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Hendriwan Fahmi
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Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Effect of Aluminium and Copper Powder Addition in Alumina Matrix on Bending Strength Hendriwan Fahmi; Yanto, Asmara; Sulaeman
Jurnal Teknik Mesin Vol 6 No 1 (2016): Jurnal Teknik Mesin Vol.6 No.1 April 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i1.15-18

Abstract

The aim of this research is to find out the influence of the addition of aluminum (Al) and copper (Cu) on matrik alumina (Al2O3) against the forces of bending. Of aluminum made by a process of water and atomization of copper made by the process of atomization centrifugal. Consisting of copper aluminum and continued with a sifting using a measure of 50 - 100 mesh up to get the size of the amounting to 150 - 125 µm. of the measures followed by the process of mixing with the variation of a composition of 100 % of the volume of Al2O3, 90 % of the volume of Al2O3 + 10 % heavy Al and Cu, 80 % of the volume of Al2O3 + 20 % heavy Al and Cu, 70 % of the volume of Al2O3 + 30 % heavy Al and Cu, al2o3 + 60 % of the volume of 40 % heavy Al and Cu. Then will be the process of compacting with pressure 140 MPa. The process of sintering committed using furnace with the temperature 1050 OC by heating rate 5 OC / minute. In this research voltage power bending highest obtained in composition 80 % of the volume of Al2O3 + 20 % heavy Al and Cu to voltage bending average of 6,66MPa.
Strength Analysis of Betelnut Fiber-Reinforced Resin Composite Hendriwan Fahmi; Yanto, Asmara; Fajar Marda Kapur
Jurnal Teknik Mesin Vol 6 No 2 (2016): Jurnal Teknik Mesin Vol.6 No.2 October 2016
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2016.v6.i2.87-92

Abstract

Material is needed in life, the material itself is used aims to facilitate human activities, in the development of modified human material in various ways, one of which composite materials. Composite is a combination of two or more elements that get combined properties of the elements combined. Liquid Epoxy resin is a low molecular weight organic group containing epoxide. The composite material used is a fiber reinforced resin nut shell. Point of this study is know tensile strength of fiber nut shell composite, variations in the composition of the epoxy resin and fiber nut shell made in this study was 90:10%wt, 80:20%wt, and 70:30%wt, fiber length of 2 cm with random fiber orientation. This experiment is the tensile test. Tensile test was conducted to determine the tensile stress each - each composition, the standard used is ASTM 638 02. From the test results obtained on the composition of the composite tensile strength of 90: 10% wt is 9.8 MPa, the composition of 80: 20% wt was 13.06 MPa and the composition of 70: 30% wt is 14.04 MPa. Of the fracture surface can be seen that the fibers are well distributed and the bond between resin and fiber is also more evenly so that the tensile strength increased.
Co-Authors Angga Prima Syokti Asmara Yanto Fajar Marda Kapur Harry Hermansyah Nur Arifin Ronaldi Sulaeman Syafrul Hadi