Mechanical Behavior of Plain-Woven SiC/SiC at Room Temperature

Ceramic matrix composites (CMCs) represent a critical class of advanced structural materials, widely regarded as essential for high-temperature components in next-generation aerospace propulsion systems. CMCs are applied to high-temperature engine components and require extensive test verification and theoretical analysis at the levels of complete machines, components, simulation parts, and samples to ensure that it has a continuous load-bearing capacity in the engine’s working environment and service life, and no catastrophic damage occurs. To meet the design requirements of long-life service of CMCs in high-temperature engine components, it is inevitable that CMC materials/components have long-life characteristics. The accumulation of data and understanding of the mechanism of CMCs under typical service loads are the basic prerequisites for achieving the above goals. Therefore, this chapter conducts research on the basic mechanical properties and performance of standard samples of SiCf/SiC composites for future aero engines, revealing the failure and failure mechanism of material/structural feature parts, and providing mechanism and data support for the structural load analysis and strength check of CMCs.