Fabrication and Materials Evaluation of High Performance Aligned Ceramic Fibre Reinforced Glass Matrix Composite

摘要

Techniques were developed to fabricate aligned, continuous SiC fiber reinforced Pyrex composites. The processing route followed was the formation of the pre-preg sheet by slurry impregnation and filament winding of continuous fiber tows and subsequent consolidation by hot pressing. The high strength and toughness resulting from this process was retained up to 500 C, above which the matrix began to soften and composite deformation occurred. At 500 C the creep rate, with applied stress of 300 MPa, was 2 x 10 (-7) h (-1). Specimens survived loading to 500 MPa for 1000 hours at 500 C in air. Subsequent testing to failure at room temperature indicated that no significant degradation had occurred.