Search
162 articles for “Surface coatings”
-
Corrugated Tube Shell-and-Tube Heat Exchanger Using Epoxy-Based Polymer Composite Coatings for Lightweight and Efficient Thermal Systems
Abstract: Corrugated tube geometries are widely recognized for their ability to enhance heat transfer through boundary layer disruption and secondary flow generation. In this study, a combined experimental and computational investigation is carried out to evaluate the thermo-hydraulic performance of a shell-and-tube heat exchanger incorporating corrugated stainless steel tubes integrated with an epoxy-based polymer composite coating and housed within a mild steel shell. Unlike conventional metallic systems, the present work introduces …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 603–617 Read article
-
Critical Review on Photocatalytic Polymer Nanocomposites for Indoor Air Purification in Hotels
Abstract: The indoor air quality has become a key measure of health, comfort, and customer satisfaction of a hospitality setting. The challenges that continually affect hotels especially because of volatile organic compounds (VOCs), particulate matter, and microbial pollutants that are present in cleaning agents, furnishing, and human activity. In this regard, the photocatalytic polymer nanocomposites are one of the sustainable and efficient means of purifying indoor air. These materials combine photocatalysts …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 527–541 Read article
-
Chemical Processing of SU-8 Photoresist to Record the Surface-Driven Microfluidic Flow of Dyed Working Liquid in the Regime of Fluid Mechanics
Abstract: Chemical processing of negative photoresist SU-8 is performed to fabricate a set of three individualSU-8 based glass microfluidic devices inside the cleanroom laboratory. The major steps of SU-8processing are spin coating using a spin coater, soft baking, ultra-violet (UV) exposure, post exposurebaking, development by SU-8 developer, and hard baking. The indirect bonding for leakage-freesealing is used during hard baking to fabricate the microfluidic devices. Author has prepared thedyed water to …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 1, 2021 · pp. 53–57 Read article
-
Aspects of Diamond-Like Carbon based MEMS and Microfluidic Devices
Abstract: In general, diamond-like carbon (DLC) is the hydrogenated amorphous carbon (a-C:H) to be used in the fabrication of micro electromechanical systems (MEMS) and microfluidic devices. Mukhopadhyay as author has recently demonstrated the variation of surface wettability in polymer based microchannels by the use of DLC. Also, DLC can be used as an anti-stiction coating in different applications. In this review, different features of DLC are briefly highlighted. This educational short …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 31–33 Read article
-
Development of PU/Graphene Anticorrosion/antifriction coatings
Abstract: Corrosion inhibition and reduction of frictional wear is a necessary requirement in launch vehicles. Organic coating proves to be the cheapest and most advantageous owing to its high mechanical resistance and high adhesion, better chemical stability, low permeability for corrosive components etc. Among the organic coatings reported, Polyurethane is found to be the most suitable candidate it being relatively durable, softer and more elastic than other organic coatings. However, graphene …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 45–56 Read article
-
Experimental Analysis of Cutting Forces Under Different Machining Parameters and Carbide Inserts During Turning of Hardened AISI 4340 Steel
Abstract: Turning of hardened materials with an advanced coated carbide insert has numerous advantages over the grinding process, e.g., reduced process cost, high material removal rate, and less environmental concern due to the elimination of the cutting fluid. Process parameters in conventional machining operations like cutting speed, feed, and depth of cut play the most crucial role behind the generation of heat which also leads to microstructural changes, improved tool life, …
Published in Journal of Polymer & Composites Read article
-
A Review of the Properties of Electro Less Duplex Coatings with Different Outer Layers and Bath Preparations
Abstract: Electroless coatings are widely used now because of their outstanding tribological as well as physical qualities. The need for a coating or finished product with any of these attributes has increased over the past few years. As a consequence, there has been a rise in the amount of study and associated publishing production on the creation of various surface types and coverings with various components. This study gave rise to …
Published in International Journal of Electro-Mechanics and Material Behaviour · Vol. 1, Issue 1, 2023 · pp. 6–11 Read article
-
Valorization of Human and Cattle Dental Waste into Functional Composite Biomaterials: A Detailed Comparative Analysis
Abstract: This study investigates the conversion of human and cattle (goat and cow) teeth into bioactive hydroxyapatite-based composites and presents a detailed comparative evaluation of these biogenic materials with laboratory-synthesised (synthetic) hydroxyapatite (HAp). In this work, hydroxyapatite was extracted from human and bovine teeth through controlled calcination and milling, while synthetic HAp was prepared using a standard wet chemical precipitation route. All materials were subsequently sintered at 900 °C and fabricated …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 340–354 Read article
-
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
-
Inhibitors for 2000 series from aluminum
Abstract: Corosion inhibitor is traditional procedure to protect under any weather. Use of inhibitors have formed thin coating film as well film having hydrofobic to super hydrophobic properties. Angle of contact for weather chemical is simplest test appeared to depend on stabilization of surface under interest. Inihibitor considerations have appeared from hybrid toxic-nontoxic to purely green inhibitors to reproduce as environmentally friendly usage. Inhibitors applicable during anodization has technical importance from …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 2, 2019 · pp. 28–38 Read article
-
A review on Advanced Materials for Sustainable Innovation and Innovative Applications in Chemical Engineering
