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Journal articles on the topic 'Fabrication and finishing- Aluminium and copper'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Ghasempour-Mouziraji, Mehran, Daniel Afonso, and Ricardo Alves de Sousa. "A Short Review on the Wire-Based Directed Energy Deposition of Metals: Mechanical and Microstructural Properties and Quality Enhancement." Applied Sciences 14, no. 21 (2024): 9921. http://dx.doi.org/10.3390/app14219921.

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Wire-based directed energy deposition (WDED) is an emerging additive manufacturing process garnering significant attention due to its potential for fabricating metal components with tailored mechanical and microstructural properties. This study reviews the WDED process, focusing on fabrication techniques, mechanical behaviors, microstructural characteristics, and quality enhancement methods. Utilizing data from the Web of Science, the study identifies leading countries in WDED research and highlights a growing interest in the field, particularly in materials engineering. Stainless steel, titan

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2

Madhusudan, S., M. M. M. Sarcar, and N. R. M. R. Bhargava. "Fabrication and characterization of aluminium–copper composites." Journal of Alloys and Compounds 471, no. 1-2 (2009): 116–18. http://dx.doi.org/10.1016/j.jallcom.2008.04.025.

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3

Soda, H., C. K. Jen, G. Motoyasu, S. Okumura, A. Ohno, and A. McLean. "Fabrication and characterisation of aluminium clad aluminium–copper alloy cored rod." Materials Science and Technology 11, no. 11 (1995): 1174–79. http://dx.doi.org/10.1179/mst.1995.11.11.1174.

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4

O'Sullivan, Eugene J., Cristina T. Camagong, Ria Paranjape, Marinus Hopstaken, and Christian Lavoie. "An Investigation of Tin Electroless Deposition." ECS Meeting Abstracts MA2022-02, no. 23 (2022): 958. http://dx.doi.org/10.1149/ma2022-0223958mtgabs.

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Electroless metal/alloy deposition can be an efficient process in certain areas of microelectronic fabrication. In fact, it is often easier to obtain coatings of uniform thickness and composition using electroless deposition than with electrodeposition, since one does not have the current density uniformity problem of the latter. For example, we were able to develop a Ni(P) process as a replacement for the final aluminum interconnect level, significantly decreasing wafer processing cycle time, by selectively depositing a Ni(P) capping layer on the Cu bitline wiring level. In STTM MRAM, we succ

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Loganathan, Arulmurugan, and Ilangkumaran Mani. "Experimental investigations on Thermal Performance of Copper with Aluminium Based Finned Heat sinks for Electronics Cooling System." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 12 (2016): 4582–87. http://dx.doi.org/10.24297/jac.v12i12.787.

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An Experimental investigation on the thermal performance of copper with aluminium based finned heat sinks for electronics cooling system was studied. The heat sinks have different material proportions containing major constituent of aluminium and minor constituent of copper. Considered with straight finned heat sink for the experiments for its easiness in fabrication and efficient heat transfer properties. The observational results for aluminium with copper alloy are compared with pure aluminium heat sink. Heat sink geometry, fin pitch and its height were taken from the commercially available

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Mamalis, A. G., N. M. Vaxevanidis, A. Szalay, and J. Prohaszka. "Fabrication of aluminium/copper bimetallics by explosive cladding and rolling." Journal of Materials Processing Technology 44, no. 1-2 (1994): 99–117. http://dx.doi.org/10.1016/0924-0136(94)90042-6.

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Kawashima, Satoshi, та Kazutaka Tajima. "Advanced Chemical Processes for Semi-additive PWB fabrication for Fine Line Formation Targeting Line and Space=5μm/5μm". International Symposium on Microelectronics 2015, № 1 (2015): 1–4. http://dx.doi.org/10.4071/isom-2015-tha22.

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Demand of powerful & fast computing requires the packaging configured with finer lines. The current requirement for Line and Space (L/S) is around 10μm/10μm, it will go down to less than that and 5 μm/5 μm is industry's target in our site. To achieve this miniaturization, a number of improvements are ongoing in equipment, material and chemical for surface finishing process. It seems there is a threshold which requires non-contiguous improvement for the miniaturization. The improvement in surface finishing process requires finer surface roughening for Dielectric material, selective dissolut

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Thompson, George E. "The Role of Alloying Elements on the Surface Treatment and Finishing of Aluminium." Materials Science Forum 519-521 (July 2006): 615–20. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.615.

