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20 articles for “Vickers hardness”
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Ce-TZP/Al2O3 Nanocomposites for Biomedical Implants
Abstract: Ceramic materials are widely used for biomedical applications because of their remarkable biological and mechanical properties. Titanium and titanium alloys are widely used for fabrication of dental implants. The foremost disadvantage of titanium is its dark greyish colour, negative delicate tissue states of the gingiva may prompt to compromised aesthetics. Anyway these days Zirconia implants were brought into dental implantology as an option in contrast to titanium implants. Zirconia seems …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 1–6 Read article
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Effect of Heat Treatment on Mechanical Properties of Silver Nanoparticles Embedded in Phosphate Glasses
Abstract: AbstractSilver nanoparticles have been embedded in CaO-P2O5 and CaO-CaF2-P2O5 glasses using melt quenching technique and heat treatment process. The growth of silver nanoparticles in the glass matrix appeared to be time dependent. Mechanical properties such as Vickers hardness, fracture toughness and brittleness for the glass samples were evaluated using a Vickers Indentation technique. Variation in Vickers hardness, Fracture toughness, and brittleness was observed with an increase in the size of …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 11–17 Read article
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High-strength Indian Kaolin Development by Adding Vanadium Pentoxide (V2O5) by Sol-gel Method
Abstract: The development of high strength in Indian kaolinite has been studied in the presence of vanadium pentoxide. It is observed that the strength of Indian kaolinite is increased with addition of V2O5 by sol-gel techniques and characterized by Vickers hardness, X-ray diffraction and scanning electronmicroscopy studies. The kaolinite was compacted with different proportions of V2O5 additives and sintered at four different high temperatures. It was observed that V2O5 showed a …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 1, 2023 · pp. 28–32 Read article
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The Effect of Welding Parameter and Tool Geometry on Mechanical Properties of RZ5-10wt%TiC FSW Joint
Abstract: Friction Stir Welding (FSW) of metal matrix composite (MMC) provides the grain refinement and reinforcement redistribution of the composite used for wide application in aerospace and structural. This wide application needs development of best-suited joining process for MMC which is complicated to unite by the traditional welding process. The paper observed the consequence of the welding parameter and tools’ geometry on the mechanical properties of the friction stir butt welded …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Comparative Investigation on Mechanical Properties of AMCs Fabricated through Liquid and Solid-State Fabrication Process
Abstract: This current research work is primarily focused on comparative experimental study on effect of two distinct fabrication process routes i.e. liquid state and solid state process and their corresponding parameters on microstructure and micro-hardness properties of Aluminium matrix composites (AMCs). In this work, AMCs were fabricated by reinforcing Al2O3 powder materials of 5, 10 and 15 wt.% into pure Aluminum (Al) matrix phase through two distinct processes; liquid state (stir …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 202–215 Read article
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Study on High Strength Ti-Al-V Alloy at Cryogenic Temperature
Abstract: The α+β type high strength titanium alloy is usually used as a structural biomaterial for the manufacturing of orthopaedic prostheses as well as surgical and dental implants. The Ti-Al-V alloy had been deliberately solution treated at 860°C for 1 h (subsequently quenched in variable mediums) just below the β transus but within the α+β region to avoid grain coarsening for single β region as well as accomplish optimum balance properties …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 1, 2023 · pp. 1–14 Read article
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Characterization of Aluminum Metal-Matrix Composite with SiC and B4C Reinforcement with Different Weight Percentage
Abstract: Metal Matrix Composites (MMCs) have been prepared by compo casting method. The effect of matrix material on the wettability/compatibility of refinement with matrix is studied. Silicon and boron ceramic particles were used as reinforcement in aluminum matrices. The study of density, micro-hardness and the tensile strength has been done in order to characterize the same. It is found that Al-SiC MMC shows an increase in density with increasing weight percentage …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 1, 2015 · pp. 1–6 Read article
