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Suminar Pratapa
Departemen Fisika, Institut Teknologi Sepuluh Nopember, Surabaya 60111 Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Journal : Jurnal Matematika Sains dan Teknologi

 1 
SINTESIS BAHAN UBAHAN GRADUAL ALUMINUM TITANAT/KORUNDUM DARI ALUMINA TRANSISI DENGAN PENAMBAHAN MgO Fauzi, Achmad Sulhan; Pratapa, Suminar; Eko Santoso, Mohammad Herman
Jurnal Matematika Sains dan Teknologi Vol 13 No 2 (2012)
Publisher : LPPM Universitas Terbuka

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

Abstract

This article describes the results of research on the use of transition alumina for improving the performance of ceramics. Synthesis has been made of gradual changes materials (Functionally Graded Materials, FGM) aluminum titanate (AT) / corundum based on transition alumina powders with the addition of MgO as a stabilizer of AT as much as 2 wt.%. Samples without the addition of MgO was also made for comparison. Transition alumina with and without the addition of MgO were calcined at a temperature of 1100C for 1 hour to become ?-alumina. The powder mixture was compacted at a pressure of 49.3 MPa and then prasintered at a temperature of 1100C for 1 hour, then repeatedly infiltrated with infiltrator TiCl3 solution (20%) which prepared by dissolving the Ti metal powders into HCl. Furthermore, the material sintered at temperatures of 1500C with a holding time for 3 hours. Physical character of materials showed an increase in density and decrease in porosity of the material due to the addition of MgO. Phase identification results obtained from the content of AT and corundum phases which gradual in depth, indicating that FGM has been formed. These results were supported by analysis of x-ray diffraction pattern showing the formation of a solid solution Al2 (1-x) + MgxTi1 xO5 which marked by the shifting of the peak of AT phase in FGM samples with the addition of MgO. Tulisan ini menjelaskan hasil penelitian tentang penggunaan alumina transisi untuk meningkatkan performa keramik. Telah dilakukan sintesis bahan ubahan gradual (Functionally Graded Material, FGM) aluminum titanat (AT)/korundum berbahan dasar serbuk alumina transisi dengan penambahan MgO sebagai penstabil AT sebanyak 2 wt.%. Sampel tanpa tambahan MgO juga dibuat sebagai pembanding. Alumina transisi dengan dan tanpa penambahan MgO dikalsinasi pada temperatur 1100C selama 1 jam sehingga menjadi ?-alumina. Serbuk campuran dikompaksi pada tekanan 49,3 MPa lalu diprasinter pada temperatur 1100C selama 1 jam, kemudian diinfiltrasi secara berulang dengan infiltran larutan TiCl3 (20%) yang dibuat dengan cara melarutkan serbuk logam Ti ke dalam HCl. Selanjutnya bahan disinter pada temperatur 1500C dengan holding time selama 3 jam. Karakterisasi fisik bahan memperlihatkan adanya kenaikan densitas dan penurunan porositas bahan akibat penambahan MgO. Dari hasil identifikasi fasa didapatkan kandungan fasa AT dan korundum yang gradual terhadap kedalaman, menunjukkan bahwa FGM telah terbentuk. Hasil ini didukung dengan analisis pada pola difraksi sinar-x yang memperlihatkan terbentuknya larutan padat Al2(1-x)MgxTi1+xO5 yang ditandai terjadinya pergeseran puncak fasa AT pada sampel FGM dengan penambahan MgO.
SINTESIS BAHAN UBAHAN GRADUAL ALUMINUM TITANAT/KORUNDUM DARI ALUMINA TRANSISI DENGAN PENAMBAHAN MgO Achmad Sulhan Fauzi; Suminar Pratapa; Mohammad Herman Eko Santoso
Jurnal Matematika Sains dan Teknologi Vol. 13 No. 2 (2012)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jmst.v13i2.508.2012

