The Effect of Tin Content on the Strength of a Carbon Fiber/Al-Sn-Matrix Composite Wire

Abstract

The effect of tin content in an Al-Sn alloy in the range from 0 to 100 at.% on its mechanical properties was studied. An increase in the tin content leads to a monotonic decrease in the microhardness and conditional yield stress of the Al-Sn alloy from 305 to 63 MPa and from 32 to 5 MPa, respectively. In addition, Young’s modulus and the shear modulus of the Al-Sn alloy decreases from 65 to 52 GPa and from 24 to 20 GPa, respectively. The effect of tin content in the Al-Sn matrix alloy in the range from 0 to 50 at.% on the strength of a carbon fiber/aluminum-tin-matrix (CF/Al-Sn) composite wire subject to three-point bending was also investigated. Increasing tin content up to 50 at.% leads to a linear increase in the composite wire strength from 1450 to 2365 MPa, which is due to an increase in the effective fiber strength from 65 to 89 at.%. The addition of tin up to 50 at.% to the matrix alloy leads to the formation of weak boundaries between the matrix and the fiber. An increase in the composite wire strength is accompanied by an increase in the average length of the fibers pulled out at the fracture surface. A qualitative model of the relationship between the above parameters is proposed.

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

“…The fine precipitates had forms including a near-hexagonal network of Ge atoms with sub-cell dimensions a = b ≈ 0.405 nm, c = 0.405 nm which is very identical to the Si network that relates all precipitate constructions in the Al-Mg-Si nanoalloys and its equilibrium phase is β-Mg2Ge corresponds to its phase diagram. In some investigations, the precipitation sequence of Al-Mg-Ge nanoalloys consisting of various components of Mg2Ge has been studied by TEM and HRTEM observation and hardness test for finding the impact of Mg2Ge components on age-hardening treatment of the nanoalloys [68][69][70][71][72] . Moreover, the frequency range of IR spectrum for each compounds in Scheme 1 has been shown in the maximum frequency approximately between 1500 cm −1 -4500 cm −1 , for Al-Mg-X (X = Si, Ge, Sn), concerning the strongest peaks about 2722 cm −1 (Scheme 1a), for Al-Mg-Si, 3437.64 cm −1 for Al-Mg-Ge (Scheme 1b), and 2002.22 cm −1 , 4073.06 cm −1 for Al-Mg-Sn (Scheme 1c).…”

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).…”

“…After passing through the outlet die in the crucible wall, the fiber infiltrated with the melt and entered the cold region. After the crystallization of the melt, the composite wire was produced in this way and wound onto a receiving spool (7). The mechanical properties of the composite wire obtained by this method and their comparison with the properties of similar composites are described in [8].…”

“…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.…”