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1862 articles for “electronic”
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Metal Matrix Composites: Materials with the best property combination
Abstract: AbstractMetal matrix composites have been emerging out to be the most sought after materials in the field of Metallurgy and Materials Engineering. The basic driving force behind their wide applications is the fusion of ductile nature of metallic constituent and strong ceramic phases. This combination would always yield a structure with good toughness and longer service life. Aluminum-Silicon Carbide (SiC/Al) is a metal matrix composite that combine the properties of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 8, Issue 3, 2018 · pp. 13–18 Read article
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Recovery of Tungsten and Copper from Waste Tungsten Copper Borings
Abstract: During the last many years, the unused tungsten and copper alloy from the discarded electric and electronic equipment and industrial scraps are gathering attention as a section of waste. Because of tungsten's many diverse uses, numerous types of scrap were available for recycling by a wide variety of processes. In the present study, tungsten and copper was recovered by leaching process in ammonium hydroxide solution followed by electro winning process. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 1, 2017 · pp. 1–8 Read article
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Few Aspects in Deep Drawing Process
Abstract: The process in which a punch forces a flat sheet metal blank into a die cavity is known as deep drawing. Deep Drawing (DD) is one of the sheet metal forming processes widely used in automobile, aerospace, electronics and allied industries to produce the hollow parts. Presently, the conventional deep drawing (CDD) operation is carried out at room temperature in industries. Although, CDD provides a great potential application for the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 3, 2015 · pp. 31–35 Read article
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Studies on Erosion Wear Behavior of Aluminum-3 Magnesium-10 Silicon Carbide Composite
Abstract: Aluminum-based metal matrix composites (MMCs) offer potential for advanced structural applications when high specific strength and modulus as well as good elevated temperature resistance along with light weight are important. In the present work, aluminum alloy-silicon carbide composite (Al-3Mg-10SiC) is developed using the stir-casting technique and is subjected to study the wear behavior. Solid particle erosion on Al-3Mg-10SiC was conducted. Implementation of design of experiments (through Taguchi and statistical techniques) …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 3, 2013 · pp. 39–50 Read article
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Response of Sea Water Immersed GFRP Composite to Thermal Shock
Abstract: The work involves examining the effects of sea water immersion and temperature fluctuations, precisely that of up and down thermal shocks (lower to higher and vice-versa), on the glass fiber /epoxy laminated composites. These effects are studied in terms of sea water absorption, degradation in inter laminar shear strength (ILSS), alternations in the glass transition temperature (Tg) as compared to the untreated samples and finally listing up of the mode …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 34–41 Read article
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Dependence of Adhesion Strength of Plasma Spray on Coating Surface Properties
Abstract: It is well known that thermal plasma spray coatings have diversified utilizations, but not vividly in use, mainly because of high cost of spray grade powder, for development of thick coating > 50 µm on metal substrates. Present investigation aims at depositing plasma spray coating on metals using low-cost/waste materials. A mixture of fly-ash + 20 weight percent of Quartz + 20 weight percent of illmenite is used for coating …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 57–64 Read article
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Improvement of Mild Steel Surface Properties by Fly-ash + Quartz + Illmenite Composite Coating
Abstract: Plasma spray of fly-ash composite gives a stable improvement of surface properties for industrially used materials/equipments, which has become a major technological research area encompassing studies in a broad range from medical field, chemical field to ceramic field. In the present investigation, coatings are developed on mild steel substrates using fly-ash + quartz + illmenite composite (in a weight percentage ratio of 60:20:20) at various plasma torch input power levels …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 125–131 Read article
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Pore Distributions in Porous Anodic Aluminum Oxide (PAAO) Surfaces of Pure and Commercial Aluminum Substrates
Abstract: Porous anodic aluminum oxide (PAAO) surfaces were developed on pure aluminum (PA) and commercial aluminum (CA) substrates by anodization as a function of voltage in phosphoric acid bath at 278 K and were analyzed by scanning electron microscopy. The interpore distances were plotted in the form of frequency histograms to examine pore-ordering characteristics. Self-ordered porous structures have been obtained at 200 and 160 V for PA and CA substrates respectively …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 143–153 Read article
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Surface Characterization of Heat Treated Tool Steel after W-EDM
Abstract: In order to meet the increasing demands of performance and reliability of sophisticated components, quality of a machined surface plays an important role. In this research paper, it has been tried to investigate the effect of heat treatment on the surface quality of AISI D2 tool steel after Wire-Electro Discharge Machining (W-EDM). The test specimens were prepared by milling and then carrying out hardening and tempering in different ways and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 178–184 Read article
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Minor Scandium - Zirconium Impacts on Aluminum-6 Magnesium Cast Alloys
Abstract: Minor additions of scandium and zirconium alloy can not only improve strength and fracture toughness of the Al–6 Mg alloys, but also transform the age hardening characteristics for structural applications. If this impact were substantial, the enriched Al–6 Mg castings could be a potent material for futuristic transport sector, looking to higher specific strength and abundant availability in Indian/ global scenario. This work reports the effect of scandium and zirconium …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 61–71 Read article
