Karakterisasi Komposit Matriks Logam Al-Sic pada Produk Kanvas Rem Kereta Api

Abstract

One of the vital components included on a train as the vehicle is brake. Brake serves as a tool to adjust the vehicle speed control, especially to reduce and stop the vehicle. Metal matrix composites of Al-SiC (Al-SiC MMC) using aluminum as the matrix and SiC particles as a reinforcement. Aluminum is heated to the melting point, and then mixed with SiC powder, then poured into a mold. Aluminum matrix composite materials with SiC ceramic amplifier or called isotropic Al-SiC composite is a combination that fits in improving mechanical performance and durability in corrosive damage. As for the selection of metal Al as matrix metal because it has a specific gravity that light so it can be used as a substitute for the manufacture of brake components train. This study only in limiting the amount of mixing of Al-82% by 18% SiC, which aims to seek and obtain alternative materials train brake better than cast iron materials in use today. Tests done is test hardness, wear, and tensile test in lieu of cast iron railway brake materials. From the test results showed that the optimum conditions obtained at the composition of 18% SiC and sintering temperature of 600 °C with the following characteristics: violence 88.96 HRB, wear 2.575 x 10-5 gram/mm2.s, tensile strength 19.77 kgf/mm2. To obtain the synthesis of metal matrix composite Al-SiC more research needs to be developed further with the composition of Al- SiC is more variable again.