TY - JOUR
T1 - Numerical simulation for fabrication of C/SiC composites in isothermal CVI reactor
AU - Wei, Xi
AU - Cheng, Laifei
AU - Zhang, Litong
AU - Xu, Yongdong
AU - Zeng, Qingfeng
PY - 2006/12
Y1 - 2006/12
N2 - A two-dimensional mathematical model for fabrication of C/SiC composites in a hot-wall isothermal chemical vapor infiltration reactor was developed. Transport phenomena of momentum, energy and mass in conjunction with infiltration induced changes of preform structure were taken into account. The integrated model was solved by finite element method to numerically simulate flow field, temperature field, concentration field and densification behavior of C/SiC composites at a typical operating condition of isothermal CVI process. Calculated results shows that three different stages exist in densification behavior of C/SiC composites, that is, micro-pores infiltration dominated stage, mixture dominated stage and macro-pores infiltration dominated stage. Favorable agreement is then seen between calculated results and corresponding experimental data which implies that this mathematical model is valid and reasonable to characterize isothermal CVI process of C/SiC composites.
AB - A two-dimensional mathematical model for fabrication of C/SiC composites in a hot-wall isothermal chemical vapor infiltration reactor was developed. Transport phenomena of momentum, energy and mass in conjunction with infiltration induced changes of preform structure were taken into account. The integrated model was solved by finite element method to numerically simulate flow field, temperature field, concentration field and densification behavior of C/SiC composites at a typical operating condition of isothermal CVI process. Calculated results shows that three different stages exist in densification behavior of C/SiC composites, that is, micro-pores infiltration dominated stage, mixture dominated stage and macro-pores infiltration dominated stage. Favorable agreement is then seen between calculated results and corresponding experimental data which implies that this mathematical model is valid and reasonable to characterize isothermal CVI process of C/SiC composites.
KW - C/SiC composites
KW - Densification
KW - Isothermal chemical vapor infiltration
KW - Numerical simulation
UR - https://www.scopus.com/pages/publications/33750474125
U2 - 10.1016/j.commatsci.2006.02.015
DO - 10.1016/j.commatsci.2006.02.015
M3 - 文章
AN - SCOPUS:33750474125
SN - 0927-0256
VL - 38
SP - 245
EP - 255
JO - Computational Materials Science
JF - Computational Materials Science
IS - 2
ER -