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Investigating the Mechanical Properties and Microstructure of AA 7074 Composites with Silicon Nitride Reinforcement
Abstract: This study investigates the mechanical and microstructural properties of AA 7074 aluminium alloy reinforced with 1%, 3%, and 5% by weight of silicon nitride (Si₃N₄), fabricated via the stir casting method, intended for structural aerospace applications. A thorough series of mechanical tests—comprising tensile, compression, hardness, impact, flexural, and wear tests—was performed to assess the influence of differing reinforcing content. The composite containing 5 wt% Si₃N₄ (SN5) demonstrated the most pronounced …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 268–281 Read article
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Multi Objective Optimization of Aluminium (AA6061-SiC-Flyash) Metal Matrix Composites using TOPSIS Method
Abstract: Metal Matrix Composites (MMCs) have significant interest due to their superior mechanical properties, including improved strength, hardness, and fracture resistance. This study investigates the optimization of the mechanical and fracture behaviour of casted AA6061-SiC-Fly Ash (FA) MMCs using the TOPSIS method. Silicon carbide(SiC) and fly ash (FA) reinforcements, with different weight percentages of 5%, 10%, and 15% were fabricated through sand casting method. Total 10 combinations of composites are prepared …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 459–469 Read article
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Mechanical Characterization of Kevlar 49 and Pina Fiber Hybrid Composites
Abstract: The pursuit of sustainable yet high-performance materials has accelerated research into hybrid composites that combine synthetic and natural fibers. This study investigates the fabrication and characterization of a Kevlar 49/Pina fiber hybrid composite using epoxy resin as the matrix. Kevlar 49, known for its exceptional tensile strength and energy absorption, was employed as the face sheet material, while Pina fiber, a biodegradable reinforcement extracted from pineapple leaves, was incorporated as …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 301–316 Read article
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Study on GP Zones Formation in the Sc Inoculated Ternary Al-Zn-Mg Alloys
Abstract: Mostly, ternary Al-Zn-Mg (7075) alloys are used in automotive and aerospace engineering due to readily age-hardening response and high specific strength-to-density ratio. Scandium (Sc) has great inoculation effect in Al-Zn-Mg alloys. The cast Al-Zn-Mg alloys system undergoes a complex transition sequence in order to gain maximum strength. This sequence consists of solutionizing then immediate quenching in water (T4), natural ageing and artificial ageing (T6); usually, in several temperature steps to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 2, 2016 · pp. 53–69 Read article
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A Brief Review on Interfaces of Copper Welded to Different Materials
Abstract: In engineering applications, three metals with high conductivity are primarily used such as copper (Cu), aluminium (Al), and silver (Ag). Each has its unique set of properties that affect specific engineering applications. Infact the choice of conductor depends on a mixture of cost, technical parameters, and environmental conditions. Among these, Copper is widely valued in engineering applications due to its antimicrobial property, excellent electrical (about 100% IACS) and thermal conductivity, …
Published in Trends in Mechanical Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 25–36 Read article
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Generative Design of Bioactive Orthopedic Composites for Fracture Repair Using an Integrated Conditional GAN–Transformer Framework: A Multi-Objective Approach
Abstract: Orthopedic composite implants for fracture repair must simultaneously satisfy conflicting mechanical and biological demands: high fracture toughness, sufficient compressive stiffness, and bioactive surface chemistry enabling osteoblast adhesion and mineralization. Existing design approaches rely on trial-and-error experimentation, yielding sub-optimal trade-offs between these objectives. This paper presents an integrated conditional Generative Adversarial Network–Transformer (cGAN-T) framework for fully computational, multi-objective generative design of hydroxyapatite (HA)-reinforced polymer composite microstructures targeting Orthopedic fracture repair. A …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 21–35 Read article
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Effect of Pin Profile on Microstructure and Mechanical Properties of Friction Stir Welded AZ31B Magnesium Alloy
