Materials Science Forum Vol. 1131

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class="page-name-block underline-begin"> <h1 class="page-name-block-text">Materials Science Forum Vol. 1131</h1> </div> <div class="clearfix title-details"> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>DOI:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="https://doi.org/10.4028/v-CAN2Wi">https://doi.org/10.4028/v-CAN2Wi</a></p> </div> </div> </div> </div> <div id="titleMarcXmlLink" style="display: none" class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>Export:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/MSF.1131/marc.xml">MARCXML</a></p> </div> </div> </div> </div> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>ToC:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/MSF.1131_toc.pdf">Table of Contents</a></p> </div> </div> </div> </div> </div> <div class="volume-tabs"> </div> <div class=""> <div class="volume-papers-page"> <div class="block-search-pagination clearfix"> <div class="block-search-volume"> <input id="paper-search" type="search" placeholder="Search" maxlength="65"> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/MSF.1131/2">2</a></li><li class="PagedList-skipToNext"><a href="/MSF.1131/2" rel="next">></a></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title <span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.-1">Preface</a> </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.3">The Low-Temperature Thermal Conductivity of Epoxy Resin Composites Enhanced by Graphene and Modified Alumina Hybrid Fillers</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Yue Xiang, Rong Jin Huang, Zheng Rong Zhou, Tao Wang, Li Shi, Wen Tao Sun, Lai Feng Li </div> </div> <div id="abstractTextBlock614921" class="volume-info volume-info-text volume-info-description"> Abstract: In recent years, polymer/ceramic composites with high thermal conductivity have been widely used in microelectronic devices, superconducting magnets and aviation, and further improving their thermal conductivity is a great challenge. In this work, spherical alumina nanoparticles were modified with 3-aminopropyltriethoxy-silane (APTES) successfully. Furthermore, the modified Al<sub>2</sub>O<sub>3</sub>(M-Al<sub>2</sub>O<sub>3</sub>)/Epoxy(EP) and Graphene(Gr)/M-Al<sub>2</sub>O<sub>3</sub>/EP composites were prepared and their properties were tested in the temperature range of 70 K-300 K. The results showed that the thermal conductivity of the composite with 1 wt% Gr and 60 wt% M-Al<sub>2</sub>O<sub>3</sub> hybrid filler is 15 times higher than that of pure epoxy at 70 K, which indicates its application prospect in thermal interface materials. </div> <div> <a data-readmore="{ block: '#abstractTextBlock614921', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 3 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.9">Tailoring SWCNT Elastic Properties for Enhanced Durability in Additive Manufactured Prosthetic Devices</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Moosa Salim M. Al-Kharusi, Majid Al-Maharbi </div> </div> <div id="abstractTextBlock615027" class="volume-info volume-info-text volume-info-description"> Abstract: This study focuses on the numerical estimation of the effective Young's modulus of single-walled carbon nanotubes (SWCNT) using a continuum mechanics approach tailored for additive manufacturing applications in prosthetic limbs. In our finite element model, the positions of carbon atoms within the SWCNT are represented as nodes linked by beam elements that embody the geometrical and elastic mechanical properties derived from interatomic forces. These forces are quantitatively assessed by equating them to the total interatomic potential energies of the SWCNT's molecular structure. Employing an equivalent continuum technique, we evaluate the effective elastic properties across various SWCNT configurations and benchmark our findings against existing numerical and experimental data from the literature. Our results, which align closely with published studies, demonstrate the isotropic behaviour of SWCNT and reveal a significant dependence of stiffness on the modelled wall thickness. These insights are critical for the development of enhanced prosthetic limbs through additive manufacturing, where material properties such as stiffness and durability are paramount. </div> <div> <a data-readmore="{ block: '#abstractTextBlock615027', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 9 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.15">Composites Recycling by Using Intumescent Flame-Retardant Concept</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Oussema Kachouri, Julien Bardon, David Ruch, Abdelghani Laachachi </div> </div> <div id="abstractTextBlock615001" class="volume-info volume-info-text volume-info-description"> Abstract: A structural composite material is obtained by incorporating continuous and strong fibres in a polymer matrix. Such a design leads to materials with exceptional mechanical properties over a very small density. This family of composite materials can be extended further by combining special designs of composite sub-parts, like in honeycomb structures. Thanks to their performances, these composites are increasingly used in a range of applications mainly in the energy, construction, automotive and aerospace sectors. However, it is very difficult to dismantle composite materials in multi-material structures for recycling purposes; currently, they are mainly incinerated to produce energy. The present paper proposes adding “smart chemical additives” during composite manufacturing and assembly, which will facilitate both the separation of multi-material structures into single blocks, and the separation of composite sub-parts into raw materials. This innovative “debonding on-demand” function provides a significant incentive to using composite materials in a circular economy, i.e. promoting the repair, reuse and recycling of these materials. </div> <div> <a