Abstract

This article describes the results of research on the use of transition alumina for improving the performance of ceramics. Synthesis has been made of gradual changes materials (Functionally Graded Materials, FGM) aluminum titanate (AT) / corundum based on transition alumina powders with the addition of MgO as a stabilizer of AT as much as 2 wt.%. Samples without the addition of MgO was also made for comparison. Transition alumina with and without the addition of MgO were calcined at a temperature of 1100C for 1 hour to become ?-alumina. The powder mixture was compacted at a pressure of 49.3 MPa and then prasintered at a temperature of 1100C for 1 hour, then repeatedly infiltrated with infiltrator TiCl3 solution (20%) which prepared by dissolving the Ti metal powders into HCl. Furthermore, the material sintered at temperatures of 1500C with a holding time for 3 hours. Physical character of materials showed an increase in density and decrease in porosity of the material due to the addition of MgO. Phase identification results obtained from the content of AT and corundum phases which gradual in depth, indicating that FGM has been formed. These results were supported by analysis of x-ray diffraction pattern showing the formation of a solid solution Al2 (1-x) + MgxTi1 xO5 which marked by the shifting of the peak of AT phase in FGM samples with the addition of MgO. Tulisan ini menjelaskan hasil penelitian tentang penggunaan alumina transisi untuk meningkatkan performa keramik. Telah dilakukan sintesis bahan ubahan gradual (Functionally Graded Material, FGM) aluminum titanat (AT)/korundum berbahan dasar serbuk alumina transisi dengan penambahan MgO sebagai penstabil AT sebanyak 2 wt.%. Sampel tanpa tambahan MgO juga dibuat sebagai pembanding. Alumina transisi dengan dan tanpa penambahan MgO dikalsinasi pada temperatur 1100C selama 1 jam sehingga menjadi ?-alumina. Serbuk campuran dikompaksi pada tekanan 49,3 MPa lalu diprasinter pada temperatur 1100C selama 1 jam, kemudian diinfiltrasi secara berulang dengan infiltran larutan TiCl3 (20%) yang dibuat dengan cara melarutkan serbuk logam Ti ke dalam HCl. Selanjutnya bahan disinter pada temperatur 1500C dengan holding time selama 3 jam. Karakterisasi fisik bahan memperlihatkan adanya kenaikan densitas dan penurunan porositas bahan akibat penambahan MgO. Dari hasil identifikasi fasa didapatkan kandungan fasa AT dan korundum yang gradual terhadap kedalaman, menunjukkan bahwa FGM telah terbentuk. Hasil ini didukung dengan analisis pada pola difraksi sinar-x yang memperlihatkan terbentuknya larutan padat Al2(1-x)MgxTi1+xO5 yang ditandai terjadinya pergeseran puncak fasa AT pada sampel FGM dengan penambahan MgO.
Co-Authors A. Fuad Abarrul Ikram Achmad Sulhan Fauzi Agus Purwanto Agus Purwanto Agus Purwanto Ahmad Taufiq Allif Rosyidy Hilmi Ana Farisa Arif Hidayat Astuti, Fahmi Badri G.S Bintoro Anang Subagyo Cahyono, Yoyok Chairatul Umamah Darminto Darminto Darminto . Darminto Darminto Darminto Darminto Darminto Darminto Darminto Darminto Darminto Darminto Darminto Darminto Dewi Linda Kartika Dianita Wardani Dien Rosma Diana Diky Anggoro, Diky Eddy Yahya Edy Giri Rachman Putra Eko Santoso, Mohammad Herman Ella Agustin Dwi Kiswanti Endarko Endarko Ermawati, Frida U. Fahad Fahad Fahmi Astuti, Fahmi Fauzi, Achmad Sulhan Fauzi, Ah Sulhan Fikriyatul Azizah Su'ud Filza Amalina Firda Siti Nurchosiya Frissa Erina Herdiyanti Fuad D. Muttaqin Gatut Yudoyono Haniffudin Nurdiansah Hariyati Purwaningsih Heny Faisal Herman Jufri Andi, Herman Jufri Hesti Istiqlaliyah Khusnul Umaroh Lila Yuwana Lisma Dian Kartika Sari M. Arief Bustomi M. Diantoro Malik Anjelh Baqiya Masyitatus Daris S Meladia Elok Purbarani mochamad zainul Asrori Mochamad Zainuri Mohammad Herman Eko Santoso Mubarok, Fahmi Muhammad Zainul Asrori Musyarofah Musyarofah Muthmainnah, Melania Suweni Muntini Nurma Sari Nurma Sari, Nurma Nurul Amalia T Nurul Amalia Triyuliana Nurul Hidayat Retno Asih Retno Asih, Retno Riyan Angela S. Bahtiar Saifuddin Santi Puspitasari Simon Sadok Siregar, Simon Sadok Sistin A. Ani Sri Cahyo Wahyono Sriyani Purwaningsih Suasmoro Suasmoro Suasmoro Suasmoro, S. Sudarsono Sudarsono Sudarsono Sukamto, Heru Sunaryono Sunaryono Totok Wianto Triwikantoro Triwikantoro Triwikantoro Umi Maslakah Widya Utama Widya Utama Yanurita Dwihapsari, Yanurita Zaenal Arifin Zainal Arifin Zainuri (DOI: 10.12962/j24604682.v12i2.1331), Mochamad