Geometric Models for Isotropic Random Porous Media: A Review
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-30
Country of Publication
Egypt
No. of Pages
16
Abstract EN
Models for random porous media are considered.
The models are isotropic both from the local and the macroscopic point of view; that is, the pores have spherical shape or their surface shows piecewise spherical curvature, and there is no macroscopic gradient of any geometrical feature.
Both closed-pore and open-pore systems are discussed.
The Poisson grain model, the model of hard spheres packing, and the penetrable sphere model are used; variable size distribution of the pores is included.
A parameter is introduced which controls the degree of open-porosity.
Besides systems built up by a single solid phase, models for porous media with the internal surface coated by a second phase are treated.
Volume fraction, surface area, and correlation functions are given explicitly where applicable; otherwise numerical methods for determination are described.
Effective medium theory is applied to calculate physical properties for the models such as isotropic elastic moduli, thermal and electrical conductivity, and static dielectric constant.
The methods presented are exemplified by applications: small-angle scattering of systems showing fractal-like behavior in limited ranges of linear dimension, optimization of nanoporous insulating materials, and improvement of properties of open-pore systems by atomic layer deposition of a second phase on the internal surface.
American Psychological Association (APA)
Hermann, Helmut& Elsner, Antje. 2014. Geometric Models for Isotropic Random Porous Media: A Review. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-1015730
Modern Language Association (MLA)
Hermann, Helmut& Elsner, Antje. Geometric Models for Isotropic Random Porous Media: A Review. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-16.
https://search.emarefa.net/detail/BIM-1015730
American Medical Association (AMA)
Hermann, Helmut& Elsner, Antje. Geometric Models for Isotropic Random Porous Media: A Review. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-1015730
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015730