Article Per Year (5 Year)
p-Index From 2020 - 2025
1.037
P-Index
This Author published in this journals
All Journal Jurnal Teknik Industri Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Prosiding Seminar Nasional Teknoka Logic : Jurnal Rancang Bangun dan Teknologi International Journal of Engineering and Emerging Technology Mechanical Engineering for Society and Industry
NPG Suardana
Program Studi Teknik Mesin, Fakultas Teknik Universitas Udayana
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 23 Documents
Search

 1   2   3 
Pemanfaatan Limbah Serbuk Kayu Sebagai Penguat Pada Matriks Getah Pinus-Epoxy Dan Dengan Dan Tanpa Perlakukan NaOH putri kusuma kencanawati; NPG Suardana; I Ketut Gede Sugita
Jurnal Energi Dan Manufaktur Vol 6 No 01 (2023): April 2023
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2023.v16.i01.p02

Abstract

The use of wood as the main material for making furniture is one of the causes of the increasing amount of sawdust waste. Efforts that can be made to reduce the amount of wood waste is to use it as a raw material for the manufacture of particleboard/composite material. The manufacture of particleboard is currently still using synthetic materials that are difficult to degrade by nature (non-biodegradable). Therefore, in this study using materials that can be naturally degraded (biodegradable), namely using sawdust waste which is treated with immersion with variations of NaOH (5%, 7.5% and 10%) for 1 hour first to remove dirt on the soil. powder, then mixed with pine resin/epoxy matrix with a composition of wood powder (10%, 15%, and 20%). Furthermore, physical tests will be carried out, namely density and water absorption as well as bending tests in accordance with ASTM D790-03. Manufacture of composite wood powder/pine sap/epoxy hand lay up method in the process. The results of the bending test showed that the highest bending stress was in the composition of sawdust: matrix (15:85) immersed in 5% NaOH, which was 79.22 MPa. The highest strain value in the composition of sawdust: matrix (20:80) without NaOH immersion was 0.088 and the highest modulus of elasticity was in the composition 15:85 with 5% NaOH immersion which was 744 MPa. Density test showed that the highest density value was found in the composition of 20;80 5% NaOH immersion with a density value of 1.088 gr/cm3, the smallest density value was in the composition of 10;90 10% NaOH immersion of 1.021 gr/cm3. In the water absorption test, the highest value was shown in the composition of 20:80 immersion in 10% NaOH with a value of 17.59% and the lowest value was shown in the composition of 10:90 without immersion in NaOH with a value of 6.81%. The results of this study indicate that the increase in the value of stress, strain and modulus of elasticity from the bending test is influenced by the concentration of alkaline solution, where the more concentrated the NaOH content, the bending strength and density will decrease but inversely proportional to water absorption.
Efek gaya tekan pembuatan hibrid komposit berpenguat SiCw/Al2O3 dengan wetting agent Mg terhadap sifat fisik dan mekanik Suarsana, K.; Suardana, N.P.G.; Negara, D.N.K.P.; Sunu, P.W.; Triadi, A.A.A.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 11, No 1 (2021): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.243 KB) | DOI: 10.29303/dtm.v11i1.368

Abstract

The growing demand for metal-based materials in the manufacturing industry has prompted the development of composite materials that have better mechanical and physical properties than single materials. The development be done in order to obtain new materials that have better properties. The research was conducted using a powder metallurgy process, by varying the compressive force and holding time in order to determine the effect of the combination of compression and holding time on the mechanical and physical properties of composites. The variations in the compressive force are 20, 25, and 30 kN, with a holding time of 15, 30 and 45 minutes for each force. Research includes tests of density, porosity, hardness, wear and Scanning Electronic Microscope. The results of the density test showed that the highest density value was 2.982 gr/cm3 and the lowest porosity value was 13.074% at a compressive force of 25 kN, holding time of 45 minutes. The results of the highest hardness value 53.455  kg/mm2 at 30 kN, 45 minutes and the lowest wear value 2.15455E-05 gr at a pressure of 20 kN, 15 minutes. Based on the test results, the characteristics of the density are inversely proportional to the porosity, while the hardness and wear are influenced by the length of holding time in the moldof a composite using aluminum as a matrix needs too.
The analysis of semiconducting charateristic of rice husk-based carbon nanomaterial bio-activated by pineapple peel juice Dwidiani, Ni Made; Suardana, Ngakan Putu Gede; Wardana, I Nyoman Gede; Nugroho, Willy Satrio; Puja, I Gusti Ketut; Septiadi, Wayan Nata; Santhiarsa, I Gusti Ngurah Nitya; Tista, Si Putu Gede Gunawan
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12733

Abstract

This study investigates the synthesis and characterization of semiconducting materials derived from rice husk bio-activated by pineapple peel juice, presenting an eco-friendly and sustainable approach. The organic photo-active semiconducting material from rice husk ash (RHA) is synthesized. RHA was activated by immersion in the pineapple juice solution. Distinct structural disparities among RHA, Sunken Carbon nanomaterial (SCNM), and Floating Carbon Nanomaterial (FCNM) materials are revealed through SEM imaging, showcasing the tailored nature of each material. The SEM images also indicate the role of bromelain from the pineapple juice to provide defects on the RHA carbon surface. The crack on the nano particles on the surface of SCNM and FCNM were formed due to the bromelain electrostatic interaction with the surface. Elemental analysis indicates a higher probability of CuO and Si presence in SCNM, suggesting its potential for semiconductor extraction. The Cu to Si ratio implies photoactivity, confirmed by UV-Vis characterization showing absorption peaks in the UV region. FTIR analysis highlights enhanced polar interactions in SCNM and FCNM, attributed to the activation process involving bromelain in pineapple juice. The photoelectric effect testing shows FCNM and SCNM generates more electrical current as exposed to light which. The current was generated due to the electron transport phenomenon of CuO and Si content triggered by photons. The study provides insights into the materials' molecular structures and potential applications in sensors, energy devices, and semiconductor-related technologies, leveraging the unique properties of bio-derived nanomaterials for practical implementation.
Co-Authors A.A.A. Triadi, A.A.A. Aldri Frinaldi Cok Istri Putri Kusuma Kencanawati Dwidiani, Ni Made I .G. P. Agus Suryawan I Gusti Ketut Puja I Gusti Ngurah Nitya Santhiarsa I Ketut Adi Atmika I Ketut Adi Sugita I Ketut Jaya Lagawa I Ketut Suarsana I Made Gatot Karohika I Made Widiyarta I Made Widyarta I Nyoman Budiarsa . I Nyoman Gede Wardana I Nyoman Suarsana I Nyoman Suprapta Winaya I W BUDIARSA SUYASA I W. Y. Swara I Wayan Gede Arthana I Wayan Surata IWY Swara l Gusti Ngurah Janardana Nanda - Negara, D.N.K.P. Ni Made Dwidiani putri kusuma kencanawati Putu Lokantara Rizki Andika Putra Robby GDS Si Putu Gede Gunawan Tista Steven FS Suarsana, K. Sunu, P.W. Wayan Nata Septiadi Willy Satrio Nugroho Yustinus Hendro Mudiyarto