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8 articles for “Si3N4”
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Microstructure and Mechanical Characterization of AA390 and Si3N4 Metal Matrix Composite Using Severe Plastic Deformation
Abstract: Metal matrix composites (MMCs) have significant attention in recent years due to their potential for improved mechanical properties compared to conventional monolithic materials. This study focuses on the microstructure and mechanical characterization of a MMC comprising AA390 aluminum alloy reinforced with Si3N4 particles. The severe plastic deformation (SPD) process, Equal Channel Angular Pressing (ECAP), was employed to fabricate the composite with enhanced mechanical properties. The ECAP method was chosen as …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 17–30 Read article
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Investigation of Residual Stress, and corrosion behavior of AA6082/Al 2 O 3 /C/ Si 3 N 4 Composite Material
Abstract: The main objective of the current study was to create AA6082/ Al2O3/C/Si3N4 Composite Material by the use of stir casting. The properties of the AA6082/ Al2O3/C/ Si3N4 Composite Material shown a significant improvement, with a micro-hardness rise of 13.5% and a residual stress decrease of 60%. As the testing parameters were increased, the residual stress of the AA6082/ Al2O3/C/ Si3N4 Composite Material rapidly decreased from -65MPa to -15MPa. An electromagnetic …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 1104–1109 Read article
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A Technical Review on Ceramic Cutting Tool Inserts
Abstract: This paper deals with detail information about ceramic cutting tool used in CNC/VMC machine. Ceramic cutting tool are more frequently used in high speed application, dry machining and hard part turning. Ceramic cutting tools are also available with combination of aluminum and silicon oxides to improve mechanical properties. In this paper advantages, disadvantages and properties of ceramic cutting tools are explained. Different methods of Tool wear measurements are also discussed …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 7–11 Read article
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Detailed Study On Physical Properties Of Silicon Nitride Films Deposited By Plasma Enhanced Chemical Vapour Deposition System
Abstract: Amorphous silicon nitride films have been deposited by radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) technique using silane (SiH4) and ammonia (NH3) as source gases. Investigations have been made in detail to understand the influence of process parameters such as RF power, substrate temperature, gas flow ratio, working pressure etc, on the optical, electrical and surface properties in order to obtain dielectric Si3N4 films for semiconductor device applications. Amorphous …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 1, 2016 · pp. 1–8 Read article
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Influence of Dielectric and Active layer Thickness on MgZnO Thin Film Transistor Electrical Characteristics
Abstract: From last decades, Thin Film Transistors Technology uses low-k dielectric material as an insulator. Insulator thickness plays an important role in device dimension. The insulating layer also known as the gate oxide separates the gate electrode from the channel region of the transistor. If the insulating layer is too thin, there is a greater chance that electrons can tunnel through the oxide layer, leading to leakage current. To mitigate this …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 17–26 Read article
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Fabrication and Assessment of Tribological Performance of Nickel-Graphene-MXene Hybrid Nano-composites
Abstract: As industries such as aerospace, automotive, defence, and electronics demand materials with superior wear resistance, high strength, and thermal stability, traditional metals are reaching their performance limits. Hybrid nanocomposites offer a pathway to meet these stringent requirements. In this study, novel Nickel-Graphene-MXene hybrid nanocomposites were fabricated using a powder metallurgy route, incorporating varying weight percentages (up to 2 wt.%) of MXene and 1 wt.% graphene nanosheets into a nickel matrix …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 780–798 Read article
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An Overview on Synthesis of Magnesium alloy based Metal Matrix Composites
Abstract: Magnesium alloy based composites are viewed as potential candidates for various applications in automobile, aerospace and defense sectors. Magnesium alloys majorly consisting of magnesium with fractional quantities of aluminum, zinc and manganese, are popularly used in light weight applications. This alloy can be reinforced with many of the ceramic oxides such as silicon nitride (Si3N4), Titanium carbide (TiC) etc in various forms to improve its mechanical and tribological properties. Currently …
Published in Journal of Polymer & Composites · Vol. 9, Issue 1, 2021 · pp. 1–6 Read article
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Performance Analysis of Ultra-Short Junctionless DGMOS Nanowire Transistors with High-k Gate Dielectric
Abstract: AbstractIn this report, we present a comparative analysis of ultrashort 3-D junctionless nanowire DGMOS transistors using different high-k gate dielectric by virtually fabricating the device in Visual TCAD. The ultrashort devices having channel length of 20 nm were simulated and performances like I-V characteristics, transconductance etc. were analysed. It was found that HfO2 has better steady state performances as gate dielectric owing to better control of the channel over the …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 1, 2019 · pp. 35–42 Read article