Abstract: Friction Stir Welding (FSW) is a solid state welding technique which was developed primarily for joining soft metal alloys. The aim of the present work was to develop a defect free friction stir joint of magnesium AZ31B sheets and to investigate the microstructural and mechanical properties of the weld. Two types of tool pins namely cylindrical and truncated conical pin profiled tools have been used to analyze its effect on …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 3, 2016 · pp. 1–11 Read article
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Evaluation of Impact Strength and Hardness for Polymer Matrix Composites with Steel, Carbon and Glass Reinforcements for Automotive Applications
Abstract: Polymer matrix composites (PMCs) play a crucial role in a wide range of engineering submissions, owing to their impressive strength-to-weight ratio and customizable mechanical properties. This research focuses on examining how PMCs, enhanced with different materials, specifically carbon fibres, glass fibres, and steel fibres, behave when subjected to dynamic and static loading conditions. The study involves creating three distinct types of PMC specimens, each reinforced with one of the mentioned …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 738–748 Read article
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Experimental Investigation on Mechanical Characterization of Electrodeposited Shot Peened Copper Coated and Un-Coated Mild Steel
Abstract: The fatigue strength of fabricated copper coating on mild steel specimens under repeated loading and the overall number of cycles to failure has been investigated. The specimens of copper coating on mild steel substrate are fabricated by using an electro deposition shot peening method. The hardness behaviour of fabricated specimens studied and the experimental work has been carried out by using Vickers Micro Hardness under the load of 20N force. …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 279–288 Read article
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Fabrication and Characterization of Zinc-based Alloy for Bio-implants
Abstract: Zinc-based alloys are potential biodegradable implants and can replace Magnesium and Titaniumbased materials via engineering their biomechanical properties with Zinc. Implants, due to their intricate geometries are difficult to fabricate by conventional manufacturing techniques. Therefore, they are usually fabricated by Additive manufacturing and Powder metallurgy techniques. In the present work, Zinc, Magnesium, manganese and titanium are alloyed using powder metallurgy technique. Vickers micro-hardness, UTM, Zeiss microscopy and Corrosion testing using …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 1–13 Read article
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Polymer-Based Chemistry of Carbohydrate-Derived Fulvic Acid and Its Comparative Effect with Chelating Agents on Root Dentin Microhardness
Abstract: The interaction between the polymer science and the endodontic biomaterials field has increased recently while considering the search for chelating agents. CHD-FA (Carbohydrate-Derived Fulvic Acid), a naturally occurring low-molecular-weight polymeric organic acid, has potential chelating and antimicrobial and antioxidant activities. This investigation examines the polymeric chemistry of CHD-FA and compares the effect of CHD-FA with other chelating agents, ethylenediaminetetraacetic acid (EDTA), and citric acid, on root dentin microhardness. A total …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1051–1061 Read article
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Corrosion Measurement and Hardness Test of Magnesium-Tri Calcium Phosphate Composite Fabricated by Stir Casting
Abstract: Magnesium MMC is preferred in applications requiring high-quality materials and has replaced monolithic materials. Bio-implants traditionally used are titanium, steel, and nickel-titanium alloys, however, their removal necessitates surgery, which is costly and painful. While biodegradable 3D-printed implants are effective and eliminate the need for a second surgery, they remain expensive. After several studies to solve this issue, the development of biodegradable implants is considered. Magnesium possesses good biodegradable properties. An …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 436–447 Read article
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Enhancement of Mechanical Properties in Eutectic Al-Si Alloy Matrix Composites Reinforced with Kyanite and Graphite via Stir Casting
Abstract: The purpose of this work is to enhance the mechanical performance of a eutectic Al–Si alloy by incorporating hard ceramic (kyanite) and soft solid lubricant (graphite) reinforcements using a liquid-state stir casting route. Metal matrix composites were fabricated with kyanite contents of 2, 4, and 6 wt.% and a constant 2.5 wt.% graphite. Their microstructures and mechanical properties were systematically evaluated. The microstructure was examined using optical microscopy and energy …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 90–100 Read article