Article Per Year (5 Year)
p-Index From 2020 - 2025
1.286
P-Index
This Author published in this journals
All Journal Rotasi Rekayasa Mesin Akta Kimia Indonesia Metalurgi Sainstek : Jurnal Sains dan Teknologi Journal of Technomaterial Physics Makara Journal of Technology
Agus Sukarto Wismogroho, Agus Sukarto
Pusat Penelitian Fisika,Lembaga Ilmu Pengetahuan Indonesia (LIPI)
Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
MODIFIKASI STRUKTUR PERMUKAAN ALUMINIUM DENGAN BUBUK BESI MENGGUNAKAN METODA MECHANICAL ALLOYING[Surface Modification of Aluminum Plate With Iron Powder using Mechanical Alloying Method] Wismogroho, Agus Sukarto; Sebleku, Pius
Metalurgi Vol 28, No 3 (2013): Metalurgi Vol.28 No.3 Desember 2013
Publisher : Pusat Penelitian Metalurgi dan Material - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (840.37 KB) | DOI: 10.14203/metalurgi.v28i3.263

Abstract

MODIFIKASI STRUKTUR PERMUKAAN ALUMINIUM DENGAN BUBUK BESI MENGGUNAKANMETODA MECHANICAL ALLOYING. Pada penelitian ini telah dilakukan studi mengenai modifikasi strukturpermukaan pelat aluminium dengan bubuk besi menggunakan metoda mechanical alloying (MA) yang bertujuanuntuk dapat memperoleh lapisan paduan antara aluminium dari pelat dengan bubuk besi yang digunakan. Pelataluminium, bubuk besi dan bola-bola milling dimasukkan ke dalam bejana milling untuk dilakukan proses MA.Jumlah bubuk besi yang digunakan divariasikan sebanyak 2 dan 10 gram. Lama MA dilakukan sampai 10 jam.Hasil proses MA menunjukkan bahwa lapisan partikel dari bubuk besi dapat diperoleh di permukaan pelataluminium. Struktur pelapisan yang terbentuk berupa struktur lamellar yang merupakan gabungan antara partikelbesi dengan aluminium yang mengalami deformasi memipih karena proses penumbukan yang berulang. Sejalandengan MA, partikel besi semakin masuk ke dalam permukaan aluminium, sedangkan bagian dari aluminiumterdorong keluar sehingga membentuk pemaduan antara keduanya. Pada proses MA dengan bubuk besi 2 gram,diperoleh fasa FeAl selama lebih dari 2 jam. Sedangkan pada proses MA dengan bubuk besi 10 gram, belumdiperoleh fasa baru meskipun telah dilakukan MA selama 10 jam. Pembentukan lapisan Fe-Al, pembentukanpaduan dan lama pembentukannya sangat dipengaruhi oleh banyaknya bubuk besi yang digunakan dalam prosesMA. Ketebalan lapisan optimal berkisar 100 μm, dengan lapisan yang terlihat memiliki kepadatan tinggi danikatan yang baik. AbstractIn this research, a study on the modification of the surface structure of the aluminum plate with iron powderusing the mechanical alloying (MA) methode was conducted. This process aims to obtain a coating layer ofalloy between aluminum plates with iron powder used. Aluminum plates, iron powder and milling ballsinserted into the milling vessel for the MA process. The amount of iron powder used was 2 and 10 grams.MA was done up to 10 hours. MA results showed that the coating layer of iron particles can be obtained onthe surface of the aluminum plate. The microstructure of the coating layers formed a lamellar structurebetween Al and Fe. With increasing MA time, the iron particles entered the surface of the aluminum plate,while aluminum was pushed out that made the compound or mixing between Fe and Al. In the MA processwith 2 grams iron powder, the FeAl phase was obtained after MA for more than 2 hours. While in the processof MA with 10 grams iron powder, a new phase wasn’t observed even though after MA for 10 hours. Thecoating layers formation of the mixing Fe-Al, the Fe-Al alloy and the formation time were stronglyinfluenced by the amount of iron powder used in the MA process. The optimal coating thickness was about100μm, with apparently had a high density and a good bond.
PERANCANGAN ALAT PERAGA DIFFERENTIAL THERMAL ANALYSIS UNTUK ANALISIS TITIK LELEH MATERIAL INDIUM, TIMAH DAN SENG Hidayanti, Fitria; Yulianto, Tri; Wismogroho, Agus Sukarto
Sainstek : Jurnal Sains dan Teknologi Vol 8, No 2 (2016)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (751.155 KB) | DOI: 10.31958/js.v8i2.472

