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All Journal Jurnal Sains dan Seni ITS Jurnal Sains Materi Indonesia Jurnal Neutrino : jurnal fisika dan aplikasinya JFA (Jurnal Fisika dan Aplikasinya) Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Omega: Jurnal Fisika dan Pendidikan Fisika Jurnal Fisika FLUX JPSE (Journal of Physical Science and Engineering) Jurnal Matematika Sains dan Teknologi Makara Journal of Science Indonesian Journal of Physics (IJP) Sewagati
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 Neutrino : jurnal fisika dan aplikasinya

 1 
THE EFFECT OF Mg-Al Wt% FOR PHASE FORMATION OF SPINEL MgAl2O4 PRODUCED BY METAL DISSOLVED METHOD Umamah, Chairatul; Pratapa, Suminar; Andi, Herman Jufri
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 12, No 1 (2019): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v12i1.7816

Abstract

Synthesis of magnesium aluminate spinel powder (MgAl2O4, abbreviated as MA) were prepared by the liquid mixing method. The synthesis of MA involved Mg powders with various weight compositions (4.8; 10; 20; 30; 40; and 60%) and Al powders (95.2; 90; 80; 70; 60 and 40%) as the raw materials, which were independently dissolved in 37% HCl to form MgCl2 and AlCl3 solutions. Both solutions were then mixed and stirred for 5 hours and dried to a temperature of about 100-105°C to produce powders with different weight compositions. Each powder resulted from drying was characterized using DTA-TGA, and then calcined at 650 °C; 750 °C and 850 °C for 1 hour. The calcined powder was characterized by XRD to qualitative and quantitative analyses using Rietica. It was found that MA samples contained only MgAl2O4 and MgO as the impurity phase. The relative weight fraction of MgAl2O4 increased up to 99% for 95.2 wt% Al. Using an extrapolative approach to determine the Mg-to-Al composition, nearly pure MA, as high as 99%, was achieved at 95.2% Al and 4.8% Mg.
PHASE ANALYSIS AND PHYSICAL PROPERTIES OF B2O3-ADDED ZIRCON CERAMICS SINTERED AT 1300 °C Fikriyatul Azizah Su'ud; Suminar Pratapa; Musyarofah Musyarofah
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 14, No 1 (2021): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v14i1.12663

Abstract

This study was aimed to know the effect of B2O3(boria) addition on the phase composition and physical properties of zircon ceramics.The raw zircon powder used in the study was a purified natural zircon sand from Kereng Pangi, Central Kalimantan, Indonesia. The zircon ceramics were prepared by a solid state reaction method with variation of B2O3 addition of 3 wt%, 6 wt% and 9 wt% and sintered at 1300 °C for 5h. The phase composition, density and microstructure were characterized using X-ray diffraction (XRD), densimeter and Scanning Electron Microscope (SEM), respectively. Vickers Hardness measurement was perfomed at the polished surface of the ceramics. Results showed that all samples contained pure zircon phase, i.e. there was no effect of B2O3 addition on the phase composition. In general, the density and hardness increased with increasing B2O3 addition, but addition up to 9 wt% is not optimum to achieve ultra-dense zircon ceramics. Furthermore, the SEM image also showed no significant difference in average grain size. The crystallite size has grown nearly eight times (325 nm) of its original powder. The Vickers hardness of the ceramics is not significantly influenced by the addition of boria. It appears that the boria failure to increase densification also results in the extent of contact between grains which then produces relatively large zircon grains.
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