Rajasekar Rathanasamy

Rajasekar Rathanasamy
Kongu Engineering College | KEC · Department of Mechanical Engineering

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135
Publications
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Publications

Publications (135)
Chapter
Photovoltaic (PV) technology advances swiftly towards achieving Net-Zero emissions, driving exponential growth in global installations. This surge in solar energy production has led to a significant increase in installations, consequently elevating the number of modules reaching the end of their lifecycle. Despite the considerable benefits of solar...
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Ceramics were the most prominent materials, holding higher strength and electrical resistivity even under elevated temperatures. Ceramics, with their unique combination of mechanical, thermal, and electrical properties, find applications across numerous industries, ranging from traditional pottery to cutting-edge electronic devices. Ceramics are in...
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Purpose Wound patches are essential for wound healing, yet developing patches with enhanced mechanical and biological properties remains challenging. This study aimed to enhance the mechanical and biological properties of polyurethane (PU) by incorporating magnesium chloride (MgCl2) into the patch. Methodology The composite patch was fabricated us...
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The mining sector seeks innovation to enhance operational efficiency and prolong cutting tool life. This research investigates the impact of cryogenic treatment (CT) for 12, 24, and 36 h on tungsten carbide cutting bits used in mine machineries, focusing on its effects on cutting force, energy consumption, and tool wear during lab-scale linear rock...
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Polyvinyl alcohol (PVA), a synthetic polymer produced by polymerizing vinyl acetate and subjecting it to alkaline hydrolysis, exhibits properties such as film formation, emulsification, and adhesion. However, pure PVA’s biocompatibility and mechanical properties are limited. Its hydrophilicity also causes it to dissolve in water and blood, renderin...
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Natural fiber-based composites demonstrate excellent and comparable static and dynamic mechanical properties to conventional materials, such as steel and aluminum. They also extend their applications to aeronautical, sports equipment, and marine fields. This experimental study aims to find the effect of untreated and treated Abaca-reinforced epoxy...
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Obtaining maximum efficiency is one of the key elements of renewable energy sources in the present era. In this context, the research focuses on enhancing the power conversion efficiency of silicon solar cells through anti-reflective coating. Better light transmittance in silicon solar cells with anti-reflective thin film coatings results in higher...
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The increasing concerns about solid waste disposal have led to the development of innovative strategies for repurposing waste materials. This paper describes a simple solution casting process for recycling postconsumed footwear leather fiber (PCF) into a biocomposite film reinforced with graphene oxide (GO) and polyvinylpyrrolidone (PVP). PVP was u...
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In the current context, there is a great desire to develop renewable energy sources as a power source. In order to improve the power conversion efficiency (PCE) of silicon solar cells, several studies are being undertaken in this area. This investigation focuses on preparing ZnO-Al2O3 blend as an antireflective coating (ARC) for improving the effic...
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Cryogenic heat treatment is an advanced heat treatment process employed to modify the microstructure of a cutting bit to enhance its properties. This research study aims to investigate the effects of deep cryogenic treatment under different soaking times on the tribological performance of rock cutting bits. Cryogenic treatment was applied for 12-,...
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This research work focuses on augmenting the power conversion efficiency of the polycrystalline silicon solar cell with the aid of antireflection coating (ARC) of synthesized molybdenum disulphide (MoS2). The sol-gel technique and electrospraying method were preferred for synthesizing and depositing MoS2 as transparent thin films on the surface of...
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The Internet of Things (IoT) is a platform that permits communication between gadgets, elements, and other digitized resources that send and receive data automatically without involvement of personal interactions. The key feature of IoT is the massive amount of information generated by finished systems that must be interpreted in the cloud in a sho...
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Digital technologies in recent years have conquered the energy‐based industries for achieving better business opportunities through adoption of certain business strategies. The main advantage of Internet of things (IoT) in energy sector was to interconnect the automate and monitor regularly through software interface. So that, the defect or error,...
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Optically transparent zinc oxide and tantalum pentoxide thin surface films were deposited on front surface of polycrystalline silicon solar cell in the presence of room temperature for minimizing the incident light reflection. The deposition may be performed through vacuum or non-vacuum-based coating techniques. In this current research work, radio...
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This research work primarily focuses on enhancing the power conversion efficiency (PCE) of polycrystalline silicon solar cells by using a single-layer and a double-layered antireflection coating deposited through the electrospraying technique. The usage of titanium dioxide and silicon dioxide as antireflection coating materials has shown a signific...
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Solar cells are capable of converting light energy into electrical energy and can completely replace the utilization of fossil fuel energy resources. The current research work majorly concentrates on the development and coating of antireflection materials over the front contact of silicon solar cells. Ferrous disulphide was one of the wide band gap...
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The aim of this study is to fabricate biodegradable composite films from leather shavings (LS) and leather buffing (LB) blended with linear low density polyethylene (LLDPE) by twin‐screw extrusion process with blow molding mechanism. Various quantities of leather fiber is used to fabricate the composite films and as prepared films were characterize...
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Global energy consumption rate is getting higher and higher day by day due to industrialization, urbanization, increased population, etc. Hence, conventional non-renewable energy sources were been draining at faster rate due to excessive utilization. In the future, global energy needs might fully rely on the renewable energy sources. Solar energy i...
