Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Jurnal Keramik dan Gelas Indonesia
Kuncoro, Handoko Setyo
Balai Besar Keramik

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Density and Magnetic Properties of Barium Ferrite from BaFe12O19 Nanoparticles Prepared by Microemulsion Method Kuncoro, Handoko Setyo; Sulistarihani, Naniek; Manullang, Ria Julyana; Astari, Ratih Resti
Jurnal Keramik dan Gelas Indonesia Vol 24, No 2 (2015): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.439 KB)

Abstract

The density and magnetic properties of barium ferrite from BaFe12O19 Nanoparticles prepared by microemulsion method have been studied by comparing with the properties of micro-scaled BaFe12O19 prepared by metallurgical method. The preceding preparation consists of emulsification process, mixing, aging, centrifuging/separation, drying, grinding, and calcination at temperature of 900 oC, which brings on  the BaFe12O19 nanoparticles powder as its final product. Then, the obtained powders have been formed at compaction pressure of 200 Kg/cm2 and sintered at temperature of 1100 oC. The indications of formed BaFe12O19 nanoparticles have been confirmed via XRD and TEM testings which their dimension sizes are under 100 nm. Based on density measurements, the density of barium ferrite prepared by microemulsion method is higher than that of by metalurgical method (i.e. 5,3 gr/ml). While, the permagraph examinations have indicated that both remanence magnetic induction (2.49 kOe) and maximum energy product values (0.47 MGOe) of barium ferrite prepared by microemulsion method are higher about 1.22 and 1.47 times, respectively.
Characterization of Magnetic and Density Properties on Barium Ferrite with MnO2 Addition Astari, Ratih Resti; Kuncoro, Handoko Setyo; Rahman, Didit Nur; Kristiantoro, Toni
Jurnal Keramik dan Gelas Indonesia Vol 26, No 1 (2017): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3276.338 KB)

Abstract

The addition of MnO2 in synthesis of barium ferrite magnet were prepared by powder metallurgy method with variation formula of MnO2 0%, 0.1%, 0.2%, 0.3%, 0.5% and 1% sintered at 1175 ºC. Material characterization includes X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and permagraph were employed to investigate the effect of MnO2 addition to magnetic properties and sample density. Hysteresis curve using permagraph showed that the addition of MnO2 have an effect on the increasing of magnetic properties and density. Remanence induction (Br), coercivity (Hc) and density (ρ) reached the maximum value of 1.36 kG, 2.757 kOe and 4.29 g/cm3  respectively  on different formula MnO2. The best value of MnO2 addition could be concluded on the addition MnO2 of 0.3% with Br = 1.36 kG, Hc = 2.683 kOe, and ρ = 4.29 g/cm3. The XRD results showed the formed of barium ferrite phase in the sintered sample at 1175ºC. While the SEM result revealed that the addition of MnO2 affected the density of barium ferrite particles.
Kajian Perkembangan Penelitian Glasir untuk Industri Keramik Selama 25 Tahun Terakhir Kuncoro, Handoko Setyo; Damayanti, Herlina; Sofyaningsih, Naili
Jurnal Keramik dan Gelas Indonesia Vol 25, No 2 (2016): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3506.986 KB)

Abstract

Hasil-hasil penelitian glasir Balai Besar Keramik akan dikaji dalam kaitannya dengan permasalahan di industri keramik di Indonesia. Kajian ini bertujuan mengevaluasi perkembangan penelitian glasir di Balai Besar Keramik (BBK) dalam keterkaitannya dengan topik yang diangkat dan permasalahan di industri keramik Indonesia. Perkembangan penelitian akan dikaji dalam rentang waktu 5 tahunan sesuai topiknya. Isu-isu industri juga diklasifikasikan kedalam 5 topik isu, yakni: bahan baku, teknologi proses, mutu produk, inovasi produk, dan lingkungan. Sampel data diambil dari penelitian-penelitian glasir mulai tahun 1992 hingga 2016 berdasarkan KTI Nasional dalam majalah JKGI dan ITKG.  Sedangkan informasi tingkat permasalahan industri keramik didekati dari jajak pendapat 20 asesor industri keramik. Metode penelitian yang digunakan adalah metode statistik deskriptif dan inferensial ANOVA dengan tingkat kepercayaan 95%. Hasil perhitungan ANOVA memberikan nilai p-value dibawah 0,05 dan perhitungan nilai F 4,75 (diatas kriteria F 2,87) yang menunjukkan bahwa penelitian-penelitian glasir selama ini memiliki hubungan yang signifikan dengan permasalahan di industri keramik Indonesia. Walaupun demikian, dalam kaitannya dengan industri keramik yang lebih besar, beberapa hal perlu ditingkatkan dalam penelitian bahan baku dan teknologi proses yang juga dibahas dalam kajian ini.
Co-Authors Astari, Ratih Resti Damayanti, Herlina Kristiantoro, Toni Manullang, Ria Julyana Rahman, Didit Nur Sofyaningsih, Naili Sulistarihani, Naniek