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The influence of alloying elements, deliberate or otherwise, and material processing on the performance of aluminium during surface treatment and finishing are considered. Thus, with a significant focus on copper, but with consideration of other elemental additions, the behaviour of aluminium during growth of oxide at ambient temperature, etching or pickling, conversion coating and anodizing, essential processes for generation of fit-for-purpose products, is highlighted. Further, such processes generate, modify or transform the initially present air-formed alumina film. Consequently, with know

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Lin, Jia-Horng, Bing-Chiuan Shiu, Ching-Wen Lou, and Yuan-Jen Chang. "Design and Fabrication of Smart Diapers with Antibacterial Yarn." Journal of Healthcare Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/8046134.

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In this study, intelligent eco-diapers are made by combining antibacterial yarns coated with quaternary ammonium salts with conductive yarns to improve caretaking for urinary incontinence. The combination of conductive yarns and sensors can detect the moisture content in eco-diapers, and an alarm is sent when moisture is significant. A wireless module is used to send detected signals to a smartphone or tablet PC via the Internet. This concept is used for a scenario in which nurses do not randomly check on patients in a long-term care institution. When used offline, eco-diapers can send caregiv

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Ghane, Mohammad, and Ehsan Ghorbani. "Investigation into the UV-Protection of Woven Fabrics Composed of Metallic Weft Yarns." Autex Research Journal 16, no. 3 (2016): 154–59. http://dx.doi.org/10.1515/aut-2015-0021.

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Abstract The destructive effects of sun UV radiation on human skins are now very clear to everyone. Most of the present studies were focused on the fabrics’ structural parameters such as density, warp and weft yarns finenesses, fabric pattern and printing or finishing treatments applied to the fabrics. The aim of this work is achieving a technique through which the produced fabrics possess a higher UV-protection ability. For this purpose, two different metals including aluminium and copper yarns were employed in fabrics production process and their effects on UV-protection ability of the produ

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Chung, C. ‐K, C. Y. Yang, M. W. Liao, and S. L. Li. "Fabrication of copper nanowires using overpotential electrodeposition and anodic aluminium oxide template." Micro & Nano Letters 8, no. 10 (2013): 579–81. http://dx.doi.org/10.1049/mnl.2013.0269.

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Mohammed, Ali Musa, Yi Wang, Talal Skaik, Sheng Li, and Moataz Attallah. "Conductivity measurement using 3D printed re-entrant cavity resonator." Measurement Science and Technology 33, no. 5 (2022): 055017. http://dx.doi.org/10.1088/1361-6501/ac5134.

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Abstract A technique for measuring effective conductivity of conductor materials using 3D printed re-entrant cavity resonator is proposed. An analytical formula for the extraction of the effective conductivity has been derived in relation to energy stored in the volume of the cavity geometry. A method of resonant cavity characterisation of material based on microwave losses is utilised for the measurements. The approach offers a simplified analytical method and also supports the measurements of sample with arbitrary thickness. Samples produced from three different manufacturing processes of co

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Waqar, Tayyab, and Sezgin Ersoy. "Design and Analysis Comparison of Surface Acoustic Wave-Based Sensors for Fabrication Using Additive Manufacturing." Journal of Nanomaterials 2021 (June 12, 2021): 1–12. http://dx.doi.org/10.1155/2021/5598347.

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Sensors have become an integral part of our everyday lives by helping us converting packets of data to make important decisions. Due to this reason, researches are done constantly to improve the fabrication processes of sensors by making them more user-friendly, less time-consuming, and more cost-effective. The application of any fabrication solution that offers those advantages will have a major impact on the manufacturing of modern sensors. To address this issue, a 3D printed Surface Acoustic Wave (SAW) temperature sensor is presented in this paper. The modelling and analysis of such a senso

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Vedrtnam, Ajitanshu, and Anuj Kumar. "Fabrication and wear characterization of silicon carbide and copper reinforced aluminium matrix composite." Materials Discovery 9 (September 2017): 16–22. http://dx.doi.org/10.1016/j.md.2018.01.002.

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Guedes, Mafalda, José Maria F. Ferreira, and Alberto C. Ferro. "A Study on CuO-Al₂O₃ Infiltration by Aluminium." Materials Science Forum 636-637 (January 2010): 571–77. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.571.

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This paper reports preliminary studies regarding a new fabrication process for aluminium alloy matrix particulate reinforced composites, which uses ceramic preforms with alumina and tailored amounts of reactive copper oxide, CuO. An Al2O3-CuO mixture with 75 mol% CuO was selected, aiming at a 10-40vol% reinforcement phase fraction in the final composite, after aluminium infiltration. Molten aluminium infiltration progress was studied as a function of ceramic’s composition, doping, and infiltration time. The resulting microstructures were investigated by OM, SEM, FESEM and EDS in order to estab

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Gu, Feng, Chorng Haur Sow, Guo Qin Xu, and Siau Gek Ang. "Fabrication and Field Emission Properties of Poly-CuTAPc Nanowires and Nanotubes." Australian Journal of Chemistry 62, no. 9 (2009): 1007. http://dx.doi.org/10.1071/ch09233.