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Thermal Stability of Compatibilised Natural Rubber/ Chitosan Blends
Abstract: The thermal degradation behavior of Natural Rubber /Chitosan (NR/CS) blends compatibilised with maleic anhydride (MA) was studied by thermogravimetric analysis (TGA). The TGA shows that the MA modified blends are more stable than the pure blends. MA acts as a reactive compatibiliser in NR/CS blends. MA grafted NR chain is highly reactive towards the functional group on the chitosan moiety, and when pressing at elevated temperature interaction develops between the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 123–133 Read article
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A Review on Metal Inert Gas Welding of Dissimilar Steels
Abstract: Joining of dissimilar metals has found its use extensively in power generation, electronic, nuclear reactors, petrochemical and chemical industries due to environmental concerns, energy saving, high performance, cost saving and so on. However efficient welding of dissimilar metals has posed a major challenge due to difference in thermal, mechanical and chemical properties of the materials to be joined under a common welding condition. This causes a steep gradient of the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 1, 2020 · pp. 1–15 Read article
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Advance green fiber reinforced thermosetting composites for reliable assistive device fabrication
Abstract: The biodegradable green fibers derived from natural plants are abundantly available and are currently considered as potential reinforcements. Present study aims at investigating the mechanical properties of green jute fiber reinforced thermoset composites as possible alternatives to the inorganic glass fiber reinforced prosthetic assistive device. Continuous green jute fiber are treated with sodium hydroxide and acetic acid, and then added to epoxy and polyester at varying fiber loadings to produce …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 2, 2020 · pp. 1–8 Read article
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The Role of Surface Treatments on Mechanical and Interfacial Shear Strength of Pineapple Leaf Fibers
Abstract: Natural fibers are seen as having potential application as reinforcing agents in polymer composite materials due to their main advantages, which include moderate strength and stiffness, low cost, and being an environmentally beneficial, degradable, and renewable material. They are susceptible to absorbing moisture because of their innate hydrophilicity, which can weaken or plasticize the adherence of the fibers to the surrounding matrix and impact the performance of composite materials employed …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 3, 2022 · pp. 18–28 Read article
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Optimization of Process Parameters for AISI 304 Using Micro-EDM Drilling Process: A Review
Abstract: Today, a variety of microparts are needed to fabricate high-tech items including MEMS applications and micro-electronic parts. The advancement of micromachining technology becomes ever more important in order to produce these micro parts. The creation of accurate holes and pins is one of themultiple processes in the micromachining process that is necessary for many small components. In order to create deeper, more straight holes, micro-hole drilling is utilized in a …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 26–37 Read article
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Enhancement of Electrical Conductivity of Laterite Derived Ferric Oxide to Facilitate As Anode Materials
Abstract: Laterite is a mineral abundant in ferric oxide and various impurities, including aluminum oxide and silicon dioxide. The extraction of ferric oxide from laterite is accomplished through a cost-effective leaching process employing HCl, NaOH, and Sodium dodecyl sulfate (SDS). Characterization using Xray diffraction (XRD) confirmed the synthesized particles to be α-Hematite nano particles, with an average particle size of 94.21 nm, predominantly falling within the range of 90 nm to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 1–11 Read article
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Effect of Aluminium Nitride Layer on the Electrical Performance of Microelectronic HEMTs
Abstract: AbstractIn this simulation work, a series of simulation outputs are reported related to the AlGaN/GaN single-heterojunction high electron mobility transistors (HEMTs). The effect of aluminium nitride nucleation layer on the drain characteristics is significant in single-heterojunction AlGaN/GaN HEMTs. The effects of drain voltage and gate voltage on the drain current are studied in the designed and simulated device structures. This simulation work may be a useful prediction to fabricate the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 3, 2017 · pp. 9–12 Read article
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Optimizing the Ratio of Number of Tubes in PCNTFET to NCNTFET for Digital Circuits
Abstract: AbstractCarbon nanotube Field Effect Transistors (CNTFET) offer various benefits as compared to other FETs. Many circuits can be constructed using PCNTFETs (P-type CNTFET) and NCNTFETs (N-type CNTFET) similar to the PMOS and NMOS of the CMOS technology. The CNTFETs employ carbon nanotubes in the channel of the device to provide a path for the ballistic conduction of electrons. The different ratios of number of tubes in channel of the PCNTFET …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 1, 2018 · pp. 34–40 Read article
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Ultra Low-Power 9-Transistor Flip-Flop Design
Abstract: AbstractThe use of very large scale integration technology in high performance computing, wireless communication, consumer electronics has been rising at a very fast rate. The challenge for VLSI technology is mainly in leakage power consumption. Flip-Flops (FFs) are the basic storage elements used extensively in digital system designs. It accounts for 20%–45% of the total system power and may considerably impact the chip area. In this paper, an ultra-low-power true …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 27–32 Read article
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Analysis of DIBL Effect in MOSFET Working
Abstract: AbstractOne of the most widely used electronic devices, particularly in digital integrated circuits, is the metal insulator semiconductor (MIS) transistor. Most of the existing transistors used in fabrication of integrated chips are with junctions. The device scaling is growing the channel length between junctions in devices are scaling gone down to 10 nm. Drain Induced Barrier Lowering (DIBL) effect is prominent as the feature size of MOS device keep diminishing. …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 33–40 Read article