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1983 articles for “SGI 400/15 grade” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Weldability of Ferritic Stainless Steel
Abstract: The ferritic stainless steels are generally considered less weldable than austenitic stainless steels. In case of welding of first-generation ferritic stainless steels, rapid grain growth of ferrite takes place in both the fusion zone and heat-affected zone. These coarse grains have very low ductility and toughness. Excessive grain growth can be avoided by using lower welding heat input and or certain types of additives. They are lower in cost and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 185–194 Read article
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Structural, Mechanical, Electrical and Magnetic Properties of Mn–Zn Substituted Ca-hexaferrites
Abstract: In the present investigation, the samples with chemical composition Ca(CoTi)0.5(MnZn)x/2Fe11–xO19 with (x = 0 to 1.0) have been synthesized using perfect stoichiometric proportions of reacting oxides by standard ceramic technique. The pellets of 15 mm diameter were prepared and sintered at 1313 K in air atmosphere for 106 h and characterized by using XRD and SEM. XRD studies of the samples showed hexagonal magnetoplumbite (M) structure with unit cell dimensions …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 99–111 Read article
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The Effect of the Cyclic Steam Stimulation on the Thermal Cement Bond: Cased Hole Wire Logging Evaluation (Segmented versus Original) Tools
Abstract: When focusing on the oil thermal well life integrity, One of the current trends is to optimize the use of the innovative solutions in order to improve the quality of the cement bonding (i.e. cement to pipe bond and formation). This trend is in a trail application in Fula North East thermal wells in Sudanese oilfields. The objective of this paper is to discuss how the Cyclic Steam Stimulation (CSS) …
Published in Journal of Materials & Metallurgical Engineering · Vol. 9, Issue 3, 2019 · pp. 50–60 Read article
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Examination of Physicochemical Parameters of Crude Oil Remediation in Soil Environment using Agro-Based Material
Abstract: In this investigation the following physicochemical parameters were monitored which include cation exchange capacity, sodium ion, carbon, magnesium, nitrogen, calcium, available phosphorus, pH, electrical conductivity, and temperature. The experimental result obtained reveals that the physicochemical parameters analyzed the reaction than the inhibiting the reaction process by inhibiting the active site of microorganisms present in each bioreactor. The research showcases, the mass and the volume of the materials used for the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 2, 2023 · pp. 22–30 Read article
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Conceptual Investigation of Temperature Effect on Total Dissolved Solid and Electrical Conductivity on Treatment of Polluted Water Using Adsorbent
Abstract: The conceptual investigation of temperature effect on total dissolved solid and electrical conductivity of petroleum hydrocarbon contaminated water medium was monitored using adsorbent packed in packed bed column. The experiment was set up for treatment of the contaminated water medium with crude oil and the initial concentration of the total dissolved solid and electrical conductivity was determined as well as after treatment. The result obtained showcases high mitigation in the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 45–50 Read article
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Bandgap Analysis of Quasi Bandgap Semiconductor Using FDTD Technique
Abstract: In this work photonic bandgap analysis of boron nitride (BN) quasi bandgap semiconductor is investigated using finite difference time domain (FDTD) method. Here boron nitride semiconductor is cogitated as a-BN, h-BN, c-BN and w-BN semiconductor, where boron nitride is realized by the combination of two BN semiconductor layers separated by air. Simulation for photonic bandgap of the aforementioned semiconductor structure is carried out with respect to thickness of odd and …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 2, 2015 · pp. 1–4 Read article
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Radon Flux and Radium Content Determination in Cereals Products
Abstract: AbstractRadon (222Rn) in air is ubiquitous. Radon is a form of ionizing radiation and lung cancer is the only known effect on human exposure to radon in air. The radon gas can enter into the human body through respiring, drinking and eating and caused damage to respiratory and digestion system. Cereals products available in market were experimented by “Sealed Can Technique” using LR-II solid state nuclear track detectors which are …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 7–10 Read article
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Magnetic Moments of Mirror Hypernuclei with X-N-Λ Configuration for 6 Λ He ∼ 6 Λ Li and 14 Λ C ∼ 14 Λ N with Hybrid Quark Model
Abstract: A microscopic method to evaluate the effective magnetic moment of hyperon inside a six-quark bag based on quark exchange current model has been described. The Schmidt formula and its modification for magnetic moments of hypernuclei with X-N-Λ in the framework of hybrid quark model has also been discussed. The modified values depend on (i) the probability of the overlap of hyperon with the nucleons and (ii) the effective magnetic moments …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 15–23 Read article
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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 of the Security Risks Associated with the Construction and Operations of a Nuclear Power Plant in the Federal Republic of Nigeria
Abstract: AbstractElectricity is paramount for Nigeria’s economic growth. Both, commercialindustrial and domesticactivities mainly rely on electricity for daily needs and smooth operations. Electricity from nuclear energy will further boost the required national power capacity, projected to be above 10,000 MW. This study addresses some associated security problems that may bedevil a Nigerian Nuclear Power Plant Project with the necessary response arrangements if any security breach arises. Paramount among the problems observed …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 15–23 Read article
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Hazards of Power Production-A comparative study
