Mechanical properties and slurry erosion resistance of a hybrid composite SiC foam/SiC particles/EP.

A novel hybrid composite SiC foam/SiC particles/EP (denoted as SiCfoam/SiCp/EP), consisting of E‐51 epoxy resin as the matrix, SiC foam and SiC particles as the reinforcements, was prepared in this work. The slurry erosion properties of SiCfoam/SiCp/EP composite and SiCfoam/EP (SiC foam/epoxy resin) composite were investigated by using a rotating disc rig. It was found out that SiCfoam/SiCp/EP exhibited better mechanical and anti‐erosive performance as compared with SiCfoam/EP. SiC particle size had great influence on the mechanical and anti‐erosive properties of the hybrid composites. Smaller SiC particles were beneficial to improve the mechanical strength, but inclined to decrease the anti‐erosive performance of the composite. In general, the hybrid composite SiCfoam/SiCp/EP can be applied potentially with the excellent anti‐erosive performance under the solid particle erosion conditions. POLYM. COMPOS., 39:2277–2286, 2018. © 2018 Society of Plastics Engineers [ABSTRACT FROM AUTHOR]