Mechanical properties of ceramic filled aluminum metal matrix composites: An Experimental and Computational analysis

Abstract

With each passing year, new research is being carried out to discover materials with enhanced load-bearing capacity for prostheses and medical equipment. This study deals with the fabrication and mechanical testing of nano-zirconium oxide (n-ZrO2; 0–15 wt.%; at steps of 5%) reinforced Al 6061 prepared via a stir casting process. The effect of n-ZrO2 loading on physical and mechanical properties along with the detailed characterization has been systematically investigated. The density (2.6491–2.6812 g/cc), hardness (85–103 HV), tensile strength (147–227 MPa), tensile modulus (75–99 GPa), flexural strength (312–450 MPa), and impact strength (23–45 J) improved by increasing the wt.% of n-ZrO2 reinforcement particles. Furthermore, representative quantity element-based computational homogenization modeling was used to evaluate physical and mechanical properties. It was found to be in good agreement with the experimental results within a deviation of ~ 5%. The implication of these findings shows that 5 wt.% nano-ZrO2 reinforced Al 6061 composites (Al-ZC1) yielded better performance than pure Al 6061 alloy. This novel and comprehensive similarity throughout the examined properties for intricate microstructures perhaps be beneficial for designing optimum composite structures for prosthetic and orthotic applications.

Caracterización de tintas de cemento de fosfato de calcio con adición de Poloxámero 407 para su posible aplicación en impresión 3D

“…Entre las enfermedades óseas más comunes se encuentran las osteomielitis, el cáncer de hueso y la osteoporosis, siendo esta última la enfermedad que más afecta a la población en el mundo provocando la disminución en la densidad ósea y, por tanto, la cantidad y la calidad del hueso, lo que produce un aumento de la fragilidad ósea y un potencial riesgo de fractura. Este tipo de enfermedad afecta al sexo masculino en edades superiores a los cincuenta años y al sexo femenino durante el periodo de menopausia debido a la reducción de los niveles de estrógenos [2], [3].…”