Multi-scaled Bio-Composite Fabrication via Spatially Graded Particles


Kandemir A. Ç. (Yürütücü), Sajid A., Rafiq T., Khan M. A.

Yükseköğretim Kurumları Destekli Proje, 2023 - 2024

  • Proje Türü: Yükseköğretim Kurumları Destekli Proje
  • Başlama Tarihi: Eylül 2023
  • Bitiş Tarihi: Ağustos 2024

Proje Özeti

This study involves the production of a bioinspired hierarchical composite fabricated by a multi-scaled approach by combining two different length scales. Firstly, a biocompatible nanocomposite is to be produced on a macro scale. Secondly, a micro-scaled nanocomposite coating is going to be built on top of it, which will have a spatially gradient particle distribution. This design imitates biological systems in Nature that use spatially graded composites to connect mechanically distinct entities, such as bone

and cartilage, resulting in a gradual change in elastic modulus, which reduces stress concentration. As it is revealed in the previous study of the project proposer, by adjusting the particle concentration in the gradient coating, the elastic modulus and hardness can be changed by two and one order of magnitudes, respectively. The resulting hierarchical composite, could consist of a tough/ductile macro interior component and a strong/stiff micro coating, which deforms only elastically, achieving a balance between the mutually exclusive properties of toughness and strength. In this study it is aimed to unveil the effects of particle concentration and thickness of each layer inmechanical properties of the hierarchical composite. Both experimental and numerical analyses are going to be conducted to find the optimum parameters. The outcomes will be novel and unprecedented in composite research, since this hierarchical composite design first created by the project proposer and there is no similar study in the literature.