Characterization of heat-treated rice husk Si₃N₄ bioceramic on cellulosic corn husk fiber-polyester composite

This study investigates the synergistic effects of incorporating heat-treated rice husk Si₃N₄ bioceramic and corn husk fibers in high-content cellulosic corn husk fiber-polyester composites (E0 to E4). Mechanical, flammability, and fatigue properties are comprehensively analyzed. Tensile strength and modulus exhibit significant improvements, showcasing Si₃N₄’s positive impact. Flexural properties demonstrate synergies between Si₃N₄ and corn husk fibers. SEM analysis validates reinforcing mechanisms, emphasizing improved matrix adhesion and toughened matrices. Impact strength, hardness, wear resistance, and flame resistance all show positive trends, highlighting Si₃N₄’s pivotal role in enhancing these properties. Tensile creep analysis indicates Si₃N₄’s influence in minimizing deformation over time. Fatigue performance reflects the synergistic effects of corn husk fibers and Si₃N₄. Overall, these composites demonstrate enhanced mechanical strength, durability, and flame resistance, suggesting their potential for diverse applications requiring superior material properties. The study provides valuable insights into the multifaceted improvements achievable through the strategic combination of heat-treated Si₃N₄ and natural fiber in composite materials, offering a promising avenue for advanced material development with applications in drones, automotives, aviation, and radomes.