Abstract

The aims this research was to designed a differential thermal analysis props to analyze the melting point of the material. Differential Thermal Analysis props have a furnace with a maximum temperature of 600 ° C. Temperature sensor used is a K-type thermocouple with a measurement range of -200 ° C to 1200 ° C. Controller is used to control the temperature of the furnace is Autonics with digital temperature controller type TK4M. Measurement of the value of the temperature in the furnace using an Arduino Uno microcontroller connected to LabVIEW software via USB. Measurement of the melting point of the material used these props are tested on material Indium (In), tin (Sn), and zinc (Zn) with a melting point 152,50C, 231,50C and 4250C.
Karakterisasi Serbuk Timah dari Sistem Atomisasi Gas Argon Panas - Sub Sistem Gas Alir Tabung Gas Basyir, Abdul; Aryanto, Didik; Jayadi, Jayadi; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.20

Abstract

The tin powder was used in some applications and technology such as for part manufacture through alloying, pressing, and sintering process, mixing material for the pyrotechnic application, the main material for solder pasta, mixing material on tin chemical, and others. Therefore, the demand for tin powder with a small size, spherical shape, and high purity is increasing severely. Indonesia (PT. Timah Tbk.) is one of the world’s largest producers of tin raw materials. This raw material can be processed be as powder by the atomization method. In this research, hot argon gas atomization system was used to generated tin powder. Raw tin was melted in a melting chamber with temperature variations of 600, 700, 800, and 900 °C. This experiment generates powder with a dominant size of 37 – 150 mm. Meanwhile, for size powder of 0 – 30 mm, dominated by size range of 0 – 10 mm. Furthermore, the size powder of 0 – 30 mm is composed of tin phase, without tin oxide. The tin powder of melting chamber temperature of 900 °C produces the largest tin powder with a size of 0 – 10 mm and spherical powder.
Mechanical Alloying-assisted Coating of Fe–Al Powders on Steel Substrate Noviyanto, Alfian; Harjanto, Sri; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto; Amal, Muhamad Ikhlasul; Rochman, Nurul Taufiqu
Makara Journal of Technology Vol. 24, No. 3
Publisher : UI Scholars Hub

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

Abstract

The coating layer of Fe–Al powders on the steel substrate was prepared by mechanical alloying at room temperature. Fe, Al, and the steel substrates were milled with high-energy ball milling for 32 h with a ball-to-powder ratio of 8 in an argon atmosphere to prevent oxidation during milling. Although mechanical alloying was performed for 32 h, no new phases were observed after mechanical alloying, as analyzed by X-ray diffraction. However, the crystallite size of the milled powders for 32 h decreased by factor two compared with the initial powders. Scanning electron micrographs showed that the coating layers formed >8 h after mechanical alloying. The intermetallic Fe3Al formed after the substrate was annealed at 500 ℃.
Perilaku Oksidasi dari Lapisan Komposit Al-MoSi2 yang Difabrikasi Di Atas Baja Karbon Rendah Dengan Teknik Paduan Mekanik Gufron, Moh. Thoyful; Setyoadi, Yuris; Aryanto, Didik; Wismogroho, Agus Sukarto
ROTASI Vol 26, No 2 (2024): VOLUME 26, NOMOR 2, APRIL 2024
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.26.2.29-37