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Poly-copper tetraaminophthalocyanine (CuTAPc) nanowires and nanotubes were successfully fabricated on porous anodic aluminium oxide (AAO) templates by electropolymerization and characterized. The product of electropolymerization, whether as nanowires or nanotubes, is a function of the monomer concentration and template pore size. The morphology and field emission properties of these nanostructures were studied for investigation of potential application as field emitters. They show interesting turn-on field, maximum current density and enhancement factor, comparable to many other organic nanoma

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Guimarães, Marcos de Aguiar, Givanildo Alves dos Santos, Mauricio S. Nascimento, et al. "Study on the Wear of Cutting-Tools Used in Dry Machining of Cu-10wt%Al-5wt%Ni-5wt%Fe Alloy." Defect and Diffusion Forum 413 (December 17, 2021): 194–200. http://dx.doi.org/10.4028/www.scientific.net/ddf.413.194.

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Aluminium bronze alloys are special copper alloys that have a machinability rate from 20 to 40% compared to free cutting brasses, so the cutting parameters and type of tools suitable for machining of these materials may be very different for other copper alloys. Also, due to the relative high costs of the raw material, the absence of contamination of the chips by cutting fluids improve its intrinsic resales value and encourage the use of machining process without coolant. The aim of this work is to evaluate the tool wear mechanisms in the finishing machining of the Cu-10wt%Al-5wt%Ni-5wt%Fe alu

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Meraz, Redoy Masum, and Bably Das. "Fabrication and Analysis of Mechanical Properties of Aluminium-Magnesium Composite." SciEn Conference Series: Engineering 1 (May 7, 2025): 103–6. https://doi.org/10.38032/scse.2025.1.19.

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Increasing demand for the superior material properties have turned our thinking from a single material to composite. Traditionally composite material consists of continuous phase of the matrix bearing the discontinuous phase of the reinforcement that carry the main load. Commonly used matrix materials for Metal Matrix Composites (MMC) are aluminum, magnesium, titanium, copper etc. Among various MMCs, aluminum metal matrix composites (AMMC) have distinct properties like better strength, lightweight corrosion resistance. Addition of reinforced metals in the pure aluminum improves the mechanical

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Dixit, Nitesh Kumar, Rajeev Srivastava, and Rakesh Narain. "Improving surface roughness of the 3D printed part using electroless plating." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 5 (2017): 942–54. http://dx.doi.org/10.1177/1464420717719920.

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The effect of electroless metallic coating on 3D printed acrylonitrile–butadiene–styrene plastic parts surface has been studied. Owing to its excellent toughness, good-dimensional reliability, good-process capability, chemical resistance and cost-effectiveness, acrylonitrile–butadiene–styrene is used for fabrication of parts using a 3D open source printer. These parts are further metallic coated using electroless copper deposition technique. Two different surface preparation processes, namely aluminium paint paste and aluminium epoxy paste have been used for electroless coating. After the surf

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Yasuda, Hideyuki, Itsuo Ohnaka, B. K. Dhindaw, et al. "Fabrication of Porous Aluminium and Copper Media by Using Monotectic Solidification under a Magnetic Field." Materials Science Forum 512 (April 2006): 289–94. http://dx.doi.org/10.4028/www.scientific.net/msf.512.289.

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Unidirectional solidification of Al-In, Cu-Pb and Cu-Pb-Al monotectic alloys was performed under static magnetic fields up to 10T for formation of the regularly aligned-rod structure. mThe imposition of static magnetic fields exceeding 4T suppressed movement of the In liquid droplets at the Al solidifying front and enhanced the engulfment of the In droplets into the front. As a result, the eutectic-like structure was obtained in the Al-10 and 15at%In hypermonotectic alloys. The micro X-ray tomography indicated that the continuous In rods with diameters of 10-20 µm were aligned parallel to each

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Veselovsky, A. A., V. V. Erofeev, and I. P. Troyanovskaya. "Improving the Quality of Friction Surface by Applying Antifriction Materials to Them." IOP Conference Series: Earth and Environmental Science 949, no. 1 (2022): 012133. http://dx.doi.org/10.1088/1755-1315/949/1/012133.

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Abstract The article investigated the process of applying antifriction coatings to the surface of hardened cast iron gear wheels. The diffusion coating of cast iron wheels with vanadium greatly strengthened the surface and increased its wear resistance. Aluminium, tin bronze and copper were used as antifriction materials. The coating was applied with metal brushes. The brushes tore off individual fragments of anti-friction metal particles and smeared them over the surface of the coated product. Research results have confirmed the acceptability of this method instead of expensive finishing oper

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Aldeiturriaga, Naiara, Itziar Fraile, Erika Dominguez, Aitor Zuriarrain, Pedro José Arrazola, and Daniel Soler. "Effect of Material Extrusion Method on the Microstructure and Mechanical Properties of Copper Parts." Metals 14, no. 8 (2024): 941. http://dx.doi.org/10.3390/met14080941.

