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432 articles for “Metals”
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A Review on - Hybrid Nanomaterials for Future Applications in Construction
Abstract: Hybrid nanomaterials contain at any rate two special sections, regularly inorganic portions (metal particles, metal bundles or particles, salts, oxides, sulfides, non-metallic segments and their subordinates, etc.) and normal fragments (regular social occasions or molecules, ligands, biomolecules, drug substances, polymers, etc.) that are joined by unequivocal participations which achieve the synergistic improvement of their useful properties. A hierarchy of associations may be related with the advancement of mutt materials, from …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 1, 2021 · pp. 28–35 Read article
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Corrosion Resistance in Modern Metallurgical Alloys: Mechanisms & Mitigation Strategies
Abstract: Corrosion resistance in metallurgical alloys is a critical factor in their application across various industries, including aerospace, automotive, marine, and construction. This paper delves into the fundamental mechanisms of corrosion, such as galvanic, pitting, crevice, intergranular, and stress corrosion cracking, which significantly affect the longevity and reliability of alloys. It explores the intrinsic and extrinsic factors influencing corrosion behavior, including alloy composition, microstructure, environmental conditions, and mechanical stresses. Advancements in …
Published in International Journal of Metallurgy and Alloys · Vol. 9, Issue 2, 2023 · pp. 30–34 Read article
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Noble metal nanoparticles for electrochemical oxidation and sensor of Glucose
Abstract: The electrochemical oxidation of glucose without enzyme is one of the aims that many researchers have been trying to achieve. The non-enzymatic glucose oxidation attains closer to practical applications. The electrochemical oxidation of glucose molecules involves complex processes of adsorption, electron transfer, and subsequent chemical rearrangement, which are combined with the surface reactions on the metal surfaces. The information about the direct oxidation of glucose on solid-state surfaces as well …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 4, Issue 2, 2018 · pp. 1–5 Read article
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Assessment of Tensile and Hardness Property of AA5083/Nano-Al2O3 Metal Matrix Composites
Abstract: Al–Mg base composites reinforced with different mixtures of nano-Al2O3 particles have been fabricated by mechanical stir casting and their metallurgical and mechanical characterization has been investigated. In this investigation, the Al2O3 particulates were reinforced into the base matrix of aluminium fabricated with five levels of volume fraction such as Al/0 vol.% Al2O3, Al/2 vol.% Al2O3, Al/4 vol.% Al2O3, Al/6 vol.% Al2O3 and Al/8 vol.% Al2O3. After the Al-base-nano-composites were fabricated …
Published in International Journal of Composite Materials and Matrices · Vol. 1, Issue 1, 2015 · pp. 28–34 Read article
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Synthesis , Characterization and Biological Activity of Schiff base Derived from Sulphanilamide and Salicylaldehyde and Its Metal Complexes
Abstract: ABSTRACT : Schiff bases are important intermediates for the synthesis of various bioactive compounds. However, various studies have shown that Schiff bases derived from biologically active ingredients present in medicinal plants are more effective in biological and medicinal activity than in its pure form. In this paper K(I), Ni (II), Mg (II), Cd (II) and Pb(II) Complexes were synthesized from Schiff bases derived from sulphanilamide and Salicylaldehyde. The ligand and …
Published in International Journal of Composite Materials and Matrices · Vol. 5, Issue 1, 2019 · pp. 21–29 Read article
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Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 Read article
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Syenthesis characterization and biological activities of Schiff base metal complexes of Zr (II) Ba(II), Cu(II), Sr(II) and Th (II) derived from sulfa pyridine
Abstract: Abstract : The Schiff base ligand was prepared by sulfapyridine with salicylaldehyde Zr(II), Ba(II), Co(II), Sr(II) and Th (II) complexes of above ligand was synthesized as well. The synthesized complexes have been characterized by powder XRD and SEM. The anti microbial activity of synthesized ligand ant its complexes have been tested for their antibacterial activity against bacterial species, such as Bacillus subtilis, staphylococcus aureus, Pseudomonas, aeruginosa, Enterobacter aerogenes, E-coli and …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 30–37 Read article
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Determination of the Concentration of Some Selected Metals in Unripe Plantain (Musa paradisiaca)
Abstract: Plantain (Musa paradisiaca) is a food commonly consumed in Nigeria as boiled, roasted, or fried in its ripe and unripe form. Plantains harvested in Ekpoma, a predominately plantain-growing community, were studied for their mineral and sugar composition level of the unripe. Complexometric titration was used to determine the level of calcium and magnesium, flame photometer was used for sodium and potassium determination while zinc, iron, copper, chromium, manganese, and Co …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 1–4 Read article
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Doping and Its Impacts on the Properties of ZnO Nanocrystals: A Brief Review
Abstract: Research on zinc oxide (ZnO) has surged in recent years due to its extensive range of applications because its unique physical and chemical properties make it ideal for various uses, including acoustic devices, photocatalysis, pharmaceuticals, light-emitting diodes, solar cells and antibacterial agents. ZnO nanoparticles are particularly notable for their biocompatibility, low toxicity and stability, making them suitable for drug delivery and antiviral applications. The versatility of ZnO has led to …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 8–25 Read article
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A Review on Steel Metallurgy
