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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Hilirisasi IPTEKS (JHI)
Muhammad Alif Alhadid
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Education Engineering Health Professions Materials Science & Nanotechnology Physics Public Health Veterinary Other

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Design and Performance Testing of Vacuum Induction Furnaces for the Development of Magnesium-Based Biodegradable Implant Materials Oknovia Susanti; Muhammad Alif Alhadid; Rispandi Rispandi; Alfikri Ikhsan
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.13203

Abstract

Magnesium (Mg) has emerged as a promising biomaterial for implants due to its similarity in physical and mechanical properties to human bone, as well as its ability to degrade safely in the body. However, the main challenges with magnesium are its relatively low mechanical strength and its high tendency to oxidize during the casting process. The use of the Vacuum Induction Casting (VIC) method is crucial to overcome oxidation and porosity issues, resulting in cast products with better integrity. This study aims to design and test the performance of a laboratory-scale vacuum induction furnace for the development of magnesium-based biodegradable implant materials. The furnace was designed using Autodesk Inventor, using a 3.000 W induction module, a water-cooled copper coil, an HA-1 refractory chamber, and a graphite crucible (±52 mL/90 g Mg). Tests showed that the furnace was able to reach an operating temperature of approximately 1.020°C in 2 minutes and 15 seconds, and successfully melted 60 grams of Mg–Gd alloy while the lowest vacuum pressure achieved by the equipment was 0.473 Atm. Rockwell A scale hardness tests yielded average values ​​of 67.1 HRA for Mg–3%Gd and 74.9 HRA for Mg–4%Gd, indicating an increase in hardness with increasing gadolinium content
INOVASI MESIN PENGHALUS REMPAH-REMPAH UNTUK PENINGKATAN EKONOMI MASYARAKAT DI KOTO ANAU KABUPATEN SOLOK Oknovia Susanti; Muhammad Khalid Al Mujaahid; Muhammad Alif Alhadid; Dedison Gasni
Jurnal Hilirisasi IPTEKS Vol. 8 No. 1 (2025)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v8i1.869

Abstract

Spices have long been an integral part of human life, playing a vital role as traditional medicine, culinary ingredients, and components in cosmetics. Indonesia, particularly within the Southeast Asian region, is regarded as a global hub for high-quality spices. One such spice-rich area is Nagari Koto Anau, located in Solok Regency, known for its production of cloves and cinnamon. However, this significant potential has yet to be fully harnessed by local farmers due to limited processing technology—particularly the lack of spice grinding machines. As a result, farmers are only able to sell their spices in raw form at low market value, which adversely affects their income. To address this issue, the design and implementation of a spice grinding machine that can be operated directly by farmers is essential. The aim of this activity is to accelerate the spice processing workflow, improve work efficiency, and enhance the added value of spice products at the local level. The programme was carried out in Nagari Koto Anau, Solok Regency, West Sumatra Province. The methods employed included interviews, equipment design, and training on the use of the spice grinding machine. Interviews involved discussions with farmers to identify their problems and offer practical solutions, followed by designing the machine based on their specific needs. The training method included a hands-on demonstration on how to operate the spice grinder. The results showed that the spices processed using the grinder became fine and evenly ground, with a production output of up to 20 kilograms.
Co-Authors Alfikri Ikhsan Dedison Gasni Muhammad Khalid Al Mujaahid Oknovia Susanti Rispandi