Characterization and Analysis of Carbon Fiber and Nano hBN Reinforced Hybrid Aluminium Metal Matrix Composites by Conventional Sintering
subject: AlMMCs; Hexagonal Boron Nitride; Hybrid composite; Nano composite; Powder metallurgy
description: As mono composites focus solely on improving one property at a time, the significance of hybrid composites grows day by day. The incorporation of carbon fiber (CF) and nano hexagonal boron nitride (hBN) particles as reinforcement for Aluminium has gained significant popularity because of their superior properties. In this work, the AA 7050 is reinforced with carbon fiber and nano hBN and fabricated by powder metallurgy method. To achieve an effective nanoparticle distribution in the matrix, premixing of the particles was done. The reinforcements were effectively dispersed by ball milling, and the composite was created using a traditional powder metallurgy. Dispersion of the particles in the matrix was analyzed by optical microscope. The effect of adding reinforcement to the matrix was investigated using properties such as micro hardness and compression test, and wear characterization. A significant increase in mechanical and wear properties was achieved for the combination of 0.25 wt. % carbon fiber and 0.5 wt. % hBN addition due to the uniform dispersion of nano particles along with the carbon fiber presence. The microhardness, compressive strength and wear rate is improved by 33%, 66% and 54 % respectively than the bare alloy. This study provides insight into the importance of hybrid Aluminium nano composites for high strength applications. Author(s) 2024.
creator: Menachery, Nice; Deepanraj, B.; Thomas, Shijo
source: Turkish Journal of Engineering;Volume;9;Issue;2;pp.378-384
publisher: Murat Yakar
date: 01-01-2025
rights: All Open Access; Gold Open Access; Green Open Access
relation: ISSN: 25871366;
format: online
language: English
type: Article
coverage: Menachery N., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bangalore, India; Deepanraj B., Department of Mechanical Engineering, Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia; Thomas S., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bangalore, India