Abstract: Steel is mostly manufactured in the manufacturing industries and it is nearly ninety percent due to its extremely higher strength and high toughness. This review paper discusses on the classification of steels, steel as a potential engineering material, mechanical properties and fabrication properties of steels. It also explains on its applications, low alloy steels groups and its properties. This review article also discusses on special steels like micro alloyed steels, …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 · pp. 1–6 Read article
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Zn2+ Biosorption Efficiency of a Nostoc sp. Isolated From a Coal Mine in Sohra, Meghalaya
Abstract: A Nostoc isolate obtained from a coal mine at Sohra in Meghalaya was evaluated for biosorption potential for Zn2+ which was one of the metal ions besides Cu2+, Cd2+, Fe3+, Mn2+ and Pb2+ found in water samples collected from the site. Zn2+ uptake potential of the cyanobacterium was analyzed calculating amount of ions removed by the isolate from Zn2+ supplemented media using atomic absorption spectroscopy (AAS). The organism recorded a …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 1, Issue 2, 2015 Read article
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Research Insight on Everest Contaminated by Toxic Metals
Abstract: The goal of this investigation of the Everest was to look at follow component fixations and altitudinal patterns in soil and snow. Mount Everest was chosen since its remote area and amazing height disengages it from limited contamination sources. Soil tests were gathered from Mount Everest by different specialists and the examples were broke down for Pb, Zn, Cd, Ni, Cr, Co, Cu, As, Mn, Hg, and V utilizing inductively …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 2, 2016 · pp. 21–23 Read article
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Synthesis and characterization of bi metallic Nanoparticles by 2-thiotic acid for selective growth of SWCNT
Abstract: Nanoparticles (NPs) are tiny materials having size ranges from 1 to 100 nm. They can be classified into different classes based on their properties, shapes or sizes. There are different types of NPs like men made NPs and Natural NPs but we are discussing about monometallic NPs and Bimetallic NPs. We deal with bimetallic NPs. NPs possess unique physical and chemical properties due to their high surface area and nanoscale …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 2, 2018 · pp. 48–58 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Green Synthesis of Metallic Nanoparticles and Their Use as Nano Minerals in Poultry Nutrition
Abstract: Nanoparticles have become a part and parcel of our daily life in our food, refrigerators, cosmetics etc. However, in poultry production, the use of nanoparticles is still in their benign stage. Nano minerals have various implications in poultry production ranging from growth promotion, antioxidant activity, antimicrobial activity and reduced environmental pollution. The risks associated with nanoparticle handling, consumption and disposal are yet to be researched and a regulatory body is …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 2, 2022 · pp. 32–36 Read article
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METALLURGY OF INVESTMENT CASTING TECHNOLOGY
Abstract: Investment casting is the most widely used process for several centuries, known as ‘lost wax casting’ or ‘precision casting’. This process is known to produce complex castings with good surface finish and dimensional accuracy. Poor quality of castings is always marked by inadequate surface finish, hardness and excessive shrinkage of the wax pattern. This review paper discusses on the history of investment casting technology, its processing techniques and parameters, casting …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 1, 2015 · pp. 1–14 Read article
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Metallurgical and Machinability Characteristics of Wrought and Selective Laser Melted Ti-6Al-4V
Abstract: This examination work shows a machinability ponder between created review titanium and specific laser softened (SLM) titanium Ti-6Al-4V in a face turning operation, machined at cutting paces in the vicinity of 60 and 180 m/min. Machinability attributes, for example, device wear, cutting powers, and machined surface quality were examined. Covering delamination, attachment, scraped spot, steady loss, and chipping wear instruments were overwhelming amid machining of SLM Ti-6Al-4V. Greatest flank wear …
Published in International Journal of Metallurgy and Alloys · Vol. 3, Issue 1, 2017 · pp. 9–12 Read article
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Evaluation of Corrosion kinetics of zirconium dioxide dispersion strengthened Aluminium metal matrix composites
Abstract: The corrosion kinetics of Aluminum 7068-Zirconium dioxide composites is a major aspect for assessing the capability of utilizing the materials for aviation segments. Aluminum 7068 matrix is a particular class of composite which is known for its high strength characteristics even in critical situations and is utilized as a part of aerospace, automobile and ordinance applications. However the investigations on impact of reinforcements, for instance zirconium dioxide on corrosion conduct …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 9–23 Read article
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Analysis of Physical Properties and Fabrication of Silicon Carbide, Graphite and Fly Ash Reinforced Metal Matrix Composites
Abstract: In the present study, a modest effort has been made to produce aluminium based silicon carbide particulate MMCs with an objective to develop a conventional low-cost method of producing MMCs and to acquire homogenous dispersion of ceramic material. To achieve these objectives step-mixing method of stir casting technique has been adopted and subsequent property analysis is performed. Al 6351 has been reinforced by silicon carbide, graphite and fly ash material, …
Published in International Journal of Manufacturing and Materials Processing · Vol. 3, Issue 1, 2017 · pp. 16–21 Read article
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Dry Season Impact on Water Quality of Nworie River, Owerri, Nigeria
Abstract: This study assessed the physicochemical properties and heavy metal contamination of Nworie River during the dry season. Fifteen composite water samples were collected from strategic points along the river. In-situ measurements of pH, temperature, and electrical conductivity were undertaken, while laboratory analyses determined heavy metal concentrations. Pollution Load Index and Contamination Factor were employed to evaluate the overall water quality and contamination levels. Results indicated moderate to high levels of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 40–49 Read article