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102 articles for “gas metal”
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Compatibility Issues of Heat Pipes for Radioactive Exposures
Abstract: AbstractSelection of alloys are refractory materials those withstand high temperature, radioactive embrittlement effects for long periods. Effects of high temperature and neutron embrittlement are subjects considered in this article. Effects of coolants, reactive gases like oxygen are facts of importance to select materials for reactor construction system. Selections of radioactive protecting alloys like sleeves are of importance to produce systems within margins of weight. Compatibilities have been decisive among material, …
Published in Journal of Nuclear Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 24–32 Read article
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Evaluation on the Mechanical Strength of TIG Welded 6061Aluminium Alloy Joints
Abstract: Aluminum alloy Al-6061 is extensively used in aerospace, automotive, and marine industries due to its excellent mechanical properties, lightweight nature, and corrosion resistance. However, welding this alloy presents challenges such as porosity, hot cracking, and strength reduction in the heat-affected zone (HAZ). Tungsten Inert Gas (TIG) welding, known for its precision and quality, is commonly employed for joining Al-6061. This study investigates the tensile strength of TIG-welded butt joints of …
Published in Trends in Machine design · Vol. 13, Issue 1, 2026 · pp. 34–39 Read article
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Bio-Inspired Nanostructured Catalysts for CO2 Valorization: Green Chemistry Approaches in Polymer Nanocomposites for Sustainable Energy Solutions
Abstract: Artificial photosynthesis is a pioneering technology inspired by natural photosynthetic processes, offering a sustainable solution to address global energy crises and mitigate environmental impact. By harnessing solar energy, artificial photosynthesis aims to convert carbon dioxide (CO₂) and water into high-energy chemicals, such as methanol and hydrogen, while concurrently reducing harmful greenhouse gas emissions. This innovative process represents a transformative shift toward carbon-neutral or even carbon-negative energy production, helping reduce dependency …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 38–46 Read article
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Fatigue Study of Friction Stir Welded and TIG Welded AA 6061 Alloy Similar Joints
Abstract: In this study, Al-Mg-Si alloy plates in 4 mm thickness that are particularly used for aerospace and automotive industries were welded using Tungsten Inert Gas (TIG) welding and Friction Stir Welding (FSW) methods as similar joints with one side pass with parameters of varying tool rotation, weld speed and 2.3 degree tool tilt angle. Tensile tests results showed high yield stress values for FSW joints. Micro Vickers hardness test gave …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 12–21 Read article
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Development of High-Strength Geopolymer Concrete
Abstract: Pollution in cement production is a major environmental issue throughout the world. Geopolymer concrete is an alternate cement as well as environment-friendly material in construction field. It is also used as an alternative for ordinary Portland cement because of no emission of greenhouse gas CO2. The current limitation in geopolymer concrete has been applied in precast members. The geopolymer concrete is prepared by using fly ash, ground granulated blast furnace …
Published in Journal of Construction Engineering, Technology & Management · Vol. 4, Issue 1, 2014 · pp. 8–13 Read article
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Influence of Metal Contacts on Graphene Based Chemical Sensor Devices
Abstract: Graphene is a versatile material suitable for the device applications, both under normal and harsh environmental conditions. The graphene based devices require stable metallic contacts, both ohmic and rectifying, for reproducible operations. This is especially applicable to the few layer and multilayer graphene. This article deals with different ohmic and Schottky contacts on graphene. The methods of developing contacts by pre deposition and post deposition processing are highlighted. Furthermore, the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 3, 2016 · pp. 1–9 Read article
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Review on Chemical Separation of Crude Oil and Analysis of Its Components
Abstract: Crude oil is chemically composed of a complex mixture of hydrocarbons of different gaseous, liquid and solid states, the total of which may reach more than 17,000 organic compounds. At standard conditions of pressure and temperature the light hydrocarbons with carbon numbers 1 to 4 (methane, ethane, propane, butane) are present in gaseous form; Whereas pentane and the heavier hydrocarbons are found in liquid form, and in the heavy fractions …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 35–49 Read article