data-readmore="{ block: '#abstractTextBlock615001', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 15 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.21">Manufacturing Aluminum-Based Nanocomposites via Stir-Squeeze Casting Combined with Ultrasonication</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Majid Al-Maharbi, Ziyad Al-Subhi </div> </div> <div id="abstractTextBlock614976" class="volume-info volume-info-text volume-info-description"> Abstract: This study successfully produced aluminum nanocomposites using a stir-squeeze casting process, both with and without ultrasonication (US) assistance. The matrix material utilized was scrap automobile wheel aluminum alloy (A356), with 1% SiC nano particles, averaging a size of 40 nm, serving as the reinforcement material. A comparison was made by also producing A356 aluminum casts with and without the use of US. The produced casts underwent thorough chemical and mechanical characterization, including optical and scanning microscopy, porosity measurement, hardness measurement, compression and tensile testing, as well as wear testing. Additionally, energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analyses were conducted to assess compositions and confirm the presence of SiC nano particles in the aluminum matrix. Porosity levels were slightly higher in the nanocomposite samples compared to pure matrix samples, attributed to the tendency of pore formation due to improper distribution of ceramic particles, resulting in clustering and agglomeration. However, significant reduction in porosity was observed with the application of ultrasonication, effectively breaking up clusters and agglomerations of reinforcement particles. Regarding mechanical properties, the A356+SiC sample with US exhibited the highest hardness (70.8 HRB), tensile strength (163.25 MPa), and compressive strength (387.2 MPa), along with the lowest abrasive wear loss (0.0017 g) among all types of casts produced in this study. </div> <div> <a data-readmore="{ block: '#abstractTextBlock614976', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 21 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.29">Effect of Iodine Doped Pentacene Thin Film on the Performance of Organic Light Emitting Diode</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Dhrubajyoti Saikia, Ranjit Sarma </div> </div> <div id="abstractTextBlock611424" class="volume-info volume-info-text volume-info-description"> Abstract: The study investigated the effect of iodine-doped pentacene film as a buffer layer in an organic light-emitting diode (OLED). In this study, an ITO (indium tin oxide)-based sample is used as a reference device for comparative purposes. In OLED devices, the buffer layers were deposited using the doping of iodine vapor with the pentacene materials under proper conditions. The thermal treatment of the doped pentacene film results in increasing the conductivity of the buffer layer. Surface morphology for the bilayer anode was carried out by FESEM (Field Emission Scanning Electron Microscope) analysis. In our work, maximum luminance of 2345 cd/m<sup>2</sup> and current efficiency of 5.4 cd/A are obtained, along with more stability performance under annealing treatment in the device structure of FTO/iodine-doped pentacene (30 nm)/TPD [N, N′-Bis(3-methyl phenyl)-N, N′-diphenylbenzidine] (44 nm)/Alq3 [Tris(8-hydroxyquinoline)aluminum(III)] (52 nm)/LiF (lithium fluoride) (5 nm)/Al (aluminum) (110 nm). </div> <div> <a data-readmore="{ block: '#abstractTextBlock611424', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 29 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.41">Recovery and Size-Tuning of Amorphous Silica from Geothermal Scales in Batangas, Philippines</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Mitch-Irene Kate Galvan Oyales, Kirk Benedict Beau T. Damian, Tiffany Louise B. Lao </div> </div> <div id="abstractTextBlock615010" class="volume-info volume-info-text volume-info-description"> Abstract: Scale deposits in geothermal power plants are well-known potential sources of minerals. Extensive research in mineral recovery is crucial due to the considerable variability in scale composition and geochemistry based on location. Geothermal scales from Batangas, Philippines, were used to synthesize size-modified amorphous silica (SiO<sub>2</sub>) via sol-gel method. Initial analyses employing x-ray fluorescence spectroscopy (XRF), total dissolved solids (TDS), electrical conductivity (EC), and pH measurements confirmed that the scale is rich in silica and salts at neutral pH. Then, the effect of varying scale concentration, precipitation pH, and aging time on the particle size distribution of recovered amorphous silica were investigated. Dynamic light scattering (DLS) for particle size analysis (PSA) revealed that the sample with 2.5% (w/v) scale precursor in NaOH and precipitated until pH 10 had the lowest average cumulant diameter (1.66 μm). Moreover, the synergy of precipitation pH and aging time was found to significantly affect the polydispersity index and cumulative diameter of precipitated SiO<sub>2 </sub>based on 2<sup>3</sup> factorial ANOVA at 0.05 significance level. X-ray diffractometry (XRD), Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) confirmed that the precipitates were amorphous SiO<sub>2 </sub>with spherical morphology. This study proves the viability of utilizing geothermal scales from Batangas, Philippines for the synthesis of amorphous SiO<sub>2</sub> with controlled particle size, which is a potential filler for composite materials. </div> <div> <a data-readmore="{ block: '#abstractTextBlock615010', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 41 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.49">A Parametric Study on the Stability, Geometry and Hardness of AISI 308LSi WAAM-GMAW</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Taiwo Ebenezer Abioye, Bankong Daniel Bankong, Oluwafemi Joshua Ogundipe, Oluwatobi Oluwayemisi Kusoro, Tunde