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1603 articles for “structure”
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Mesomorphic Study of Achiral Hockey Stick- shaped Imine Linked Thiadiazole Compounds
Abstract: Achiral hockey stick-shaped molecules are a new extended set for calamitic rod-like liquid crystals,thiadiazole with Incorporation of a nitrogen linkage to the basic structures of a compound will acquaint another new property called photochromism along with liquid crystal because of the photo-isomerization of the -C=N linkage. Now, assuming such compounds also show the liquid crystalline property, then they will become multi-functional due to their photochromic property which might be taken …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 2, 2022 · pp. 41–50 Read article
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Elasticity's Double-Edged Sword: Navigating Instability in Materials
Abstract: The phenomena of elastic instability, which is frequently seen as a restriction, presents both difficulties and unrealized possibilities for materials research and engineering. This explores the complex interactions between elasticity and instability in different materials, exposing the dual nature of this phenomena as both a constraint and an opportunity. This article illustrates the delicate balancebetween upholding structural integrity and utilizing instability for cutting-edge applications by addressing the fundamental ideas underpinning …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 40–45 Read article
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Thermogravimetic Study Of Chrysodine Dye Type Bridge Containing Bis (8-quinolinol)s Ligands and Their Coordination Polymers
Abstract: Our thermogravimetric analysis state that the degradation in chrysodine dye type bridge containing bis (8-quinolinol)s metal coordination polymers was initiated at almost the same temperature near about 25-500 C(T0). The remarkable difference is observed in the mode of thermal degradation of the parent ligand and its coordination polymer. The unchelated bis(8-quinolinol) ligand and coordination polymers begin to decompose almost at the same temperature but in the polymer chelates this decomposition …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 32–40 Read article
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Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy
Abstract: The TIG welding of the IN617 heat and oxidation resistant has been precisely controlled through welding parameters, while γ'-Ni3(Al, Ti) phases predominantly controlled solution strengthening, and precipitation strengthening and carbides in γ matrix, as well as γ' precipitate’s shearing mechanism is prominent to enhance strength of superalloys. The high hardness has been preserved owing to strengthening major elements such as Cr, Co, and Mo etc., and the well coherency maintain …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 1–12 Read article
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Deposition and characterization of poly(o-anisidine)/TiO2Nanocomposite for gas sensing application
Abstract: The Poly(o-anisidine) (POA) and Titanium dioxide POA (POA/TiO2 ) composite thin film based for gas sensing application are synthesized. Pure POA and POA/TiO2 composites with 20wt% of TiO2 were synthesized by chemical oxidative polymerization of o-anisidine using ammonium persulfate in acidic medium at 0-50C. Thin films of POA and POA/TiO2 composites were deposited on glass plate by dip coating method to prepare the chemiresistor sensor. The structural and optical properties …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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Experimental Investigation of Visco-Elastic Behavior for Ecovio F Film C2203 Biopolymer Melts
Abstract: The visco-elastic behavior of biopolymers fluid are significantly interested in their internal structure, thus, it has been experimentally investigated for various industrial applications. This paper studies the characterization of (Ecovio F Film C2203) biopolymer because of their characteristics and importance in different fields of environment and health. Two form of rheometers instruments have been used at temperatures between (140 - 220) ˚C to describe the visco-elastic behavior of (Ecovio F …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 24–33 Read article
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Low temperature plasma treatment of polymeric membranes: a comparative review
Abstract: This paper presents a comparative study of plasma surface modification of various polymeric membranes. Low temperature plasma treatment using pulsed direct current discharge of different gases was employed to enhance hydrophilicity of membranes. Radio frequency discharge of various gases was used to improve surface properties of different polymeric membranes. The enhancement of hydrophilicity of the plasma modified membrane surface was evaluated by measuring the contact angle. The membranes were characterized …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 1, 2020 · pp. 1–19 Read article
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Preparation of PMMA Nanoparticles in Different Ways and Studying the Effect of Some Factors on Changing Its Properties
Abstract: Poly(methyl methacrylate) (PMMA) is usually made with the help of radical polymerization, coordination polymerization, and methyl methacrylate acid esterification. Due to its hardness, PMMA is widely used in the medical sciences, optical materials, electronics, and automotive industries. The present study aims to fabricate PMMA nanoparticles using different chemical methods such as sol-gel polymerization, co polymerization, etc. Various aspects of the synthesis process will be changed, such as temperature, reaction time, …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 2, 2022 · pp. 37–43 Read article
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Review on the Mechanics of Lightweight 3-D Graphene Assembly
Abstract: The purpose of this paper is to improve the results of Recent advances in three-dimensional (3D) graphene assembly, it has shown how we can make solid porous materials which is lighter than air. In its two-dimensional form, graphene is thought to be the strongest of all known materials. But researchers until now have had a tough time decoding that two-dimensional strength into beneficial three-dimensional materials. It is possible that these …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 9–13 Read article
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Roller Burnishing Process on Surface Hardness
Abstract: Roller burnishing is the procedure which produces a fine surface finish by the planetary rotation of hardened roils over a bored or turned metal surface. Roller burnishing involves plastic deformation of the surface of the work piece to improve surface structure. The most important parameter describing surface integrity is surface roughness. A detailed experimental program was used in this study where specimens were subjected to various levels of feeding speed …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 14–17 Read article
