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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Makara Journal of Science
Zainuri, M
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Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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UJI XRD DAN XRF PADA BAHAN MENERAL (BATUAN DAN PASIR) SEBAGAI SUMBER MATERIAL CERDAS (CACO3 DAN SIO2) Munasir, M; Triwikantoro, T; Zainuri, M; Darminto, D
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 2, No 1 (2012)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v2n1.p20-29

Abstract

Indonesia adalah negara dengan potensi alam yang melimpah, khususnya bahan tambang (mineral), diantaranya material-material dengan kandungan oksida yang mempunyai prospek aplikasi sebagai material cerdas (misalnya SiO2, CaCO3, Al2O3,TiO2, dsb). Tujuan dari penelitian ini adalah mencari atau mengidentifikasi kandungan unsur oksida didalam bahan alam jenis batuan atau pasir kuarsa dengan kemurnian tinggi (> 50%), khususnya sebagai sumber oksida SiO2 (silica) dan CaCO3 (calsite). Selanjutnya bahan-bahan tersebut akan diproses dengan milling proses serbuk (ukuran mikron) untuk, peningkatan kemurnian tinggi dan pengecilan ukuran pada orde nanometer. Identifikasi awal adalah melakukan uji difraksi Sinar-X (XRD) dan analisisnya (kualitatif) serta uji flouresensi sinar-X (XRF). Telah dilakukan uji XRD dan XRF pada sampel batuan yang diambil dari daerah Tulungagung, onik dari pulau Bawean-Gresik, dan pasir dari Tuban dan Sumenep. Hasil difraksi sinar X (XRD) bahan alam (batuan dan pasir) yang diambil sebagai sampel yang diambil dari beberapa daerah tersebut, diperoleh bahwa Batu_1(onik) dan Batu_2(putih) menunjukan bahwa sampel tersebut mempunyai fase dominan struktur kristal Calsite (CaCO3), dan untuk pasir dari Tuban dan Sumenep mempunyai fase dominan quartz (SiO2), demikian. Dan hasil XRF menunjukan kandungan CaCO3 pada sampel batuan (onik) cukup tinggi (98,23%), dan untuk sampel pasir (Tuban dan Sumenep) menunjukan kandungan oksida quartz (SiO2) dengan kemurnian yang tinggi (65,9 -76,8 %), dengan impuritas terbanyak CaO dan Fe2O3 (20-28%).
PENGARUH PELAPISAN PERMUKAAN PARTIKEL SiC DENGAN OKSIDA METAL TERHADAP MODULUS ELASTISITAS KOMPOSIT Al/SiC Zainuri, M; Siradj, Eddy S; Priadi, Dedi; Zulfia, Anne; Darminto, Darminto
Makara Journal of Science Vol. 12, No. 2
Publisher : UI Scholars Hub

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Abstract

The Influence of Coating Oxide Metal on Surface of SiC Particles to Elastic Modulus of Al/SiC Composites. The isotropic composites of Al/SiC is made by powder metallurgy method, the quality of mechanical materials depend on interfacial bonding between matrix (Al) and reinforcement (SiC). The quality of interfacial bonding can influence to elastic modulus of composites which is made by solid process. SiC particles were coated by metal oxide aim to enhance quality interfacial bonding between matrix and reinforcement. These research using three kinds of coating materials, which are Mg oxide, Cu oxide and Al oxide, and these materials were deposited on surface of SiC particles. From three kinds of materials coating Al2O3 is the best to enhance quality interfacial bonding between matrix and reinforce than the others as CuO or MgO. There is Intermetalic phase formatted on CuO coating, and MgO coating have many porous where they can make decrease quality of Al-SiC composites. All of volume fraction of SiC on the Al/SiC composites, which oxide aluminum coating on SiC surface have highest value of elastic modulus than the others metal oxides.
PENGARUH PELAPISAN PERMUKAAN PARTIKEL SiC DENGAN OKSIDA METAL TERHADAP MODULUS ELASTISITAS KOMPOSIT Al/SiC Zainuri, M; Siradj, Eddy S; Priadi, Dedi; Zulfia, Anne; Darminto, Darminto
Makara Journal of Science Vol. 11, No. 2
Publisher : UI Scholars Hub

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Abstract

The Influence of Coating Oxide Metal on Surface of SiC Particles to Elastic Modulus of Al/SiC Composites. The isotropic composites of Al/SiC is made by powder metallurgy method, the quality of mechanical materials depend on interfacial bonding between matrix (Al) and reinforcement (SiC). The quality of interfacial bonding can influence to elastic modulus of composites which is made by solid process. SiC particles were coated by metal oxide aim to enhance quality interfacial bonding between matrix and reinforcement. These research using three kinds of coating materials, which are Mg oxide, Cu oxide and Al oxide, and these materials were deposited on surface of SiC particles. From three kinds of materials coating Al2O3 is the best to enhance quality interfacial bonding between matrix and reinforce than the others as CuO or MgO. There is Intermetalic phase formatted on CuO coating, and MgO coating have many porous where they can make decrease quality of Al-SiC composites. All of volume fraction of SiC on the Al/SiC composites, which oxide aluminum coating on SiC surface have highest value of elastic modulus than the others metal oxides.
PENGARUH PELAPISAN PERMUKAAN PARTIKEL SiC DENGAN OKSIDA METAL TERHADAP MODULUS ELASTISITAS KOMPOSIT Al/SiC Zainuri, M; Siradj, Eddy S; Priadi, Dedi; Zulfia, Anne; Darminto, Darminto
Makara Journal of Science Vol. 12, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Influence of Coating Oxide Metal on Surface of SiC Particles to Elastic Modulus of Al/SiC Composites. The isotropic composites of Al/SiC is made by powder metallurgy method, the quality of mechanical materials depend on interfacial bonding between matrix (Al) and reinforcement (SiC). The quality of interfacial bonding can influence to elastic modulus of composites which is made by solid process. SiC particles were coated by metal oxide aim to enhance quality interfacial bonding between matrix and reinforcement. These research using three kinds of coating materials, which are Mg oxide, Cu oxide and Al oxide, and these materials were deposited on surface of SiC particles. From three kinds of materials coating Al2O3 is the best to enhance quality interfacial bonding between matrix and reinforce than the others as CuO or MgO. There is Intermetalic phase formatted on CuO coating, and MgO coating have many porous where they can make decrease quality of Al-SiC composites. All of volume fraction of SiC on the Al/SiC composites, which oxide aluminum coating on SiC surface have highest value of elastic modulus than the others metal oxides.
Co-Authors Anne Zulfia Darminto . Darminto, D Dedi Supriadi Eddy S Siradj MUNASIR Triwikantoro Triwikantoro