Abstract: High level materials assume a vital part in driving feasible mechanical headways across different enterprises. This comprehensive review paper aims to provide an in-depth analysis of the properties, synthesis methods, and potential applications of advanced materials, focusing particularly on nanomaterials, biomaterials, and smart materials. These materials exhibit unique characteristics that render them indispensable for a wide array of applications, spanning energy storage, environmental remediation, healthcare, and electronics. Nanomaterials, characterized by …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 1, 2024 · pp. 59–79 Read article
-
Enhancing Delamination Resistance in CFRP Composites through surface Functionalization of Woven carbon Fiber by CuO Nanostructures
Abstract: In order to produce a nanostructured interphase that improves the interfacial interaction with an epoxy resin matrix, copper oxide (CuO) nanostructures were hydrothermally formed onto woven carbon fibers (WCF). Hexagonal CuO nanorods were created using a two-step, seed-assisted solvothermal technique on plain woven carbon fiber. This study investigates the effects of surface modification of carbon fibers by the formation of CuO nanostructures using a hydrothermal technique on the mechanical properties …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 589–602 Read article
-
A Review on Shielded Metal ARC Welding
Abstract: Shielded metal arc welding (SMAW) is the world's most popular welding process. In this process consumable electrode is used for generating arc. The electrode is coated with a shielding flux. The flux melts with the electrode metallic core, forming gas and slag, shielding the arc and the weld pool. The flux cleans the metal surface and protects the molten metal from oxidation and stabilizes the arc. The molten electrode metal …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 1–5 Read article
-
Experimental Evaluation of MDM@Gd2O3:Eu3+ and Protein@MDM@Gd2O3:Eu3+ Functional Nanomaterial
Abstract: Lanthanide cation like Eu3+ (europium Xe 4f66s0) doped functional nanomaterials of lanthanide oxides especially of gadolinium oxide (Gd2O3) as nanorods capped with monodispersed macromolecule (MDM) like polyvinylpyrrolidone (PVP) coated with natural biopolymers like proteins as human serum albumin (HSA) have been the most demanding and applied nanomaterials in areas of the biosensor, optical distinguisher, electronic fluoresces, upconversion, and surface plasmonic resonance (SPR) nanomaterials and others. The Gd3+ and Eu3+lanthanide cations …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 214–223 Read article
-
Modeling of MHD Hybrid Nanofluid Flow with Radiation and Chemical Reaction Effects for Advanced Composite and Energy Applications
Abstract: Hybrid nanofluids reinforced with polymer-based matrices and nanoparticles have emerged as promising working fluids for advanced composite processing and thermal management systems. Their superior thermo-physical properties enable efficient cooling and energy transport, making them suitable for applications in polymer extrusion, composite curing, thermal insulation coatings, solar energy devices, electronic packaging, and nuclear system cooling. In this study, we investigate the heat and mass transfer behavior of magnetohydrodynamic (MHD) hybrid nanofluid …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 648–660 Read article
-
Polymer Chemistry in Shoulder Orthotics
Abstract: The design of effective shoulder orthotic devices has increasingly made use of polymeric materials because of their versatility, durability, and biocompatibility. This review illustrates polymer chemistry role in constructing an orthotic device for shoulder subluxation, which is a commonly occurring post stroke or injury condition. Proprietary design elements such as polypropylene are rigid yet moldable which help in anatomical formulating for joint stabilization. On the other hand, rubber elastomers, medicinal …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 21–28 Read article
-
Influence of Photoelectrons on Spacecraft Charging for Artificial Orbiting Spacecraft
Abstract: For the purpose of evaluating the temporal body potential and capacitance of an artificial orbiting spacecraft, this research analyzes the impact of photoelectrons on spacecraft charging. A metallic rectangular cuboid and two coplanar metallic rectangular plates compose the spacecraft model. The Runge-Kutta method is used to calculate the body potential, and the method of moments is used to calculate the capacitance. Depending on the spacecraft's inclination angle, solar energy from …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 14, Issue 1, 2025 · pp. 36–46 Read article
-
Analysis of C45 Steel Machining with Differentiated Tool Bits
Abstract: The tool material may be coated or uncoated, and cutting inserts are typically situated along the covered contact region. Work piece remains fixed while tool revolves for cutting and machining. Objective: A NABL-accredited metallurgical evaluation laboratory (machining) assessed two specimens. Machining profile and materials determine insert selection. Analytical results show material composition. The surface qualities of samples 1 and 2 were examined. As DOC, cutting speed and tool tip temperature …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 244–252 Read article
-
A Literature Review on Extrusion/Spheronisation-A Pelletization Technology
Abstract: Extrusion-spheronization is a leading pelletization technology, widely favored for its economic and commercial viability. It is a cost-effective method suitable for large-scale production, making it the most efficient approach for oral drug delivery. This process provides multiple benefits, such as improved flow characteristics, lower friability, a narrow particle size range, easier coating, consistent packing, reduced likelihood of dose dumping, and more predictable gastric emptying. Pellets usually measure between 0.5 and …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 16, Issue 1, 2025 · pp. 61–71 Read article
-
Research Paper on Thermal Comfort Analysis of Tractor Considering Multi-Parameters
Abstract: The main functions of a vehicle cabin are to provide a comfortable and relaxing environment for itsoperator and to protect them from vibrations, noise, and other adverse influences. Modernagricultural tractor cabins are complicated, high-efficiency systems, and the goal of theirdevelopment is to reduce their negative influence on the environment. Main factors for thermalcomfort are the dry-bulb temperature, relative humidity, surrounding surface temperature, and airmotion. A tractor cabin was created with …
Published in Journal of Mechatronics and Automation · Vol. 9, Issue 1, 2022 · pp. 1–6 Read article