Homogenization for chemical vapor infiltration process

2017 ◽  
Vol 15 (4) ◽  
pp. 1021-1040 ◽  
Author(s):  
Changjuan Zhang ◽  
Yun Bai ◽  
Shixin Xu ◽  
Xingye Yue
Keyword(s):  
Chemical Vapor ◽  
Chemical Vapor Infiltration ◽  
Infiltration Process ◽  
Vapor Infiltration

Modeling of pore structure evolution within the fiber bundle during chemical vapor infiltration process

2011 ◽  
Vol 66 (23) ◽  
pp. 5852-5861 ◽  
Author(s):  
Kang Guan ◽  
Laifei Cheng ◽  
Qingfeng Zeng ◽  
Zhi-Qiang Feng ◽  
Litong Zhang ◽  
...  
Keyword(s):  
Pore Structure ◽  
Fiber Bundle ◽  
Chemical Vapor ◽  
Chemical Vapor Infiltration ◽  
Structure Evolution ◽  
Infiltration Process ◽  
Vapor Infiltration

A model for front evolution with a nonlocal growth rate

1999 ◽  
Vol 14 (10) ◽  
pp. 3829-3832 ◽  
Author(s):  
Shi Jin ◽  
Xuelei Wang ◽  
Thomas L. Starr
Keyword(s):  
Chemical Vapor ◽  
Ceramic Matrix Composites ◽  
Front Propagation ◽  
Chemical Vapor Infiltration ◽  
Matrix Composites ◽  
Infiltration Process ◽  
Physical Problems ◽  
Eulerian Formulation ◽  
Continuous Filament ◽  
Vapor Infiltration

In this paper we provide a new mathematical model for front propagation with a nonlocal growth law in any space dimension. Such a problem arises in composite fabrication using the vapor infiltration process and in other physical problems involving transport and reaction. Our model, based on the level set equation coupled with a boundary value problem of the Laplace equation, is an Eulerian formulation, which allows robust treatment for topological changes such as merging and formation of pores without artificially tracking them. When applied to the fabrication of continuous filament ceramic matrix composites using chemical vapor infiltration, this model accurately predicts not only residual porosity but also the precise locations and shapes of all pores.

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