Article Per Year (5 Year)
p-Index From 2021 - 2026
1.376
P-Index
This Author published in this journals
All Journal Jurnal Pengabdian Dharma Laksana Jurnal Teknik Mesin Cakram JENIUS (Jurnal Ilmiah Manajemen Sumber Daya Manusia) Piston: Journal of Technical Engineering Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Jurnal Ekonomi Efektif Jurnal PADMA: Pengabdian Dharma Masyarakat Jurnal Pengabdian Tangerang Selatan
Mulyadi Mulyadi
Universitas Pamulang
Religion Aerospace Engineering Humanities Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Piston: Journal of Technical Engineering

 1 
Analysis Crystal Structure and Magnetic Properties of Strontium Ferrite (SrO6Fe2O3) Made Using Powder Metallurg Hery Adrial; Djuhana Djuhana; Mulyadi Mulyadi; Sunardi Sunardi
Piston: Journal of Technical Engineering Vol 7, No 1 (2023)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v7i1.33184

Abstract

Strontium ferrite in this study was obtained from a mixture of strontium carbonate and pure iron sand using the metarlurgi powder method. Variation in the composition of the composition of 1: 5 mol, 1: 6 mol, 1: 7 mol with a total mass of 30 grams, both of raw materials were milled by using a rotary ball mill with an additional 125 ml of distilled water for 6 hours. Then dried using the oven to become powder again. After that the sample was calcined by using a furnace at temperatures about 1000 ℃ and hold for 2 hours The sample was measured by using X-Ray Difraction (XRD) test to determine the crystal structure and the Vibrating Sample Magnetometer (VSM) test to determine the magnetic properties. Samples with a stoichiometric composition with mole ratio SrO: Fe2O3 = 1: 6 have the highest magnetic properties, namely with a remanence value = 48 emu / g or 0.3 Tesla and a coercivity of 2500 Oe. As well as the crystal structure obtained single phase SrO6Fe2O3 (SrFe12O19).
Analysis of Mechanical and Magnetic Properties of Rubber Magnet Composite Made From NdFeB Magnetic Particlesand Silicon Rubber Edi Tri Astuti; Mulyadi Mulyadi; Sunardi Sunardi; Joko Setiyono
Piston: Journal of Technical Engineering Vol 7, No 1 (2023)
Publisher : Prodi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v7i1.33360

Abstract

This study conducted the manufacture of permanent magnet composite based on NdFeB magnetic powder and polymer adhesives, the purpose of this study was to determine the effect of the composition of the mixing of raw materials on mechanical properties and magnetic properties. Neodymium Iron Boron (NdFeB) composite was made by mixing of NdFeB magnetic powder and binder of silicon rubber (SR) in form liquid. The percentage of silicon rubber was varried of 5 %, 10%, 20 % and 30% by volume. Both raw materials were mixed until homogeneous and poured into the mold and allowed to dry at room temperature.The formed samples were characterized which includes the measurement of tensile strength and magnetic properties . The characterization results show that the sample with 20 % and 30 % SR has good flexibilty and other samples are rigid or not flexible. The variation in the composition of silicon rubber has a significant effect on mechanical properties and magnetic properties, especially remanence. The characteristic of flexible rubber magnet with a composition of 20% and 30% silicon rubber is that it has a tensile strength of 9.31 - 11.46 N / mm2 with an elongation of 17.55-26.74% and a hardness of 38-42 HA. While the magnetic properties achieved are magnetic field strength = 430-500 Gauss, remanence = 30-35 emu / g and coercivity of 2000 Oe
Co-Authors Budhi Prabowo Djuhana Djuhana Edi Tri Astuti Hadi Winata Hastono Hastono Hery Adrial Joko Setiyono Komarudin Komarudin N Lilis Suryani Nani Rusnaeni Niko Purnomo Noryani Noryani Paeno Paeno Prayogo Wicaksono Puji Harjianto Raden Mohamad Herdian Bhakti Ratnawati Ratnawati Sudiarto Sudiarto Sutrisno Sutrisno Ugeng Budi Haryoko Umi Khomisah Widya Intan Sari