On the Strength of the CF/Al-Wire Depending on the Fabrication Process Parameters: Melt Temperature, Time, Ultrasonic Power, and Thickness of Carbon Fiber Coating

Abstract

The process of the production of a CF/Al-wire by pulling carbon fibers through an aluminum melt has at least 15 parameters. The main parameters include the power of ultrasonic treatment, the time of contact of the fiber with the matrix melt, and the melt temperature. In addition, the presence of a barrier coating on the fiber surface and its thickness significantly affects the properties of the resulting material. The importance of these parameters is due to their direct effect on the chemical interaction between the aluminum matrix and the carbon fiber. This interaction leads to the formation of aluminum carbide, a hygroscopic, brittle phase that ultimately significantly reduces the strength of such composites. In this regard, limiting a chemical reaction at the matrix/fiber interface in the production of CF/Al composites is one of the main technological problems. The main goal of this work is to pragmatically elucidate the effect of the above parameters on the strength of CF/Al composites. It is shown that the strength of a CF/Al-wire can reach 2000 MPa.

On the Pressure and Rate of Infiltration Made by a Carbon Fiber Yarn with an Aluminum Melt during Ultrasonic Treatment

“…The scheme for producing a carbon-aluminum wire was similar to that described in [7,8] (Figure 1). several GPa.…”

“…The scheme for producing a carbon-aluminum wire was similar to that described in [7,8] (Figure 1). From the output coil (1), carbon fiber yarn (2) entered the matrix melt inside the crucible through the inlet die in the wall of the graphite crucible (3).…”

“…This solution is more technologically advanced, and its practical application is the two-stage method. The first stage is to produce a carbon-aluminum wire by drawing a carbon fiber yarn through a matrix melt that has been subjected to ultrasonic treatment [7,8]. In the second stage, a preform is compacted from the wire by hot pressing.…”

“…In the second stage, a preform is compacted from the wire by hot pressing. The advantages of this method are the ability to significantly reduce the time of contact between the matrix melt and the fiber in the first stage [8] and considerably reduce the temperature of obtaining bulk material in the second stage. This significantly reduces the chemical interaction between the matrix and the fiber, ensuring high mechanical properties in the composite.…”

Carbenes trapping on Aluminum-Magnesium surface implanted with Silicon, Germanium, Tin: Promising of semiconductors by molecular modeling approach

“…Therefore, operated organic compounds as corrosion stoppers were chosen and determined on the basis of their physicochemical characteristics [20,21] and relatively little consideration has been dedicated to the quantitative estimation of the internal and steric influence of these compounds upon their inhibition yield. In other works, it has been studied the interaction between imidazole and the aluminum surface which is often employed in experimental researches [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] .…”