SIMULATION OF MANUFACTURING PROCESS OF CERAMIC MATRIX COMPOSITES

摘要

Increasing the operating temperature of aerospace engines requires the use of novel high temperature materials and technologies that will permit their routine manufacture into complex shapes. One of the processes being developed for the manufacture of ceramic matrix composites is reactive melt infiltration. Simulation technologies have been developed to incorporate the complex, multiple, interdependent phenomena that describe this process. Among the phenomena included are unsaturated flow, capillary fluid flow, reaction between the fluid and matrix, volumetric changes associated with the fluid-solid reaction, temperature changes associated with the fluid-solid reaction and the development of residual stresses. The resulting simulation capability provides an accurate analysis of the reactive melt infiltration process that can be used to identify the effect of the interdependent physical phenomena.