Abstract: Nuclear energy has played a major role in reducing the world's use of oil for electricity generation over the past decades. Current estimates are that uranium resources will last some 400 to 500 years at the present rate of use. This resource base could, furthermore, last some 50 times longer if breeder reactors are introduced. Of the main energy sources, namely coal, hydro and nuclear, nuclear can be even considered …
Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 1-2, 2021 · pp. 1–20 Read article
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Preparation and Charactrization of lead free piezoelectric ceramic/PVA polymer composites
Abstract: Sodium potassium niobate (Na0.5K0.5 NbO3 ) ceramic was prepared through conventional solid state reaction using AR grade NaNO3, KNO3 and Nb2O5 in stochiometric ratio. Poly vinyl alcohol (PVA) polymer - sodium potassium niobate composite films were prepared by solution casting method by changing the blend ratio of PVA / Na0.5K0.5NbO3. The prepared samples in the form of films were characterized by powder X-ray diffraction. The XRD studies revealed the presence …
Published in Journal of Polymer & Composites · Vol. 6, Issue 1, 2018 · pp. 1–8 Read article
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Reinforcement of Natural Rubber with Sisal/Sugarcane Hybrid Nanofiller
Abstract: AbstractNatural fibres are attracting attention from researchers for the manufacture of polymer composites due to their eco-friendly nature and sustainability. The hybrid effects of Sisal/sugarcane Bagasse based nanofiller on the physico-mechanical properties of natural rubber matrix have been investigated. In the experiment, nanofiller were prepared from alkaline-peroxide treated sisal fibre and sugarcane bagasse through shear and friction homogenization. The nanofiller were hybridized using a single ordinate loading of 30 parts …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 35–42 Read article
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Tensile and Impact Properties of Jute/Glass and Jute/Carbon Fiber Reinforced Polypropylene
Abstract: AbstractComposites have created a niche in the world market today as they provide a stiff, strong and lightweight material. Two types of composites polypropylene/jute/glass fiber and polypropylene/jute/carbon fibers were prepared by varying the percentages of jute, glass and carbon fibers, respectively. A proportion of 35:5, 30:10, 25:15 and 20:20 were maintained between jute and other reinforcing fiber (glass or carbon) in polypropylene matrix. Tensile and impact test specimens were prepared …
Published in Journal of Polymer & Composites · Vol. 4, Issue 3, 2016 · pp. 35–39 Read article
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Study of Mechanical Behaviour of Sal Wood Flour based Polypropylene Composites
Abstract: AbstractIn this paper mechanical parameters of polypropylene (PP) and SEBS up to 10 wt% of copolymer are investigated. The PP/SEBS blend with 10 wt% of copolymer is further modified up to 10, 15, 30 and 50 wt% of sal wood. The tensile properties such as modulus, strength, and impact strength are studeid. The effect of salt spray on these properties is also the part of study. The results were found …
Published in Journal of Polymer & Composites · Vol. 3, Issue 2, 2015 · pp. 35–38 Read article
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Dielectric Responses of Hybrid Polymer Matrix Composites at 2–3 GHz Microwave Frequencies
Abstract: AbstractMeasurement of dielectric properties of polymeric materials in the 2–3 GHz frequency region is very important for strategic applications such as communication electronics, rapid prototyping, and radiation assisted heating. As per international standards for industrial, scientific and medical applications (ISM) 0.9, 2.45 and 5.8 GHz microwaves can be used both for heating and communication purposes, of this 2.45 GHz is most widely used frequency, hence it is important to characterize …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 1–11 Read article
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STUDIES ON MECHANICAL, OPTICAL AND BARRIER PROPERTIES OF LOW DENSITY POLY ETHYLENE WITH MICRO CLAY
Abstract: LDPE (Low density Poly ethylene) was melt blended with micro clay (0.5, 1, 3 & 5 wt%) by using a twin screw compounding extruder. Tubular blown film was taken using a tubular blown film extruder. Mechanical, optical and barrier properties were evaluated. The following trend was observed as the micro clay concentration was increased: The tensile strength was increased by 18% in machine direction (M/D) and decreased by 36% in …
Published in Journal of Polymer & Composites · Vol. 7, Issue 2, 2019 · pp. 23–31 Read article
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Development of Starch/Keratin/Chitosan Composite Material as a Substitute for Polystyrene in Food Packaging
Abstract: The increase in awareness of the environmental impact of non-biodegradable waste from food packaging, has seen manufacturers push towards initiating production of eco-friendly packaging materials. This research serves as a step forward in the direction of going green, through the development of a composite material from natural, biodegradable polymers, for use in production of packaging material for fast foods. The composite was prepared from starch and chitosan with chicken feather …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 1–7 Read article
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A Contemplating Review on Pure and Modified Polymeric Membranes for O2/N2 Separation
Abstract: The separation of O2/N2 by using membrane technology from air got the interest of the process industries due to its advantage over the conventional technologies like cryogenic distillation and pressure swing adsorption, in terms of simplicity, size, economic and power consumption. Membrane material selection for the separation of O2/N2 is challenging because most of the materials have low selectivityand others have low permeability. To meet both the selectivity of O2/N2 …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 9–32 Read article
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Studies on Mechanical, Thermal, Physical Properties and Characterisation of PLA-EVA Blend with Microclay and Product Development
Abstract: PLA-EVA (70:30 wt. %) with microclay (1, 3, 5 wt. %) was also melt blended using Glycerol (1%) was used as compatibilizer in a twin screw compounding extruder. Then test specimens were prepared by an injection molding machine. Mechanical, thermal and physical properties were evaluated. As microclay content was increased, the tensile strength, elongation at break and tensile modulus were slightly decreased but higher than that of PLA-EVA (30 wt. …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 24–33 Read article