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To Analyze and Study CNC Lathe in Turning Machining Parameters
Abstract: Metal matrix composites (MMCs) consists an important class of design which have weight-efficient structural materials that are inspiring every field of engineering applications. There has been an increasing interest in composites containing low density and low-cost reinforcements. Among various discontinuously dispersed solids used, alumina is one of the most inexpensive and low-density reinforcement available in large quantities as solid waste by-product during combustion of coal in thermal power plants. Hence, …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 2, 2017 · pp. 24–29 Read article
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Exploring the Flow Physics during Unsteady Shock Interactions Using CFD and Numerical Analysis
Abstract: Numerical reproductions were done to analyze a Shock Interaction component in the twofold wedge design. The first wedge edge is steady in quite a while. Huge contrasts in stream structure were seen between the calculations with different edges on second wedge. The most exceptional violent variances happened toward the edges of the whole area. Symmetric and antisymmetric movements of the detachment district were recognized in the immediate stream utilizing restrictive …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 2, 2019 · pp. 40–55 Read article
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Characterization of the Magnetization Reversal of Bulk Electrical Steel and FeCoBSi Thin Film
Abstract: The aim of the research paper is to characterize the magnetization reversal of bulk electrical steel and FeCoBSi thin film samples by using MOKE microscope and further record the magnetic domain structure and magnetic hysteresis of samples along both easy and hard axes of magnetization. MOKE microscopy is widely used in research field to characterize magnetic properties of materials used in integrated photonics and spintronic devices. The area under the …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 1, 2021 · pp. 33–42 Read article
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Design And Optimization of Wheel Assembly of F1 Car
Abstract: The Wheel Assembly is the portion of a Formula Student Car or any car that connects the main structure of the body to the wheels using suspension arms. It's a part of the Final Drive as well. The steering system's wheel hub assembly is an important component. It keeps your wheel fixed to the car while also allowing it to turn freely. The wheel hub assembly is responsible for housing …
Published in International Journal of Mechanics and Design · Vol. 7, Issue 2, 2021 · pp. 45–47 Read article
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Remotely Operated Underwater Vehicle (ROV): State of the Art
Abstract: This study focuses on the analysis and development of Remotely Operated Underwater Vehicles (ROVs), encompassing their modeling, design, and control systems. It also addresses the inherent challenges related to their structural limitations, durability, and ease of operation. ROVs are robotic systems that can perform tasks in hazardous offshore environments and are equipped with various sensors to collect data. The objective of this paper is to examine the development of various …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 1, 2023 · pp. 24–28 Read article
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Modeling of 6 DOF Shake Table and Its Control
Abstract: This paper focuses on the modeling of 6 DOF shake table and implementation of controller and inverse kinematics. Shake tables are widely used to validate the structural integrity and reliability of a specimen during earthquake. Hence shake tables are used to simulate the acceleration spectra of earthquake. Modeling helps to analyze the system and its parameters for better understanding. The inverse kinematics are developed using degree of freedom (DOF) control …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 2, 2016 · pp. 56–60 Read article
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Manufacturing of Reinforced Composite Fly Ash Bricks – Product Analysing and Development Using Value Engineering Techniques
Abstract: The key driver of Indian economy is structured by the infrastructure development. This sector is principally responsible for thrusting India’s overall development and an intensive focus from government for initiating policies that would propose alternate methods and materials for which the end products ensuring high quality, non-degradable, time-bound creation of world class infrastructure in the country. Infrastructure sector includes power, bridges, dams, roads, and urban infrastructure development, which requires huge …
Published in International Journal of Manufacturing and Materials Processing · Vol. 4, Issue 1, 2018 · pp. 12–19 Read article
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Electrochemical Etching on Copper Surfaces to Achieve Superhydrophobicity
Abstract: In the present study, an attempt has been made to create superhydrophobicity on copper substrate by etching the surface at different parameters (current density and time). Etching time was varied from 30 to 240 minutes. Untreated copper surface exhibited contact angle of 91.4°. The best etched surface exhibited a maximum contact angle of 142.1° for a current density of 0.01A/cm2 and etching time of 60 minutes. The structure–property relationship of …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 1, 2019 · pp. 27–31 Read article
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A Study on Effect of Polarity on Mechanical Properties in Saw Process
Abstract: Welding is one of the most common fabrication techniques which is extensively used to obtain desirable quality welds for intended application in various structural components. The invariable importance of welding processes has been very well realized since long times ago, therefore till nowadays there is hardly any sector of human life which has not been benefited from applications of welding. Apart of quality of flux and welding parameters, welding processes …
Published in International Journal of Manufacturing and Materials Processing · Vol. 7, Issue 1, 2021 · pp. 1–6 Read article
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Study of Liquid Rubber Printing on a 3D Printer by Using a Peristaltic Pump
Abstract: The additive manufacturing (AM) process known as direct-ink writing (DIW), also known as direct-print (DP) or direct-write (DW), has great practicality in a variety of material types. In this process, it is essential for the ink formulation utilized for the DIW process to be a paste-type ink with a time-dependent shear-thinning property. Rubber has been utilized in a variety of applications however, the high pressure and temperature needed to treat …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 2, 2022 · pp. 34–44 Read article