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539 articles for “composition”
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Study the Corrosive Effect of Greenhouse Gases on Metallic and Non-metallic Materials
Abstract: Carbon dioxide is a major corrosive pollutant for building materials. It enters inside materials by diffusion or osmosis process and in presence of moisture it produces H2CO3 which decrease the pH value and accelerates chemical and electrochemical reaction with building materials. The carbonation reaction produces deterioration inside and outside of building materials. It produces corrosion reaction with metallic bar and disbanding with concrete. CO2 reacts with Ca (OH)2 and Mg(OH)2 …
Published in International Journal of Metallurgy and Alloys · Vol. 7, Issue 2, 2021 · pp. 17–28 Read article
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Drilling of Fibre Reinforced Plastics (FRPs) Materials: A Literature Survey
Abstract: The use of polymer composite materials has increased rapidly over the last decade and the numbers of papers for the machining of these materials has also increased. The aim of this paper is to present a literature survey on the resins, properties, the superiority of the hole produced in drilling of the fibre reinforced plastics (FRPs), different techniques used to detect the defects in composite structures that may be caused …
Published in International Journal of Composite and Constituent Materials · Vol. 1, Issue 1, 2015 · pp. 14–31 Read article
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Graphene Nanocomposites
Abstract: This paper provides an ample review of the present trends in graphene research with an emphasis on graphene-based nanocomposites and their applications. Various synthesis routes have recently been devised for mass production of graphene to address the needs of the composite industry. This paper describes the worldwide scenario of applications and uses in the field of graphene nanocomposites. It concludes with a discussion of the impact of graphene in composites …
Published in International Journal of Composite and Constituent Materials · Vol. 3, Issue 2, 2017 · pp. 11–15 Read article
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Study the Microwave Characteristics of Nanocomposites for Strengthening Building Materials
Abstract: The paper depicts the consequences of microwave portrayal of composite structure material comprising of layers of plastics, fiber glass and paste. The consistency of the block test of such a material has been assessed involving examining standard horn receiving wire in the recurrence range 7-12 GHz. Resounding monopole radio wire dove into the example has been utilized for assurance of comparable complex permittivity in the recurrence range 0.7-6 GHz. Non-uniform …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 1, 2022 · pp. 19–26 Read article
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Demonstration of Adsorbent Morphology of Different Particle Size for Petroleum Hydrocarbon Treatment in Packed Bed
Abstract: The choice of plantain stem, banana stem and palm oil fibre prepared for treatment of water medium polluted with petroleum hydrocarbon was monitored in a packed bed unit. The raw materials (plantain and banana stem as well as palm oil fibre) were room and sun dried and processed to obtained different particle size of 50, 150 µm and 200 µm. The raw material after processed was used as an adsorbent …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 13–19 Read article
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General and Organic Chemistry Laboratory Experiments for Science, Pre-medical, and Pharmacy Students – Chapter V: Organic Synthesis
Abstract: Organic synthesis can be classified into many types, including simple one-step synthesis, multi-step, one-pot, microwave, or green synthesis. Each type of synthesis takes place through a specific pathway depending on reactants involved, the reaction conditions, the catalyst, the protection group, and the duration of the reaction. In some cases, the required compound can be prepared by more than one procedure, and an expert chemist prefers the procedure by which the …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 8–16 Read article
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Synthesis and Characterization of Polymer-Based Organic–Inorganic Hybrid Materials viaSol–Gel Processing: A Review of Gelatin–Silica, Gelatin–Silica–Titania and HPMA-Based Systems
Abstract: Organic–inorganic hybrid materials have emerged as a versatile class of advanced materials that integrate the flexibility and functionality of organic polymers with the thermal, mechanical, and chemical stability of inorganic networks. Among the available fabrication routes, the sol–gel process has gained considerable attention because of its simplicity, low processing temperature, compositional flexibility, and ability to tailor material properties at the molecular level. The present review discusses the synthesis and characterization …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 2, 2026 Read article
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The Economical Managements Model of Corrosion Protection of Materials
