Mathematical Modeling of the Actual Infiltration Process for the Preparation of C/C Composites

Gui Yung Chung, Dong Geun Hwang, Sung Soo Hong

Department of Chemical Engineering, Hong-Ik University, Seoul, Korea.

DOI: 10.4236/eng.2012.412A117                

Abstract

The mathematical modeling for the preparation of C/C composites from propane by F-CVI (Forced-flow Chemical Vapor Infiltration) was studied. The modeling for the actual processes including overturning the preform in the middle of the deposition process was carried out. Effects of the interval and the number of overturning processes on the time changes of porosity distribution were observed. The actual deposition process could be continued longer by overturning the preform. Furthermore, the total amount of deposition increased twice when several times of overturning were applied. It was confirmed that a low concentration and a slow reaction rate are necessary for a uniform infiltration even when the preform is overturned in the middle of the process.

Keywords

Numerical Modeling; C/C Composites; CVI; Overturning; Propane

Conflicts of Interest

The authors declare no conflicts of interest.

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