Porous structure of thick fiber webs
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© 1997 AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the authors and the American Institute of Physics. The following article appeared in Journal of Applied Physics. Volume 81, Issue 9 and may be found at http://scitation.aip.org/content/aip/journal/jap/81/9/10.1063/1.364423.
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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6425-6431
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Journal of Applied Physics, Volume 81, Issue 9
Abstract
The bulk properties and stochastic pore geometry of finite-thickness fiber webs are studied using a realistic model for the sedimentation of flexible fibers [K. J. Niskanen and M. J. Alava, Phys. Rev. Lett. 73, 3475 (1994)]. The resulting web structure is controlled by a dimensionless number F=Tfwf/tf, where Tf is fiber flexibility, wf fiber width, and tf fiber thickness. The fiber length (≫wf,tf) is irrelevant. With increasing coverage c̄, a crossover occurs at c̄=c0≈1+2F from a vacancy-controlled two-dimensional (2D) structure to a pore-controlled 3D structure. The 3D structures are isomorphic in that the pore dimensions are exponentially distributed, with the decay rate dependent only on F.Description
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Hellén, E. K. O. & Alava, Mikko J. & Niskanen, K. J. 1997. Porous structure of thick fiber webs. Journal of Applied Physics. Volume 81, Issue 9. 6425-6431. ISSN 0021-8979 (printed). DOI: 10.1063/1.364423.