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In the present study, three extrusion-based Additive Manufacturing (AM) technologies were considered: Fused Filament Fabrication (FFF), Pellet Extrusion Process (PEP) and Atomic Diffusion Additive Manufacturing (ADAM). In order to compare these technologies, the same initial material was employed: a copper filament commercialized by Markforged® (Waltham, MA, USA). The copper filament was employed as received for ADAM and FFF technologies and shredded for PEP technology. Different printing parameters were studied for each technology (except for ADAM, which does not allow it) and the manufacture

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Wilson, Keith, Cristian A. Marocico, Esteban Pedrueza-Villalmanzo, Christopher Smith, Calin Hrelescu, and A. Louise Bradley. "Plasmonic Colour Printing by Light Trapping in Two-Metal Nanostructures." Nanomaterials 9, no. 7 (2019): 963. http://dx.doi.org/10.3390/nano9070963.

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Structural colour generation by nanoscale plasmonic structures is of major interest for non-bleaching colour printing, anti-counterfeit measures and decoration applications. We explore the physics of a two-metal plasmonic nanostructure consisting of metallic nanodiscs separated from a metallic back-reflector by a uniform thin polymer film and investigate the potential for vibrant structural colour in reflection. We demonstrate that light trapping within the nanostructures is the primary mechanism for colour generation. The use of planar back-reflector and polymer layers allows for less complex

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Imai, Ken, Toshi Taka Ikeshoji, Kazuya Nakamura, Motonori Nishida, Yuji Sugitani, and Hideki Kyogoku. "Fabrication of Cu-Al-Ni Shape Memory Alloy by Selective Laser Melting Process." Materials Science Forum 941 (December 2018): 1570–73. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1570.

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Additive manufacturing (AM) is a prominent technology in the industrial fields such as aerospace, medical, automotive and so on. Especially, selective laser melting (SLM) process is available to create three-dimensional complicated structures of various alloys such as stainless steel, titanium alloy, aluminium alloy, nickel-based superalloy and so on. And also, copper and copper alloys are used as a material for products with complicated shape, electrical components, and a heat exchanger because of having the high electrical conductivity and the high thermal conductivity. It is known that copp

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Fang, Lijia, Jing Huang, Yi Liu, Botao Zhang, and Hua Li. "Cored-wire arc spray fabrication of novel aluminium-copper coatings for anti-corrosion/fouling hybrid performances." Surface and Coatings Technology 357 (January 2019): 794–801. http://dx.doi.org/10.1016/j.surfcoat.2018.10.094.

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H. Mustafa, N., N. N. A. Basir, R. E. Ibrahim, et al. "Characterization of in Situ Zirconium Diboride (Zrb2) Reinforced by Aluminium-Copper (Al-Cu) Metal Matrix Composites." International Journal of Engineering & Technology 7, no. 4.14 (2019): 406. http://dx.doi.org/10.14419/ijet.v7i4.14.27694.

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Aluminium matrix composites by way of in-situ reaction has arisen as a preference conducive to knock out imperfections and defects exiting within ex situ MMC. In the present work, Al-Cu-ZrB2 have been develop through in situ reaction which boost mechanical properties over dispersion strengthening together with grain refinement obtained by the existence of each particulates inside the melt all along solidification. Al-Cu reinforced among different proportion of ZrB2 (0, 3 and 6 wt. %) synthesized using in situ fabrication at 800 °C of molten aluminum-copper alloys by inorganic salts K2ZrF6 toge

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Soh, E., J. H. Teoh, M. Mathialagan, et al. "Mycelium-metal hybrids: Exploring fabrication and application for reconfigurable design structures." IOP Conference Series: Earth and Environmental Science 1372, no. 1 (2024): 012066. http://dx.doi.org/10.1088/1755-1315/1372/1/012066.

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Abstract Mycelium-bound composites (MBCs) are materials grown by fungi onto lignocellulosic substrates. MBCs are a low-cost, lightweight, valorised biomass with promising properties concerning acoustics, heat insulation and fire resistance, among others. These properties make MBCs interesting as a sustainable alternative to currently existing fossil-fuel-derived products. However, MBCs lack properties such as mechanical strength or other functional properties like electrical conductivity which could widen their range of applications. In this work, the mycelium from Pleurotus ostreatus is grown

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Klarić, Štefanija, Zlatko Botak, Damien J. Hill, Matthew Harbidge, and Rebecca Murray. "Application of a Cold Spray Based 3D Printing Process in the Production of EDM Electrodes." Tehnički glasnik 14, no. 1 (2020): 27–31. http://dx.doi.org/10.31803/tg-20190719094329.

