Tensile Creep of Melt‐Infiltrated SiC/SiC Composites with Unbalanced Sylramic‐iBN Fiber Architectures

The in‐plane creep–rupture behavior at 1315°C was measured in air for melt‐infiltrated SiC/SiC composite panels reinforced by Sylramic‐iBN SiC fibers with unbalanced three dimensional (3D)‐woven and 2D‐braided fiber architectures that displayed a high stress for the onset of through‐thickness matrix cracking at room temperature. It was found that a significant improvement in the creep–rupture behavior at 1315°C was observed, if the primary fiber...