Abstract: Corrosion affects many sectors, including industries, railways, transportation systems, marine environments, construction, housing components, engineering tools, metallic structures, and even biomedical implants. Due to corrosion, major financial losses occur in these fields. Corrosion takes place because of changes in the internal morphology of materials, or the attack of corrosive substances present in the environment. These unfavorable physical, chemical, and biochemical reactions lead to various forms of corrosion such as galvanic …
Published in International Journal of Metallurgy and Alloys · Vol. 12, Issue 2, 2026 · pp. 1–11 Read article
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Density-Based Separation and Polymer Type Verification of Mixed Post-ConsumerThermoplastic Streams: A Sequential Separation and Contamination Reduction Protocol for Secondary Polymer Supply Chains
Abstract: The separation of mixed post-consumer thermoplastic waste streams into polymer-type-specific fractions suitable for industrial reintegration is a fundamental chemical separation challenge in secondary polymer supply chains. Density-based separation, exploiting the characteristic density ranges of common thermoplastic polymers, remains the dominant first-stage separation technique in commercial recycling operations due to its low cost, scalability, and applicability across mixed waste stream compositions. This paper presents a sequential separation and contamination reduction protocol …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 2, 2026 Read article
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Chemical Synthesis, Structural Characterization and Solid-State Chemistry of NiₓCo₁₋ₓFe₂O₄ Ferrite Oxides
Abstract: Ferrite materials have attracted significant attention in recent decades due to their remarkable magnetic, electrical, and catalytic properties. Spinel ferrites, generally represented by the formula MFe₂O₄ (where M denotes a divalent metal ion such as Ni²⁺ or Co²⁺), have attracted significant attention due to their versatile applications in areas including magnetic storage, microwave absorption, sensing technologies, transformers, and catalysis. . In particular, nickel–cobalt mixed ferrites (NiₓCo₁₋ₓFe₂O₄) are of considerable interest …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 1–9 Read article
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Chemical Synthesis Strategies and Reaction Mechanisms in Self-Healing Polymeric Materials: A Comprehensive Review
Abstract: Self-healing polymeric materials are one of the most rapidly growing and technologically transformative classes of smart polymeric materials. Such materials offer the ability to autonomously repair damage and retain & restore functional performance. This capability is very important for polymers, which undergo mechanical failure, micro- cracking, delamination, photo-oxidation, or thermal degradation during service environments. The last decade has been remarkable for developments in self-healing polymers, ranging from extrinsic capsule-based approaches …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 26–34 Read article
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Intelligent Trajectories: Harnessing Artificial Intelligence for Next Generation Missile and Propellant Design
Abstract: The rapid evolution of artificial intelligence (AI) has unlocked transformative pathways for high-performance aerospace engineering, yet its integration into missile and propellant design remains nascent. This study investigates a hybrid AI-driven framework that unites physics-based modeling, data-centric learning, and multi-objective optimization to accelerate the conception, validation, and refinement of missile airframes and solid-propellant formulations. First, a physics-informed neural network (PINN) is trained on a curated database of historic missile geometries, …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 20–26 Read article
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A Survey on Hydrogen Storage System using Alloys
Abstract: The transition to a carbon-neutral energy landscape hinges on the ability to store hydrogen safely, densely, and reversibly. While high-pressure tanks and cryogenic vessels dominate today’s infrastructure, solid-state storage in metallic alloys offers a compelling alternative by marrying high gravimetric capacity with intrinsic safety. This work presents a systematic investigation of a family of reversible hydrogen-absorbing alloys—principally Mg-based intermetallics (Mg₂Ni, Mg-Fe-Mn) and Ti-V-based Laves phases (TiFe, Ti₁₋ₓMnₓV₂) – engineered through …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 13–19 Read article
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Reactivity of Niobium(V) ComplexTowards Hydroxamate Ligands
Abstract: A niobium(V) complex with the composition [NbCl(OC₆H₄CH(CH₃)₂-2)₄] was synthesized by reacting niobium pentachloride with four equivalents of 2-isopropylphenol in carbon tetrachloride as a solvent, yielding the product in good quantity. The complex was characterized using elemental analysis, molar conductance measurements, IR spectroscopy, ¹H and ¹³C NMR spectroscopy, and mass spectrometry. Spectroscopic results indicate that the complex exists in a dimeric form, with bridging occurring through isopropylphenoxo ligands. X-ray diffraction analysis …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 1–6 Read article