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Cold spray process principles allow the production of near-net-shape metal parts with a fast layer deposition by using 3D printing techniques via supersonic 3D deposition (SP3D). This innovative additive manufacturing process allows an easy and quick production of copper and aluminium parts with future possibilities to expand materials and alloys. The speed and materials enable the application of this cold spray based 3D printing process for the production of tools. In this paper, Electrical Discharge Machining (EDM) electrodes were fabricated by using SP3D to investigate its application in to

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ISAAC, KWABENA AGYEI, JOE ADU-AGYEM DR., and AMPONSEM P. "Female Genital Mutilation: Design and Fabrication of a Wall Plaque for Awareness Creation." International journal of innovative research and development 1, no. 4 (2012): 414–29. https://doi.org/10.5281/zenodo.4012392.

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This research designs and fabricates a metal mosaic wall plaque which is aesthetically pleasing and durable to complement other means of awareness creation of Female Genital Mutilation (FGM). Metal Scraps such as milk tins, canned mineral tins, pieces of alum mum, copper and brass sheets etc. were used for the plaque depending on the color to be depicted in the scene using Metal Mosaic Technique. The Experimental and Descriptive research methods based on quantitative and qualitative approaches were employed in the study. The plaque as was hypothesized thus, from the designing stage, fabricatio

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Nakajima, Hideo, Takuya Ide, and Song Youl Kim. "Fabrication of Porous Metals with Directional Pores through Solidification of Gas-Dissolved Melt." Materials Science Forum 620-622 (April 2009): 785–90. http://dx.doi.org/10.4028/www.scientific.net/msf.620-622.785.

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Porous metals with long cylindrical pores aligned in one direction were fabricated by unidirectional solidification using pressurized gas (hydrogen) method (PGM) and thermal decomposition method (TDM). The pores are evolved from insoluble gas when the molten metal dissolving the gas is solidified. In the conventional PGM, the hydrogen pressurized in a high-pressure chamber is used as the dissolving gas. However, the use of high-pressure hydrogen is not desirable because of inflammable and explosive gas, in particular, for scaling up to mass production of lotus metals. In order to overcome this

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Alves Silva, Ana Elisa, Emanuele Barborini, Damien Lenoble, Hana Mallek, Thomas Devahif, and Didier Arl. "Study and Fabrication of Cu-Composites for High Ampacity Materials." ECS Meeting Abstracts MA2025-01, no. 62 (2025): 2977. https://doi.org/10.1149/ma2025-01622977mtgabs.

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It is predicted that a commercial airplane is stroke by a lightning strike once a year, making this a common phenomenon, and consequently a threat to flight safety, since the electric discharge caused by the lightning strike can cause the vaporization of both metal cables and metal components on a non-protected airplane. Copper has always been a popular choice regarding various applications because of its remarkable electrical and thermal conductivities, 5.8x105 S cm-1 and 401 W m-1K-1 at 27 oC, respectively. While copper and aluminium mesh were the materials mostly used on airframes with the

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Abd Azam, Arman, Muhammad Mohamed Salleh, Mohamad Zaky Chumari, et al. "Comprehensive Development of a Jig for Wind-Powered Piezoelectric Energy Harvesting Systems." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 130, no. 1 (2025): 201–10. https://doi.org/10.37934/arfmts.130.1.201210.

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Piezoelectric energy harvesters using wind-induced vibrations are efficient at generating micro-energy. This research focused on designing and developing a small jig harvester utilizing a 100-degree bluff body attached to an aluminium substrate to identify an optimal combination for low wind speed conditions. The small-scale piezoelectric wind energy harvester (SSPWEH) was designed using 3D CAD software. The prototype was then fabricated using three different methods: 3D printing, manual fabrication, and modification of existing products. Finally, the prototype underwent rigorous testing in wi

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Nakajima, Hideo. "Fabrication of Porous Metals with Directional Pores through Unidirectional Solidification of Gas-Dissolved Melt." Materials Science Forum 654-656 (June 2010): 1452–55. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1452.

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Lotus-type porous metals with long cylindrical pores aligned in one direction are fabricated by unidirectional solidification through thermal decomposition method (TDM). The pores are evolved from insoluble gas when the molten metal dissolving the gas is solidified. In the conventional pressurized gas method, hydrogen pressurized in a high-pressure chamber is used to dissolve hydrogen in the melt. However, the use of high-pressure hydrogen is not desirable because of its inflammability and explosive nature. This is particularly true when scaling up to mass production of lotus/Gasar metals. In

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Pal, Vijay Kumar, and Anuj Kumar Sharma. "Complex shaped micro-channels generation using tools fabricated by AWJ milling process." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 236, no. 1 (2021): 194–201. http://dx.doi.org/10.1177/09544089211053684.