Isaac Ogedengbe </div> </div> <div id="abstractTextBlock610851" class="volume-info volume-info-text volume-info-description"> Abstract: Wire arc additive manufacturing (WAAM) has been established to be an efficient and cost-effective additive manufacturing technique for fabricating functional metallic parts from scratch. However, there is need to determine optimal processing condition for each material system to produce high-quality parts. In this work, a parametric study of WAAM of AISI 308LSi was performed to determine the processing condition(s) at which single tracks of high dimensional accuracy, excellent geometry, no visible crack and pore, and high hardness required for high-quality multi-track deposition can be achieved. The track geometries were investigated using a combination of optical microscopy and image processing software. The microstructure and hardness of the deposited single tracks were examined using optical microscopy and Vickers hardness tester respectively. A process map predicting the process stability of WAAM of AISI 308LSi was developed within a process window. Continuous single tracks of high dimensional accuracy were produced from a stable deposition process. The process becomes unstable whenever the wire deposition volume per unit length of track is in excess of the available heat energy per unit length of track. The wire feed rate and traverse speed significantly influence the stability and geometry of the single tracks. The processing conditions at which single tracks of low wetting angle (<90◦), high aspect ratio (>1.5), high surface quality, and high hardness (close to the as-received material) can be deposited were determined. These processing conditions were considered suitable for the fabrication, surface modification and repair of functional engineering parts made of 308LSi stainless steel. </div> <div> <a data-readmore="{ block: '#abstractTextBlock610851', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 49 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.61">Optimization of FDM 3D Printer Process Parameters to Minimize Dimensional Errors with PLA Material Using Response Surface Methodology</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Apichit Maneengam, Tattapong Limlay, Tanongsak Kongsin, Tossaporn Assawarungsri, Wannalak Laotaweesub, Patpimol Suwankan, Kanlaya Ubontip </div> </div> <div id="abstractTextBlock611811" class="volume-info volume-info-text volume-info-description"> Abstract: This paper presents a response surface methodology to fit a second-order response surface model aimed to finding process parameters to minimize length error (LE) and diameter error of the cylindrical shafts (DE) in fused deposition modeling (FDM) using polylactic acid (PLA) material. The process parameters in this study included layer height (LH), which varied from 0.1 to 0.4 mm, and print speed (PS), which ranged from 20 to 60 mm/s, while other parameters were set to constant values. The results showed that optimal process parameters obtained in this study significantly lower dimensional errors than the initial parameterization recommended by UltiMaker Cura software. </div> <div> <a data-readmore="{ block: '#abstractTextBlock611811', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 61 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1131.67">Stabilizer Effects on the Gelation of Modified Recycled PET for 3D Printing Filament Application</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Nismar Parneam, Siriorn Isarankura Na Ayutthaya, Nathapong Sukhawipat, Seekharin Komonhirun </div> </div> <div id="abstractTextBlock611807" class="volume-info volume-info-text volume-info-description"> Abstract: This research identification gel types of the modified-recycled poly (ethylene terephthalate) (modified-rPET) filament, with and without the addition of heat stabilizer Pentaerythritol tetrakis(3-(3,5-di-<i>tert</i>-butyl-4-hydroxyphenyl) propionate (Irganox®1010). This research also identifies the gel types and studies thermal behavior of the modified-rPET filaments above, by using a hot-stage microscopy, and a differential scanning calorimetry, respectively. rPET flakes were dried to deplete the moisture. Then, they were mixed with additives and heat stabilizer (Irganox®1010) at 0 and 0.5 pph, Then, they were extruded to be compound using twin screw extruder. The compounds were extruded into filament by using filament extruder. The two temperature profiles were used. The first and the second temperature profiles from the feed zone to the die zone were 275-275-275<sup> o</sup>C and 290-290-290<sup> o</sup>C, respectively. The extrudate of modified-rPET with and without heat stabilizer, were investigated the type of gel and the thermal behavior of the modified-rPET filament. From this preliminary experiment, it was found that the “unmelt-gel” defect was found from the modified-rPET filament, without the addition of Irganox®1010. On the other hand, the “crosslinked gel” defect was found from the modified-rPET filament, with the addition of Irganox®1010. Therefore, the addition of heat stabilizer (Irganox®1010) may cause the “crosslinked gel” significantly. Our future work, we will investigate the effect of another stabilizer and chain extenders on the gelation behavior, to complete this clarification systematically. </div> <div> <a data-readmore="{ block: '#abstractTextBlock611807', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 67 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> <p>Showing 1 to 10 of 14 Paper Titles</p> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/MSF.1131/2">2</a></li><li class="PagedList-skipToNext"><a href="/MSF.1131/2" rel="next">></a></li></ul></div> </div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/open-access-partners">Open Access Partners</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2025 Trans Tech Publications Ltd. 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Materials Science Forum Vol. 1131 | Scientific.Net