Premium
Modeling of Pore Structure Evolution Between Bundles of Plain Woven Fabrics During Chemical Vapor Infiltration Process: The Influence of Preform Geometry
Author(s) -
Guan Kang,
Cheng Laifei,
Zeng Qingfeng,
Zhang Litong,
Deng Juanli,
Li Kaiyuan,
Li Hui
Publication year - 2013
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12062
Subject(s) - tortuosity , infiltration (hvac) , parametric statistics , materials science , woven fabric , diffusion process , plain weave , diffusion , composite material , mechanics , porosity , geometry , thermodynamics , mathematics , computer science , physics , innovation diffusion , knowledge management , statistics , yarn
A three‐dimensional model combining the nonconservative level set method and the steady‐state diffusion equation is presented for studying evolving pore structure between bundles of plain woven fabrics during chemical vapor infiltration process. Parametric studies have been conducted to determine the sensitivity of the evolution of structural properties and effective gas diffusion coefficients to the geometric parameters of the preform. Based on our results, some analytical expressions are proposed to estimate the evolution of structural properties and the tortuosity. The prediction of the presented models is well consistent with the existing data of experiments.