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17 articles for “plastic defects”
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Design and Analysis of Common Injection Mould for Variable Length of Extended Prob Housing Component
Abstract: The present study focused on designing a common injection mould for variable length of component of nylon material for prob housing plastic part and die material as H13. It was operated on 210 t vertical injection moulding machine. The type of cooling system employed wasline cooling. The effect of cooling system location on the stresses produced in the mould was analyzed and component defects determined by mould flow simulation. Injection …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 1–9 Read article
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A Futuristics Pyrolysis Technique: Conversion of Waste Plastic Polybags Into Fuel
Abstract: Plastics are high molecular weight materials composed of repeating polymer units and can be classified based on factors like chemical composition, structure, stiffness, application types, and processing methods. A key environmental issue with plastics is their non-biodegradability, causing them to persist in the environment. Pre-consumer plastic waste includes manufacturing defects, rejected items, and excess materials produced during virgin plastic manufacturing. In India, around 15,342 tons of plastic waste are collected …
Published in International Journal of Advance in Molecular Engineering · Vol. 3, Issue 1, 2025 · pp. 1–13 Read article
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Flaws and Defects in Crystals
Abstract: Crystalline materials are defined by their long-range atomic order; however, no real crystal is completely free from imperfections. This article provides a comprehensive overview of the various types of crystal defects and imperfections that occur in solid materials and their significant influence on material properties. Point defects, including vacancies, interstitials, and substitutional atoms, are examined alongside line defects such as edge and screw dislocations, as well as planar defects encompassing …
Published in International Journal of Crystalline Materials · Vol. 2, Issue 2, 2025 · pp. 1–15 Read article
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Crystal Defects and Their Characterization in Modern Materials Science
Abstract: The physical and chemical properties of crystalline solids are fundamentally dictated by deviations from structural perfection, known as crystal defects. From the point-scale vacancies that drive diffusion to the planar boundaries that determine mechanical strength, defects serve as the primary "tuning knobs" in material design. This review provides a comprehensive examination of point, line, and planar defects, exploring their formation energetics and their role in plastic deformation via crystallographic slip. …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 · pp. 15–19 Read article
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Environment- friendly Pavement Construction Using Plastic Trash and Reclaimed Asphalt Pavement-An Overview
Abstract: Plastic pollution has emerged as a significant environmental concern, with detrimental effects on ecosystems and human health. As a waste product contaminating air, water, and land, plastic poses a grave threat to the environment, perpetuating a global crisis. Its non-biodegradable nature means that once produced, plastic persists indefinitely, accumulating in landfills, water bodies, and natural habitats. This widespread accumulation of plastic waste not only compromises the aesthetic value of landscapes …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 116–123 Read article
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Reduction of Submerged Mark Defects in Injection Molding Method
Abstract: Because of overwhelming interest in plastic items, plastic businesses are developing in a speediest rate. Plastic infusion forming starts with shape making and in assembling of complex shapes. Ideal setting up of infusion forming process factors assumes an imperative part in controlling the nature of the infusion shaped items. It is all the most critical to control property abandons like sink marks. Sink marks are fundamentally a "planned in" issue …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 2, 2018 · pp. 15–21 Read article
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Effect of Aging on the Performance of Polymer Composite: A Review
Abstract: The exceptional robustness, corrosion resistance, and lightweight design, polymer composites (PCs) are crucial to modern engineering escalating the utilization of polymer composite in structural applications including aerospace engineering, automobile engineering, etc. With a greater number of positive aspects, the polymer composite also deteriorate by different environment conditions with their exposing duration considered as aging of polymer composites. However, a variety of elements influencing the ageing process determine their long-term performance. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 752–768 Read article
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Hybridization Method for Injection Moulding Process, Optimization with Melting Temperature Parameters
Abstract: Due to the production of plastic products with complex shapes, the plastic injection moulding manufacturing method has recently received a lot of attention. In order to improve manufacturing performance, the cycle time for the injection moulding process has been reduced, the defect known as dimensional warpage that results from temperature differences inside the mould has been reduced, and the mechanical tensile strength of the material has been increased so that …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 337–345 Read article
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Optimization of Process Parameters for ABS, Nylon, Polypropylene Material in Injection Molding Using Taguchi Method