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Fabrication of complex shape micro-channels is a major challenge for manufacturing industries. Currently in commercial applications, lithography and non-conventional machining processes like lasers, electro-discharge machining (EDM) and chemical etching are commonly used for fabrication of these channels. In the present work, a novel Abrasive water jet (AWJ) milling based tool fabrication strategy has been proposed and implemented to make micro-tools (die/ electrode). The path strategy for jet movement is considered in a manner to selectively remove metal from a piece of material such that the

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Althuwayb, Ayman A., Mohammad Alibakhshikenari, Bal S. Virdee, Harry Benetatos, Francisco Falcone, and Ernesto Limiti. "Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications." Electronics 10, no. 9 (2021): 1120. http://dx.doi.org/10.3390/electronics10091120.

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This paper presents the design of a high-performance 0.45–0.50 THz antenna on chip (AoC) for fabrication on a 100-micron GaAs substrate. The antenna is based on metasurface and substrate-integrated waveguide (SIW) technologies. It is constituted from seven stacked layers consisting of copper patch–silicon oxide–feedline–silicon oxide–aluminium–GaAs–copper ground. The top layer consists of a 2 × 4 array of rectangular metallic patches with a row of subwavelength circular slots to transform the array into a metasurface. This essentially enlarges the effective aperture area of the antenna. The an

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Knapiński, Marcin, Teresa Bajor, Anna Kawałek, and Grzegorz Banaszek. "Analysis of Copper Welding Parameters during the Manufacture of Tubular Profiles Using Unconventional Extrusion Processes." Materials 17, no. 19 (2024): 4737. http://dx.doi.org/10.3390/ma17194737.

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In recent years, there has been a lack of information in the literature regarding the extrusion and connection of closed profiles from oxygen-free copper in bridge dies. Available studies contain information on the processes of extrusion and connection of profiles from aluminium alloys and various types of steel. However, there is a lack of detailed data on the values of technological parameters for which copper is joined in the extrusion process. Therefore, one of the goals of this work is to fill the gap in the literature regarding the extrusion of oxygen-free copper in bridge dies. In this

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Jahnes, Christopher, Eric Huenger, and Scott Kisting. "Evaluation of Low Stress Photo-Sensitive Spin On Dielectric Layers for Through Silicon Via (TSV) Copper Redistribution Layers." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2011, DPC (2011): 000666–98. http://dx.doi.org/10.4071/2011dpc-ta32.

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To increase performance of semiconductor devices advances in packaging such as chip stacking (3D) and silicon carrier technologies (SoC) are being developed. Adaptation of these packaging fabrication methods offers the ability to incorporate functionality as well as provide memory and power distribution on one IC with increased signal bandwidth. An enabling element in both the stacking and silicon carrier technologies is through silicon vias (TSV) which electrically connect dies to a silicon carrier or via stacked chips (1). Creation of TSV involves via fabrication, wafer thinning and back sid

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Somov, Pavel A., Eugene S. Statnik, Yuliya V. Malakhova, et al. "On the Grain Microstructure–Mechanical Properties Relationships in Aluminium Alloy Parts Fabricated by Laser Powder Bed Fusion." Metals 11, no. 8 (2021): 1175. http://dx.doi.org/10.3390/met11081175.

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Recent years witnessed progressive broadening of the practical use of 3D-printed aluminium alloy parts, in particular for specific aerospace applications where weight saving is of great importance. Selective laser melting (SLM) is an intrinsically multi-parametric fabrication technology that offers multiple means of controlling mechanical properties (elastic moduli, yield strength, and ductility) through the control over grains size, shape, and orientation. Targeted control over mechanical properties is achieved through the tuning of 3D-printing parameters and may even obviate the need of heat

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Santhosh, N., N. Manjunath, and H. R. Mahesh. "Potentiodynamic Corrosion Characterization of Hybrid Aluminium Composites for Advanced Engineering Applications." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 1434–37. https://doi.org/10.35940/ijeat.C5025.029320.

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Corrosion characterization of Aluminium composites is a significant study planned for assessing the capability of utilizing the materials for aviation and automobile parts. Aluminium 5083 is a particular class of alloys which is known for its corrosion resistance in extraordinary conditions and is utilized in aerospace components. However, the experimentations on impact of reinforcements, for example, the effect of Silicon carbide and Flyash on corrosion properties of Aluminium 5083 alloys is still in its incipient stage and not much literature is available outlining the corrosion attributes.

