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Journal of Applied Materials and Technology
Published by Universitas Riau
ISSN : 2721446X     EISSN : 26860961     DOI : https://doi.org/10.31258/Jamt
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Mechanical Engineering
Journal of Applied Materials and Technology (JAMT) is aimed at capturing current development and initiatives in applied materials and technology. JAMT showcases innovative applied materials and technology, providing an opportunity for science, transfer and collaboration of technology. JAMT focuses on the publication in the area of material science, material engineering and technology, renewable energy, sustainable material and construction method. The selected, high-quality reviews, research reports at the state of the art of the science and material technology are welcomed.
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol. 7 No. 2 (2026): March 2026" : 2 Documents clear
Preparation and characterization of MoS2 thin films for thermoelectric applications using the PVD technique dos Passos, Joede; Oliveira, Adhimar Flavio; Rubinger, Rero Marques
Journal of Applied Materials and Technology Vol. 7 No. 2 (2026): March 2026
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.2.49-57

Abstract

Molybdenum disulfide (MoS2) is a two-dimensional material with electronic and thermal properties that make it promising for thermoelectric applications. This research presents the results of synthesizing and characterizing MoS2 thin films obtained by Physical Vapor Deposition (PVD) on silicon dioxide (SiO2) substrates. Three experimental approaches were explored to assess how changes in deposition conditions affect the material quality. In the first trial, films were formed from commercial MoS? powder in a sulfur-rich (S2) atmosphere using a PVD tubular furnace. Next, water vapor (H2O) was added to the process to observe possible improvements in material formation. Finally, silver doping was investigated, introduced during deposition to examine structural and vibrational changes in the MoS2. The samples were characterized by Optical Microscopy (OM) and Scanning Electron Microscopy (SEM), as well as Energy Dispersive Spectroscopy (EDS), used to evaluate surface morphology and composition. X-ray Diffraction (XRD) was employed to identify the crystalline structure, while Raman Spectroscopy revealed the E2g1 and A1g vibrational modes, associated with the crystallinity of the material. The results indicated that the presence of H2O during deposition favored the growth of more ordered films, with more intense peaks in XRD and Raman spectra. On the other hand, silver doping caused vibrational changes that suggest modifications in the electronic structure of MoS2.  These findings reinforce the material’s potential for use in thermoelectric devices and demonstrate that variations in synthesis conditions can significantly enhance its structural and functional properties.
Finite Element-Based Validation of Infill Wall Material Model for Seismic Response Analysis of Reinforced Concrete Frames Ridwan, Ridwan; Wulandari, Chrisfella; Jemaa, Yaser; Wanda Putri, T. Sy. Zahiyyah Aini; Salsabila, Elsa Attila; Yuniarto, Enno; Kamaldi, Alfian
Journal of Applied Materials and Technology Vol. 7 No. 2 (2026): March 2026
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.2.58-65

Abstract

Masonry infill walls are commonly used in reinforced concrete (RC) frame buildings for both architectural and environmental reasons.  Although many consider RC systems to be non-structural, their interaction with surrounding frames can have a significant impact on their lateral stiffness, strength, and seismic performance. This can lead to stiffness issues and soft-story failures during earthquakes. This study looks at the structural function of masonry infills. It compares the experimental load-displacement backbone curve of an infilled RC frame with numerical predictions from four well-known Equivalent Diagonal Strut (EDS) models: Holmes, Mainstone, Liau and Kwan, and Paulay and Priestley. We looked at how well the models performed for both serviceability (initial stiffness) and ultimate limit states (peak lateral strength). The findings demonstrate a definite trade-off in predictive accuracy. With a mean stiffness ratio of 1.38, the Mainstone model yielded the most accurate estimate of elastic stiffness. The Holmes and Liau and Kwan models, on the other hand, significantly overestimated stiffness (ratio = 1.92). All models were conservative (ratios < 1.0) for peak strength. Holmes and Liau and Kwan produced the closest predictions (ratio = 0.84), while Mainstone was the most conservative (ratio = 0.80). These results indicate that the best choice of EDS model depends on the design goal: Mainstone is better for serviceability assessments, while Holmes and Liau and Kwan provide more realistic predictions for ultimate lateral capacity.

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