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Prevention of Corrosion in Electronic Articulated Forms
Abstract: This is study of typical corrosion failure in electronics arose from usual methods as galvanic corrosion, electrochemical migration, and bias induced corrosion. Common metals and alloys used in electronic devices are Al, Au, Cu, Ag, Sn, Pb and alloyed forms. Noble metal plated high performance electrical contacts have descriptive issues as high corrosion resistance thereby stable electrical behaviour. Films of metals and alloys constitutive to chip fabrication has detected to …
Published in Research and Reviews : Journal of Computational Biology · Vol. 10, Issue 1, 2021 Read article
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High-Performance Thin Film Coatings for Corrosion Resistance in Extreme Environments
Abstract: Corrosion is a serious concern in industries such as aerospace, marine, and oil & gas, where materials are exposed to harsh environments. High-performance thin-film coatings have emerged as a critical solution to mitigate this issue, providing a protective barrier against harsh chemical and physical conditions. This review article highlights recent advancements in thin-film coatings designed to enhance corrosion resistance in such environments. The focus is on various coating materials, including …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 11, Issue 2, 2024 · pp. 20–25 Read article
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Arsenic Induced Oxidative Stress and Its Possible Reversal by Chelation Therapy
Abstract: Arsenic (As) is a metalloid listed in group Va of the periodic chart. It exists in nature in the oxidation states +V (arsenate), +III (arsenite), 0 (arsenic) and −III (arsine). In the aqueous environment inorganic arsenic appears commonly in the oxidation states +V and +III as arsenous acid (As (III)), arsenic acid (As (V)), and their salts. Chronic and acute exposures of arsenic leads to cancer, cardiovascular disease (hypertension and …
Published in Research and Reviews: A Journal of Toxicology · Vol. 2, Issue 2, 2012 · pp. 16–37 Read article
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Catalyst-Driven Degradation and Failure Analysis of Intergranular Cracking in 316H Studded Pipes under Refinery Heat Recovery Conditions
Abstract: A failure analysis investigation was carried out on a high-temperature studded pipe used in a convection module for heat recovery in an oil and gas refinery application after leakage was detected during pre-commissioning hydrotesting. The investigated pipe was manufactured from AISI 316H austenitic stainless steel, and carbon steel studs had been joined to its outer surface by high-frequency resistance welding. Two leaks were reported in the pipe under investigation, and …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 1, 2026 Read article
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Optimization of Process Parameters for Cu90Ni10 Alloy Processed by Wire Arc Additive Manufacturing (WAAM) Using an L9 Orthogonal Array
Abstract: Abstract Wire Arc Additive Manufacturing (WAAM) has gained significant attention in recent years as a promising technique for producing complex metallic components. This study focuses on the processing of Cu90Ni10 alloy using WAAM and employs an L9 orthogonal array to optimize the mechanical properties of the resulting components. Cu90Ni10 alloy is known for its excellent corrosion resistance and electrical conductivity, making it a critical material in various industries, including aerospace …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 292–301 Read article
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Optimization of Stellite Defect in Manufacturing of Engine Valves: A Review
Abstract: Intake and exhaust valves are the important components of an engine valves which are used to control flow and replacement of fuel gases inside the cylinder. This work mainly deals with defect known as stellite defect in different sizes of engine valves; and methodology adopted to prevent valve from stellite defect. Valve base material is low alloy steel (AISI 4140) and upper surface of engine valve is generally hard faced …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 1–4 Read article
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Competency of Natural Fiber Based Eco-Friendly Friction Lining Composites Over the Conventional Friction Material
