فهرست نشریات علمی دسترسی آزاد ایران

 This study shows a comprehensive materials science investigation into the development and characterization of novel composite ceramics for application in high-performance athletic equipment, specifically designed for throwing sports. Moving beyond traditional materials, this research focuses on a Zirconia-Toughened Alumina (ZTA) composite system, engineered to emulate the biomechanical principles of the human kinetic chain—specifically, the efficient transfer and dissipation of energy. The composite powders were synthesized via a sol-gel process and consolidated through Spark Plasma Sintering (SPS) to achieve a fine-grained, high-density microstructure. A suite of characterization techniques, including X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), confirmed the successful integration of the tetragonal zirconia phase within the alumina matrix. Mechanical testing revealed exceptional properties, with a Vickers hardness of 22 GPa, a fracture toughness (KIC) of 8.5 MPa·m¹/², and a flexural strength of 1200 MPa. Finite Element Analysis (FEA) simulating the stress distribution during a throwing motion demonstrated that equipment components fabricated from this ZTA composite experienced 40% lower peak tensile stresses and a more uniform stress distribution compared to conventional alumina. The material's high damping capacity, quantified by Dynamic Mechanical Analysis (DMA), was identified as a key factor in mitigating stress waves, a property directly linked to reducing vibration feedback to the athlete and potential injury risk. This article shows a fundamental proof-of-concept, demonstrating that the strategic design of composite ceramics, inspired by biomechanical principles for sport approaches, can yield a new class of materials with tailored properties for enhancing sports athletic performance and equipment safety. This study pioneers a biomechanically-inspired composite ceramic for athletic equipment. Its superior toughness and damping capacity, proven via materials analysis and simulation, significantly reduce operational stress and vibration transmission. This shows a direct pathway to enhanced sport injury prevention by optimizing equipment-athlete interaction.