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Perez-Rodriguez, Jose Luis, Antonio Albardonedo, Maria Dolores Robador, and Adrian Duran. "Spanish and Portuguese Gilding Threads: Characterization Using Microscopic Techniques." Microscopy and Microanalysis 24, no. 5 (2018): 574–90. http://dx.doi.org/10.1017/s1431927618015167.

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AbstractGilding threads collected from Spanish and Portuguese palaces and from the embroideries and adornments of sculptures of the Virgin and Christ that form part of Sevillian Holy Week were analyzed and compared (20 artifacts were evaluated). The study covered a broad time period with examples from the 13th to 14th centuries, 18th to 20th centuries, and also including modern embroideries. A combination of scanning electron microscopy and energy-dispersive X-ray spectroscopy was used. The knowledge of the layered structures of the threads has provided very valuable information regarding the

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Ručman, Stefan, Winita Punyodom, Jaroon Jakmunee, and Pisith Singjai. "Inducing Crystallinity of Metal Thin Films with Weak Magnetic Fields without Thermal Annealing." Crystals 8, no. 9 (2018): 362. http://dx.doi.org/10.3390/cryst8090362.

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Since the discovery of thin films, it has been known that higher crystallinity demands higher temperatures, making the process inadequate for energy-efficient and environmentally friendly methods of thin film fabrication. We resolved this problem by sparking metal wires in a 0.4 Tesla magnetic field at ambient conditions under ultra-pure nitrogen flow to replace the annealing of thin films, and thus designed an environmentally friendly and energy-efficient thin film fabrication method. We employed grazing incidence X-Ray Diffraction spectroscopy to characterize crystallinity of Iron, Nickel, C

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Olodu, Dickson David, Faith Onosetale Aluya, Salvation Walters, and Blessing Aanuoluwapo Falobi. "Design and Fabrication of a Locally Made Plastic Shredder." ABUAD Journal of Engineering Research and Development (AJERD) 8, no. 1 (2025): 226–39. https://doi.org/10.53982/ajerd.2025.0801.24-j.

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Plastic waste management is a growing environmental concern due to the increasing production and disposal of plastic materials, which contribute to pollution and ecological degradation. Conventional plastic shredders are often expensive and inaccessible to small-scale recyclers, necessitating the development of cost-effective and locally fabricated alternatives. The project focuses on designing and fabricating a locally made plastic shredder that addresses plastic waste management challenges. The methodology involved a series of steps including needs assessment, literature review, conceptual a

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Butt, Javaid, and Raghunath Bhaskar. "Investigating the Effects of Annealing on the Mechanical Properties of FFF-Printed Thermoplastics." Journal of Manufacturing and Materials Processing 4, no. 2 (2020): 38. http://dx.doi.org/10.3390/jmmp4020038.

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Fused filament fabrication (FFF) is a cost-effective additive manufacturing method that makes use of thermoplastics to produce customised products. However, there are several limitations associated with FFF that are adversely affecting its growth including variety of materials, rough surface finish and poor mechanical properties. This has resulted in the development of metal-infused thermoplastics that can provide better properties. Furthermore, FFF-printed parts can be subjected to post-processes to improve their surface finish and mechanical properties. This work takes into consideration two

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Jacob, Johnson, Dejana Pejak Simunec, Ahmad E. Z. Kandjani, Adrian Trinchi, and Antonella Sola. "A Review of Fused Filament Fabrication of Metal Parts (Metal FFF): Current Developments and Future Challenges." Technologies 12, no. 12 (2024): 267. https://doi.org/10.3390/technologies12120267.

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Fused filament fabrication (FFF) is the most widespread and versatile material extrusion (MEX) technique. Although powder-based systems have dominated the metal 3D printing landscape in the past, FFF’s popularity for producing metal parts (“metal FFF”) is growing. Metal FFF starts from a polymer–metal composite feedstock and proceeds through three primary stages, namely shaping (i.e., printing), debinding, and sintering. As critically discussed in the present review, the final quality of metal FFF parts is influenced by the characteristics of the composite feedstock, such as the metal loading,

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BÉG, O. ANWAR, M. FERDOWS, S. SHAMIMA, and M. NAZRUL ISLAM. "NUMERICAL SIMULATION OF MARANGONI MAGNETOHYDRODYNAMIC BIO-NANOFLUID CONVECTION FROM A NON-ISOTHERMAL SURFACE WITH MAGNETIC INDUCTION EFFECTS: A BIO-NANOMATERIAL MANUFACTURING TRANSPORT MODEL." Journal of Mechanics in Medicine and Biology 14, no. 03 (2014): 1450039. http://dx.doi.org/10.1142/s0219519414500390.