Abstract: The Braking system is important system of automobiles and is responsible for providing better performance and safety. A Millions of automobiles are frequently decelerated and stopped at heavy traffic zone. Overall performance of vehicle braking system depends on braking conditions and brake material. All friction based application releases wear products; either gaseous form or particulate matter form and braking system is prime source of non exhaust particulate matter emission. The …
Published in Journal of Polymer & Composites Read article
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Competency of Natural Fiber Based Eco-Friendly Friction Lining Composites Over the Conventional Friction Material
Abstract: The Braking system is important system of automobiles and is responsible for providing better performance and safety. A Millions of automobiles are frequently decelerated and stopped at heavy traffic zone. Overall performance of vehicle braking system depends on braking conditions and brake material. All friction based application releases wear products; either gaseous form or particulate matter form and braking system is prime source of non exhaust particulate matter emission. The …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 57–65 Read article
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Dispersion Analysis of Polypyrrole and ZnO Nanocomposite Thin Film using SPR Techniques
Abstract: The dispersion analysis of any material is crucial for studying its structure and composition. The interaction of the structure of the material with electromagnetic energy is also determined by studying its dielectric or optical properties. For studying dielectric properties, optical approaches are favored over electrical techniques, and Surface Plasmon Resonance (SPR) is the most suited of all techniques. It is used as a result to investigate the optical and dielectric …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 79–85 Read article
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Unusual Foreign Bodies in Gastrointestinal Tract: A Three-year Experience in a Tertiary Care Hospital
Abstract: Background: Majority of foreign body ingestion occurs in paediatric population with a peak incidence between ages of 6 months and 6 years. In adults, foreign body ingestion occurs more commonly in those with psychiatric disorders, developmental delay, alcohol intoxication, and in incarcerated individuals seeking gains via release to a medical facility. Materials and Methods: This prospective observational study was done in a tertiary care hospital of northern India over a …
Published in Research and Reviews : Journal of Surgery · Vol. 11, Issue 1, 2022 · pp. 25–29 Read article
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Understanding the Role of Remote Sensing Techniques in Monitoring Air Quality for Effective Adherence to Environmental Impact Assessment Practices in Nigeria
Abstract: The paper reviews the Nigerian Environmental Impact Assessment (EIA) Act, outlining the established air quality thresholds and emission caps for stationary sources. The standard applies to; common pollutants like sulphur dioxide, carbon monoxide, ozone, particulate matter and nitrogen oxides; toxic metals such as arsenic, nickel, cadmium and mercury; as well as volatile organic compounds, ammonia, antimony, zinc, formaldehyde and radon.It also describes the major classifications of remote sensing applications, including …
Published in International Journal of Satellite Remote Sensing · Vol. 4, Issue 2, 2026 Read article
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Seasonal Variations of Air Quality Measures In Warri and Effurun, Delta State, Nigeria.
Abstract: Air quality in Urban Cities like Warri and Effurun has been deteriorating over time. The distribution levels of air pollutants in the Warri and Effurun environments may be related to both natural and man-made factors. In addition to evaluating the quality of rainwater with regard to pH, heavy metals (Fe, Pb, Cd, As, Hg, CU, Zn), and some anions (Cl-, NO3-, SO42-, CO32-), this project study aims to investigate, using …
Published in International Journal of Pollution: Prevention & Control · Vol. 2, Issue 1, 2024 · pp. 23–48 Read article
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A comprehensive review on Sustainable Pathways to Synthesize 2, 5-Furandicarboxylic Acid (FDCA) from 5-Hydroxymethylfurfural (HMF) via Oxidative Processes
Abstract: The increasing global concern over the environmental impact of traditional plastics derived from petroleum and natural gas has spurred a search for more sustainable alternatives. Bioplastics, which are derived from renewable sources and may be biodegradable, have garnered significant interest as eco-friendly materials. Among the promising building blocks for bioplastics, 2,5-Furandicarboxylic Acid (FDCA) has emerged due to its potential to enhance polymer properties. One key precursor for bioplastics, 5-Hydroxymethylfurfural (5-HMF), …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 2, 2024 · pp. 01–13 Read article