Idziak
Affiliation:
Materials and Physics Departments, University of California at Santa Barbara, Santa Barbara, CA 93106
C. R. Safinya
Affiliation:
Materials and Physics Departments, University of California at Santa Barbara, Santa Barbara, CA 93106
S. Steinberg
Affiliation:
Chemical Engineering and Materials Departments, University of California at Santa Barbara, Santa Barbara, CA 93106
J. N. Israelachvili
Affiliation:
Chemical Engineering and Materials Departments, University of California at Santa Barbara, Santa Barbara, CA 93106
K. S. Liang
Affiliation:
Exxon Research and Engineering Co., Annandale, NJ 08801
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Abstract

We report here on the application of the new technique of the X-Ray Surface Forces Apparatus (XSFA) to the study of the smectic liquid crystal 8CB (4-cyano-4′-octylbiphenyl) and a zwitterionic polyisoprene melt. The XSFA allows one to study the structure of fluid films under confinement and flow using intense synchrotron x-ray radiation. The above systems were investigated with the distances between the confining surfaces ranging from 0.4μm to a few tens of microns. Two different kinds of confining surfaces were used leading to different structural behavior of the samples as a function of the confining gap.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 366: Symposium N – Dynamics in Small Confining Systems , 1994 , 101
Copyright
Copyright © Materials Research Society 1995

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