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Laminar magnetohydrodynamic Marangoni-forced convection boundary layer flow of a water-based biopolymer nanofluid containing nanoparticles from a non-isothermal plate is studied. Magnetic induction effects are incorporated. A variety of nanoparticles are studied, specifically, silver, copper, aluminium oxide and titanium oxide. The Tiwari–Das model is utilized for simulating nanofluid effects. The normalized ordinary differential boundary layer equations (mass, magnetic field continuity, momentum, induced magnetic field and energy conservation) are solved subject to appropriate boundary condit

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Suzuki, Kenta, Shinji Kumai, Kenji Tokuda, et al. "Solidification Structure and Casting Defect in a High-Speed Twin-Roll Cast A6022 Aluminium Alloy with Various Fe Contents." Materials Science Forum 519-521 (July 2006): 1821–26. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.1821.

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Closed-loop recycling should be promoted for wrought aluminum alloy scraps including impurity iron in order to use natural resources effectively. Fabrication of the alloy strip using a high rate of cooling is a promising method for reducing the detrimental effects of impurity iron. In the present study, strips of A6022 aluminum alloy with various Fe contents of up to 1.5 mass% were fabricated by a vertical-type, high-speed, twin-roll caster. The caster used in the study was equipped with a pair of water-cooled, pure copper rolls, and a cooling slope upstream of the rolls. The strips exhibited

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Aan, Sudarwanto, Dwi Wulandari Novita, Cahyana Agung, Adi Prabowo Rahayu, and Jati Purnomo Arif. "The Transformation of Batik Motif: Transforming Interior Spaces to be More Aesthetic with Batik Patterned Metal Ceilings." International Journal of Social Science and Human Research 07, no. 12 (2024): 8857–62. https://doi.org/10.5281/zenodo.14285186.

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Batik continues to evolve beyond its traditional function. This study explores the innovative transformation of batik motifs into metal ceilings as a representation of the integration of traditional aesthetics with modern technology in contemporary interior design. The main objective of the study is to analyse the potential for developing batik-patterned metal ceilings that combine cultural values with technological innovation. The research methodology uses a mixed qualitative and quantitative approach, including literature studies, design observations, and manufacturing technology experiments

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Raj, Kumar* 1. Vedant Singh 2. "INFLUENCE OF PROCESS PARAMETERS ON MECHANICAL PROPERTIES OF ALLUMINIUM ALLOY AA 6063 DURING FRICTION STIR WELDING." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 150–58. https://doi.org/10.5281/zenodo.1003073.

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Friction stir welding (FSW) is a novel solid state welding process for joining metallic alloys and has been employed in several industries such as aerospace and automotive for joining aluminum, magnesium and copper alloys. The various parameters such as rotational speed, welding speed, and plunge depth etc. play vital role in FSW process in order to analyze the weld quality. The aim of this study is to investigate the effect of rotational speed, welding speed, and plunge depth on weld quality. Friction stir welds find use for structural and other fabrication industries. This experimentation wo

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HAASE, ANJA, ELKE KRAKER, JOACHIM KRENN, et al. "ORGANIC PHOTODIODES ON PRINTED ITO COATINGS." International Journal of High Speed Electronics and Systems 20, no. 04 (2011): 787–99. http://dx.doi.org/10.1142/s0129156411007057.

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We describe the fabrication and characterization of organic photodiodes on solution cast ITO (tin doped indium oxide) bottom electrodes. ITO coatings were produced by gravure printing process on PET and PEN substrates. The sheet resistance could be decreased by heat treatment at 120°C under forming gas atmosphere ( N 2/ H 2) to 1.5 kΩ. The transmission of the ITO coated PET and PEN substrates is more than 80% in the visible range. The printed films were hardened under UV-irradiation at low temperatures (< 130°C) and used as the bottom electrode of an organic photodiode (OPD), consisting of

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Degtyareva, A. D. "Technology for the production of sickles and knives of the Petrovka Culture of the Southern Trans-Urals (by the results of metallographic analysis)." VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, no. 4(63) (December 15, 2023): 39–52. http://dx.doi.org/10.20874/2071-0437-2023-63-4-3.

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The data of the metallographic study of sickles and knives (37 pcs) of the Petrovka Culture from the Southern Trans-Urals and the Middle Tobol River basin of the 19th–18th centuries BC are reported. The implements originate from settlements (Ustye 1, Kulevchi 3, Starokumlyak, Kamyshnoe 2, Ubagan 2, Nizhneingaly 3) and burial complexes (Ozernoe 1, Krivoye Ozero, Verkhnyaya Alabuga). The reconstruction of the manufacturing technology of the Petrovka Culture tools from the Southern Trans-Urals was carried out by both taking into account the results of the surface visual inspection, as well as by

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