TY - JOUR

T1 - Local Stresses in a Spherical Slit with Dispersion Interactions

AU - Brodskaya, E. N.

AU - Rusanov, A. I.

N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd.

PY - 2021/7

Y1 - 2021/7

N2 - Abstract: The Irving–Kirkwood stress tensor has been calculated in a spherical slit inside an amorphous solid, with the slit simulating an adsorbate-containing spherical pore in an adsorbent. Both normal and tangential components of the stress tensor have been calculated. Although their local variations are similar, the normal component is about two times higher than the tangential one. At a preset slit width, the stress tensor components take different values on the surfaces bounding the slit, and the absolute values of the components on a nanoparticle surface are higher than those on a macrophase surface. The contribution of an empty cavity to the stresses of a spherical film has been estimated to be insignificant. The disjoining pressure of the spherical slit has been calculated and compared with that in a plane-parallel slit. The average difference between the two functions is approximately 20%. It is seen that the slit curvature leads to an increase in the absolute value of the disjoining pressure along the entire slit.

AB - Abstract: The Irving–Kirkwood stress tensor has been calculated in a spherical slit inside an amorphous solid, with the slit simulating an adsorbate-containing spherical pore in an adsorbent. Both normal and tangential components of the stress tensor have been calculated. Although their local variations are similar, the normal component is about two times higher than the tangential one. At a preset slit width, the stress tensor components take different values on the surfaces bounding the slit, and the absolute values of the components on a nanoparticle surface are higher than those on a macrophase surface. The contribution of an empty cavity to the stresses of a spherical film has been estimated to be insignificant. The disjoining pressure of the spherical slit has been calculated and compared with that in a plane-parallel slit. The average difference between the two functions is approximately 20%. It is seen that the slit curvature leads to an increase in the absolute value of the disjoining pressure along the entire slit.

UR - http://www.scopus.com/inward/record.url?scp=85112728620&partnerID=8YFLogxK

U2 - 10.1134/S1061933X21040025

DO - 10.1134/S1061933X21040025

M3 - Article

AN - SCOPUS:85112728620

VL - 83

SP - 399

EP - 405

JO - Colloid Journal

JF - Colloid Journal

SN - 1061-933X

IS - 4

ER -