Abstract

Lapisan komposit Al-MoSi2 telah dideposisikan di atas permukaan baja karbon rendah. Lapisan komposit Al-MoSi2 di uji oksidasi siklik selama 100 jam dengan lingkungan udara. Setiap siklik, lapisan komposit berada dalam tungku muffle selama 20 jam. Efek suhu pada uji oksidasi siklik terhadap perilaku oksidasi dari lapisan komposit dipelajari berdasarkan hubungan pertambahan berat terhadap siklik dan laju oksidasi. Hasil uji oksidasi siklik menunjukkan bahwa lapisan komposit AlMoSi2 dapat meminimalisir terjadinya oksidasi pada baja karbon rendah pada suhu 600 dan 700 °C. Namun, Hal tersebut tidak berlaku ketika oksidasi siklik pada suhu 800 °C, dimana terjadi retakan dan kerusakan pada lapisan coating Al-MoSi. Hal tersebut berarti bahwa lapisan komposit Al-MoSi2 memiliki ketahanan oksidasi yang baik pada suhu 600 dan 700 °C.
Development of Mortar for Repair of Cracked Concrete with Injection Method MANALU, HARDIANTI; Wismogroho, Agus Sukarto
Journal of Technomaterial Physics Vol. 4 No. 1 (2022): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v4i1.7779

Abstract

This study aimed to develop a mortar with the addition of glass fiber as a mortar reinforcement with variations in the addition of glass fiber (0 gram; 5.99 grams; 17.97 grams) which was homogenized with variations in the addition of aggregate (5.32 kg; 2.66 kg; 0 kg) and cement variations (1.56 kg; 3.41 kg; 5.25 kg). Mortar is used as a material for repairing cracked concrete by using the injection method. The mortar tests carried out were mortar flow testing, flexural strength testing, compressive strength testing, adhesive strength testing, and OM observations. The results of the mortar flow test with a mixture of cement without aggregate and the addition of 5.99 grams of glass fiber showed that the mortar could flow in gaps of 1 mm, 3 mm, and 5 mm. The optimum flexural strength test results with the addition of glass fiber are that the cement mixture is more than the aggregate with glass fiber 17.97 gram, the flexural strength value of the mortar is 0.74 MPa. While the optimum compressive strength with the addition of glass fiber is a mixture of more cement than aggregate with glass fiber 17,97 gram, the compressive strength value of mortar is 16.6 MPa. The results of the optimum mortar adhesive strength test value flowing in a gap are the addition of 5.99 grams of glass fiber; the mortar adhesive strength value is 3.31 MPa. Based on the results of observations using OM, the glass fiber that binds or can blend with the mortar is a mixture of cement without the addition of aggregates.
Compositional and Thermal Effects on the Phase Stability and Crystallinity of Cu₂SnS₃ Nanoparticles Ismail, Agus; Nurika, Destia; Wismogroho, Agus Sukarto; Amal, Muhammad Ikhlasul
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22811

Abstract

Cu₂SnS₃ (CTS) is a promising semiconductor for photovoltaic applications, yet its synthesis via solid-state sintering remains insufficiently explored. This study examines the phase evolution and structural properties of CTS thin films fabricated from Cu, Sn, and S elemental precursors sintered at 300 °C, 400 °C, 500 °C, and 600 °C. X-ray diffraction (XRD) analysis confirmed that stoichiometric CTS attained optimal phase purity at 500°C, whereas off-stoichiometric compositions resulted in secondary phases such as Cu₂S, Cu₉.₆₇Sn₂.₃₃S₁₃, and SnS₂. Scanning electron microscopy (SEM) revealed microstructural transformations, with well-defined crystalline domains emerging at 500°C but excessive grain coalescence in Cu-rich samples. Energy-dispersive X-ray spectroscopy (EDX) verified compositional variations, underscoring the critical role of stoichiometry in phase stability. These findings demonstrate that precise compositional control and optimized sintering conditions are essential for high-purity CTS films, advancing their potential for enhanced photovoltaic performance and long-term operational stability.
Co-Authors Abdul Basyir, Abdul Agus Ismail Amal, Muhamad Ikhlasul Amal, Muhammad Ikhlasul Didik Aryanto Gufron, Moh. Thoyful Hidayanti, Fitria Jayadi Jayadi MANALU, HARDIANTI Noviyanto, Alfian Nurika, Destia Nurul Taufiqu Rochman Pius Sebleku Sri Harjanto Tri Yulianto Wahyu Bambang Widayatno, Wahyu Bambang Yuris Setyoadi