The effect of titanium dioxide coated carbon fibers on the aluminum alloy matrix composite strength

International Workshop "Advanced Technologies in Material Science, Mechanical and Automation Engineering – MIP: Engineering – 2019"

材料科学;机械制造;原子能学

Gomzin, A.I.^1 ; Gallyamova, R.F.^1^2 ; Galyshev, S.N.^3 ; Paramonov, R.M.^1 ; Zaripov, N.G.^1 ; Musin, F.F.^2

Department of Material Science and Metal Physics, Ufa State Aviation Technical University, Ufa, Russia^1

Ufa Chemistry Institute of RAS, Ufa, Russia^2

Institute of Solid State Physics of RAS, Chernogolovka, Moscow distr., Russia^3

关键词: Aluminum alloy matrices;    Barrier coatings;    Cf/al composites;    Liquid phase infiltration;    Micro-structural;    Protective properties;    Reinforcing components;    Three point bending;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/537/2/022057/pdf
DOI  :  10.1088/1757-899X/537/2/022057

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work the possibility of using TiO2 coating as a barrier between carbon fiber and an aluminum matrix in a Cf/Al composite was studied. Specimens of a composite with a matrix of Al-6Mg alloy were obtained by the method of liquid-phase infiltration under pressure. As a reinforcing component was used continuous uncoated and titanium dioxide coated carbon fibers. TiO2 coating on carbon fiber preform were prepared by sol-gel method. The protective properties of the coating and the mechanical properties of the composite at three-point bending were evaluated. Microstructural and fractographic analyzes were performed. It was established that the barrier coating made it possible to increase the strength of the composite more than 2.5 times from 250 MPa to 660 MPa.