Influence of SiC coating thickness on mechanical properties of SiCf/SiC composite

Mechanical properties of SiCf/SiC composites with alternating PyC/BN multilayer interfaces

“…Silicon carbide fibres-reinforced silicon carbide matrix (SiC f /SiC) composites exhibit numerous advantages as high temperature structural materials in aerospace for their excellent performance and outstanding properties, including low density, high resistance against oxidation, high specific strength/modulus and stability at high temperature. Moreover, SiC f /SiC composites are also promising candidate materials for applications in fusion energy systems due to their corrosion resistance, low induced radioactivity, rapid decay of activity and low afterheat [1][2][3][4].…”

Interfacial Fracture Behavior and Adhesive Strength in Tensile and Shear Loading of SiC-PyC-SiC Composites by Micro-Scale Specimens

“…One important topic in composites deals with the understanding of fracture mechanisms and fracture behavior [14]. The effectiveness of the pyrolytic carbon (PyC) or boron nitride (BN) layer in CFMC is a central key for the ability of the composite to withstand overall failure [15,16]. Fracture across the interlayer and fibers is "desired" since crack deflection leads to energy dissipation in the material.…”

Fabrication and properties of SiCnw‐reinforced SiC composites by reactive melt infiltration with BN and PyC interface

“…Besides reinforcements, the interface between reinforcements and matrix is believed to play a vital role in enhancing mechanical properties of the CMC by deflecting the internal cracks, transferring the load to the reinforcement, and reducing residual stress. [20][21][22][23] In order to meet the previous requirements, the interface materials for CMC are considered should have a layered structure, 24 for example, PyC and h-BN. Zhang et al 25 studied the mechanical properties of SiC fibers with and without PyC interfaces under different annealing conditions and the results showed that the tensile strength retention of SiC fibers with PyC interfaces was 15.9% higher than that without interfaces.…”

“…Besides reinforcements, the interface between reinforcements and matrix is believed to play a vital role in enhancing mechanical properties of the CMC by deflecting the internal cracks, transferring the load to the reinforcement, and reducing residual stress 20–23 . In order to meet the previous requirements, the interface materials for CMC are considered should have a layered structure, 24 for example, PyC and h‐BN.…”