The ceramic composites with their extraordinary properties at high temperatures, are widely used in various fields. SiC ceramic reinforced with carbon fiber is considered as one of the most widely used of this kashida; TEXT-ALIGN: justify; TEXT-KASHIDA: 0%; TEXT-INDENT: 14.2pt; MARGIN: 0cm 0cm 0pt; unicode-bidi: embed; DIRECTION: ltr; mso-layout-grid-align: none" This method is the best method for the production of ceramic matrix composites because it produce a more uniform ceramic. In this study, different methods of producing ceramic matrix composites are explained and then CVI method is described in detail because there is no Farsi reference on the production of CMCs. After that, relations and parameters of CVI processes described and then an isobaric-isothermal CVI process which had previously simulated by Wei et al, is simulated by the use of CFD based on finite element method with new process parameters such as effective surface area and diffusion tortuosity factor that has been achieved in recent years and the results were compared with experimental results that were presented by them. After that the effect of temperature and pressure variation on infiltration process is examined and finally a new deposition method and chemical infiltration process is proposed which is analyzed by CFD simulation and the advantages of new method is examined. Keywords: ceramic matrix composites; CVI ; CFD; C/SiC ; FEM; simulation