Abstract: The process of plastic injection molding (IMP) itself is a multifarious of time, temperature and pressure variables with a profusion of manufacturing defects that can occur without upright fusion of processing parameters and design components. Ascertaining the reform foremost process parameter settings commentative dominates productivity, quality, and costs of production in the plastic injection molding industry. Most plastic injection molding industries are using trial-and-error method/approximation method, based on experience of …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 1–9 Read article
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Effect of Tool Tilt on Formation of Tunnel in Friction Stir Welded 5083 Joints: An Experimental Study
Abstract: Friction stir welding (FSW) being a solid-state joining process is immune to the various defects faced in traditional fusion welding process. However, defects such as voids, joint line remnants and tunnel defects are common imperfections in FSW. In the present study, an attempt has been made to investigate the effect of tool tilt on the formation of tunnel defect, while keeping all other process parameters constant. Tool tilt is a …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 10–15 Read article
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Some Neurofasciocutaneous Flaps in the Coverage of Lower Leg Soft Tissue Defects
Abstract: Reconstruction of soft tissue defects of heel, ankle, and distal third of the leg is one of the most difficult assignments for plastic surgeons and it remains a challenge to seek safer options with less morbidity. We report on 28 pedicle perforator flaps without harvesting major vessels in the lower leg reconstruction. In the lower extremities, there were 16 sural neurofasciocutaneous flaps with an axis on the sural nerve, 8 …
Published in Research and Reviews : Journal of Surgery · Vol. 11, Issue 1, 2022 · pp. 7–12 Read article
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Mechanical Performance Analysis of PET based Fibre Reinforced Concrete: A Review
Abstract: AbstractConcrete is characterized by various kinds of defects which include low tensile strength, low ductility, heavy weight and low energy absorption among others. Use of plastic wastes in concrete will result in safe, eco-friendly disposal as well as enhancement of certain physical and mechanical properties of concrete. Due to its certain user friendly and desirable properties such as low density, high tensile and impact strength, fabrication capabilities, long life, light …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 41–46 Read article
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Bone Grafting in Dentistry: From Biological Principles to Contemporary Regenerative Applications
Abstract: Bone grafting plays a pivotal role in contemporary regenerative dentistry by enabling predictable reconstruction of alveolar bone defects resulting from periodontal disease, tooth extraction, trauma, or pathology. Adequate bone volume and quality are essential prerequisites for successful implant placement, periodontal regeneration, and long-term functional and esthetic outcomes. Bone graft materials act as biological or synthetic scaffolds that facilitate new bone formation through the primary mechanisms of osteogenesis, osteoinduction, osteoconduction, and …
Published in Research and Reviews: A Journal of Dentistry · Vol. 17, Issue 1, 2026 · pp. 6–13 Read article
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Effects of Plasticizers on Structures of Chemical Functional Groups, Morphologies, Water Vapor Permeability, and Thermal Properties of HPMC/BW Biopolymer Films
Abstract: Food preservation is one of the fields that many researchers are interested in, especially in the epidemic period like COVID-19 today. The better food or agricultural products are preserved for a long time, the more it ensures social stability for state management related to food security for people. This paper introduces one kind of biopolymer films with investigation on effect of plasticizers to its characteristics. In order to produce biopolymers, …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 10–20 Read article
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Study of Conventional Cutting Processes and Materials: A Review
Abstract: Today the world is rapidly developing. The purpose of the development is to easy the work, reduce the man power and get highly accuracy in the work. Industries now a day’s focusing on the automation for getting zero defective products as an output. This rapid development forces to create new machines for different purposes. This paper presents a brief review of some cutting machines and materials, which are used for …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 74–80 Read article
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Fracture Toughness in Advanced Materials: A Comparative Review of Testing Methods and Standards
Abstract: Fracture toughness is a key material property used to assess a material's ability to resist crack propagation, which is vital for ensuring the reliability and durability of structures and components in high-performance applications. It is particularly important in advanced materials such as composites, ceramics, and high-strength alloys, which are increasingly used in demanding industries such as aerospace, automotive, and civil engineering. Fracture toughness testing helps determine the material's behavior under …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 3, Issue 1, 2025 · pp. 17–21 Read article
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Corn Husk Fiber–Reinforced PLA Biocomposites: Mechanical, Thermal, and Biodegradation Performance
Abstract: The increasing environmental burden caused by conventional petroleum-based plastics has driven significant interest in the development of sustainable polymer composites reinforced with renewable natural fibers. In the present work, corn husk fiber (CHF), an agricultural waste by-product, was utilized as a reinforcing phase in a polylactic acid (PLA) matrix to fabricate eco-friendly biocomposites. Composite samples with varying fiber loadings (0–40 wt.%) were produced through twin-screw melt blending followed by compression …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 312–327 Read article