Preparation and Analytical Electron Microscopy of a SiC Continuous-Fiber Ceramic Composite

摘要

Continuous-fiber-reinforced SiC/SiC-based matrix composite materials, to be used in the first-wail blanket of a fusion reactor, were prepared by the infiltration of SiC cloth with SiC-based suspensions of various chemical compositions. The compositions were tailored with respect to the calculated activation in a fast-neutron flux. Liquid-phase sintering was used for material densiflcation, using different sintering aids, such as A1_2O_3, Y_2O_3, P_2O_5, A1N, etc. The microstructures of the differently prepared materials were studied with scanning and transmission electron microscopy and microanalysis.