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Residential Design as a House–Society Interface: Translating Lived Requirements into Context-Responsive Design Principles (Mlalakuwa, Dar es Salaam)
Abstract: Residential architecture in rapidly urbanizing African cities often reflects standardized planning logics that assume fixed household structures and stable room functions. Yet, lived housing practices frequently reveal a different reality: dwellings evolve as sociocultural and socioeconomic requirements change over time. This article examines how user requirements are reflected through the transformation of residential plots and house layouts in Mlalakuwa, a high-demand settlement in Dar es Salaam. Drawing on field observation …
Published in International Journal of Housing and Human Settlement Planning · Vol. 12, Issue 1, 2026 · pp. 11–25 Read article
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Catalytic Pathways for the Conversion of Glycerol to Industrial Chemicals
Abstract: Abstract *Author for CorrespondenceIndra Neel PulidindiE-mail: [email protected] 1Student, Department of Ear, Nose and Throat, Saveetha Medical College (SMC) and Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamil Nadu, India2Assistant Professor, Department of Ear, Nose and Throat, Saveetha Medical College (SMC) and Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamil Nadu, India Received Date: February 07, 2026Accepted Date: February 16, 2026Published Date: March 21, 2026 Citation: Shivani …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 16–22 Read article
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A Study of Self-Healing Polymer Nanocomposites with Filler Effect
Abstract: Considering their versatility, polymers sometimes lack the barrier properties, mechanical strength, and thermal stability required for high-performance applications. The creation of polymer nanocomposites is an advanced solution to this restriction. To make these materials, nanoscale fillers like carbon nanotubes, graphene, silica, clay, and metal oxide nanoparticles are added to a polymer matrix in small amounts (typically 1–5% weight percentage). The nanoparticles’ incredibly high surface area-to-volume ratio, as well as their …
Published in International Journal of Applied Nanotechnology · Vol. 12, Issue 1, 2026 · pp. 26–35 Read article
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Safety, Toxicology, and Regulatory Science of CT Nano‐Contrast Agents in Radiology
Abstract: Nanoparticle-based contrast agents for X-ray computed tomography (CT) seek to overcome limitations of conventional iodinated small-molecule media but raise distinctive safety, toxicology, and regulatory science questions. Nano–bio-interactions specific to CT nanocontrast include reticuloendothelial system (RES) uptake, long-term hepatic and splenic retention, size-dependent renal versus hepatobiliary clearance, and potential immunogenicity and genotoxicity, all strongly influenced by particle composition, size, shape, surface charge, and coating chemistry. Robust preclinical evaluation requires harmonized in …
Published in International Journal of Applied Nanotechnology · Vol. 12, Issue 1, 2026 · pp. 36–47 Read article
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Literature Review on Overcoming Graphene Dispersion Challenges in Ultra High Performance Concrete: A Review of Self-Dispersion and Bio-Polymer Encapsulation Strategies
Abstract: Abstract—Ultra-High-Performance Concrete (UHPC) is a new generation of cement-based material because of its higher compressive and tensile strength, increased durability, and higher resistance to environmental degradation. However, UHPC undergoes microcracking when subjected to mechanical and thermal loading, which can jeopardize the long-term performance of the structure, decrease service life, and cause expensive maintenance. Traditional solutions to enhance UHPC durability are centered on material densification and fiber strengthening, while these treatments …
Published in International Journal of Concrete Technology · Vol. 12, Issue 1, 2026 · pp. 31–46 Read article
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Proximate Analysis and Functional Activities of African Pear Fruit (Dacryodes edulis) Grown in Makurdi, North Central Nigeria
Abstract: Dacryodes edulis (African Pear Fruit) is an indigenous edible fruit that is used for both food and medicine in North Central Nigeria. The nutritional composition and functional properties of Dacryodes edulis were studied using standard analytical techniques. The fruits were analyzed for Physico-chemical characteristics (pH, Titratable acidity and Total insoluble solids), proximate analysis (Crude protein, Ash content, dry matter content), Mineral analysis (Se, Mn) and antioxidant activity (TBARS). The analyzers …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 12–18 Read article