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Jamasri .
Fakultas Teknik, Universitas Gadjah Mada, Yogyakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences

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UTILIZATION OF FLY ASH WASTE AS REINFORCEMENT OF ALUMUNIUM MATRIX COMPOSITE PRODUCED USING POWDER MERALLURGY (Pemanfaatan Limbah Abu terbang sebagai Penguat Alumunium Metal Matrix Composite Dibuat dengan Cara Metaalurgi Serbuk) Subarmono Subarmono; Jamasri Jamasri; M.W. Wildan; Kusnanto Kusnanto
Jurnal Manusia dan Lingkungan Vol 18, No 2 (2011): Juli
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18814

Abstract

ABSTRAKPada penelitian ini telah dilakukan pembuatan aluminium matrix composite (AMC) dari serbuk aluminium sebagai matrik dan limbah abu terbang sebagai penguat. Sejumlah abu terbang yaitu 2,5; 5; 7,5 dan 10% berat ditambahkan pada bubuk aluminium. Campuran abu terbang dan serbuk aluminium dikompaksi secara aksial dengan tekanan 100 MPa dan dilanjutkan dengan proses sintering tanpa tekanan dengan lingkungan gas argon pada berbagai temperatur yaitu 500˚, 525˚, 500˚, 575˚ dan 600˚C. Pengujian kekuatan bending menggunakan metode four point bending, kekerasan menggunakan metode Vickers, laju keausan menggunakan metode pin on disk dan porositas menggunakan metode Archimedes serta struktur mikro diamati menggunakan SEM. Hasil penelitian menunjukkan bahwa kekuatan bending dan kekerasan meningkat, laju keausan dan porositas menurun seiring dengan bertambahnya abu terbang pada AMC sampai 7,5% berat, namun bila kandungan abu terbang lebih dari 7,5% berat sifat AMC menunjukkan kebalikannya. Porositas, kekuatan bending, laju keausan dan kekerasan terbaik yaitu pada AMC dengan 7,5% berat abu terbang berturut-turut sebesar 5,4%, 68,5 MPa, 0,0571 mg/(MPa.m) and 62,6 VHN. Hal ini menunjukkan bahwa kekuatan bending, kekerasan dan ketahanan aus AMC lebih baik dibanding aluminium murni.ABSTRACTAluminum matrix composite (AMC) has been prepared from aluminum fine powder as a matrix and fly ash waste as reinforcement. In this research the amount of fly ash as much as 2.5, 5, 7.5 and 10 wt%  was added to the aluminum fine powder. The mixture was compacted using uniaxial with a pressure of 100 MPa and it was pressureless sintered in argon atmosphere at various temperature of 500°, 525°, 550°,575° and 600ºC. Bending strength of AMC was determined using four point bending, hardness was tested using Vickers method, wear rate was tested using pin on disk method, porosity was tested using Archimedes method and the micro structure was observed using SEM. The result shows that fly ash can be used as reinforcement of AMC. The bending strength and Vickers hardness of AMC increase, wear rate and porosity of AMC decrease with increasing the fly ash content up to 7.5 wt%, while fly ash higher than 7.5 wt% causes a decrease. Porosity, bending strength, wear rate and hardness of AMC are 5.4%, 68.5 MPa, 0.0571 mg/(MPa.m) and 62.6 VHN, respectively. It show that bending strength, hardness and wear resistance of AMC are higher than pure aluminum
Co-Authors A. E Tontowi A. Puspawan Alva Edy Tontowi Alva Edy Tontowi Alva Tontowi Alva Tontowi, Alva Aris Budiyono Budi Rochardjo, Heru Santosa Dawal, Siti Zawiah Md. Dawal, Siti Zawiah Md. Duskiardi Duskiardi Gunesti Wahyu Handiko H. Hestiawan H. S Rochardjo Hendri Hestiawan Hendri Hestiawan Heru Santoso Budi Rochardjo Heru Santoso Budi Rochardjo, Heru Santoso Heru Santoso Budi Rochardjo, Heru Santoso Budi Iswanto, P.T. Iswanto, P.T. Khasanah, Rahayu Kuncoro Diharjo Kusmono Kusnanto Kusnanto Kusnanto Kusnanto M. Waziz Wildan M.N. Ilman M.N. Ilman, M.N. M.W. Wildan M.W. Wildan Mastariyanto Perdana Nur Subeki Orisanto Darma Setiawan R. Soekrisno Riyadi, S Rizky Arman Rochardjo, H. S S Riyadi S. A Widyanto Slamet Widyanto Slamet Widyanto, Slamet Subarmono Subarmono Subarmono Subarmono Sugiarto Sugiarto Suryadima Suryadima Susilo Adi Widyanto Susilo Widyanto Susilo Widyanto, Susilo Sutiarso Sutiarso Tjuk Oerbandono Tontowi, A. E Triyono Triyono Wenny Marthiana Widyanto, S. A Widyanto, Slamet A. Yovial Mahyoedin