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Glucose drips which are also known as dextrose, are widely used in medical sector as an energy supplement. When the glucose drip bottle is emptied and if not detached from the body, blood will start to flow in a reverse direction through the tube and fills the glucose bottle making the condition of the patient worse. The conventional method needs t...
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Enhancing the performance of rock cutting bit is an important aspect in reducing mining cost. To enhance their cutting characteristics, rock cutting bits are exposed to different heat treatment techniques. In this research work, an attempt has been made to strengthen the wear resistance of rock cutting bits through sub-zero heat treatment process c...
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One of the key elements to enhance the performance of solar cells was antireflective surface coatings. It can be employed through different deposition techniques such as spin coating, dip coating, blade coating, etc., In this research work, the coating materials such as ZnO, Ta2O5 and ZnO–Ta2O5 blends were coated over silicon solar cells through el...
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Electrospun scaffolds based on polymer-matrix composites have gained wide attention recently. A novel engineered biocompatible scaffold is manufactured using polyurethane (PU) loaded with eucalyptus oil (EL) and Zinc nitrate (ZnNO3) using the electrospinning technique. Morphological observations revealed the reduced fibre diameter for the PU/EL and...
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Tool life is one of the essential parameters in sustainable manufacturing. Strengthening the life of cutting tool is a critical aspect in minimizing manufacturing costs. Enhancement of tool life during machining can be achieved through cutting fluids, different heat treatment techniques, coatings etc. Once cutting fluids reach the end of their usef...
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The impact of cutting parameters on the SR of machined work piece and tool flank wear during machining of AISI 420 martensitic stainless steel is studied in the research study. PVD-CAE coated TiAlN, AlTiN, and TiAlSiN cutting tool inserts were employed for machining. The potential influence of cutting parameters was determined using analysis of var...
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The current work mainly focused on analyzing the performance of plastic crushers designed and fabricated as an alternative to traditional impact crushers. The operating mechanism of the injection molding machine combined with the shredder consists of two phases: cutting the plastic using a double-edged blade, then loading the shredded plastic into...
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The main target of this research is to examine the performance characteristics of uncoated and coated tungsten carbide-cobalt rock cutting bits on their calculated output responses in cutting operation. This research aims to optimize the process variables like cutting speed, cutting depth and coating material while considering multiple output respo...
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The current research effort focused on enhancing the power conversion performance of silicon solar cells by minimizing the scattering of incident photons on the solar cell surface. This can be achieved through antireflective thin-film coatings. The main purpose of antireflective coatings is to minimize the reflection of incident light radiation. Si...
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The goal of this work is to fabricate a new composite based on polyurethane (PU), grapefruit (GP) oil, and cobalt nitrate [Co(NO3)2] using an electrospinning technique. Morphology results revealed the reduction in the fiber diameter of the composites compared to pristine PU control. The interaction of PU with GP and Co(NO3)2 was confirmed by hydrog...
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Graphene is a significant progress in modern research and one of the most hopeful materials used in succeeding electronic devices due to its unique characteristics. Since, graphene possess high surface area, thermal conductivity and Young’s modulus, it is mostly preferred in various engineering applications. Chemical doping of graphene using variou...
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A huge effort has been made in terms of synthesis, efficiency, mechanism and applications of carbon dots (CDs), as an emerging lighting material. CDs are used as non-harmful substitutes to replace conventional heavy metal quantum dots with high photostability, chemical stability, low cytotoxicity and high quantic yield. Graphene Quantum dots (GQDs)...
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Some of the challenges and specific outcomes of the doped carbon nanotubes have been reviewed in detail. In particular, the doping techniques and the implementations of doped CNTs depending on the specific applications such as sensors, electronic devices, nanorobots, composites, and so on have been reported. Various synthetic approaches have been u...
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Carbon nanomaterials are seen as potential alternative for high energy storage devices, because of their admirable mechanical properties, maximum thermal, and electrical conductivity. The carbon nanostructures such as fullerenes, graphene combined with numerous other materials have been identified in variety of applications. In the electrochemical...
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Doped carbon nanomaterials have been applied in batteries, supercapacitors and fuel cells. The different carbon-based nanomaterials doped with heteroatoms like nitrogen, sulfur, boron, phosphorous and their mixers are used to replace platinum and other costlier materials for the application of Oxygen Reduction Reactions (ORR). In this chapter, adhe...
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The combined effect of resin containing nanoclay along with natural fibers elevates the mechanical properties. In addition, the dispersion of nanoclay at the fiber-matrix interface would create strong physical interaction between the two. The significant enhancement in mechanical properties is achieved for the composite containing 30 wt.% abaca fib...
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Progression in agriculture productivity to satisfy the ever growing human food needs of all countries is of great concern. A theme study reported by United Nation on food security and agriculture in April 2009, which highlighted the significance of revitalizing natural-soil ecosystems for enhanced cultivation yield. These processes can be carried o...
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Nylon is used as a gear material thanks to its beneficial characteristics, such as self-lubrication, noiseless and fail-safe operation. Poor resistance to heat, dimensional stability, shock and impact loads are major drawbacks of nylon when used in engineering applications. The addition of a nanofiller to a nylon matrix can enhance its mechanical a...
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The current research focuses on sol-gel derived synthesis and RF sputter deposition of molybdenum disulphide (MoS2) over polycrystalline Si solar cell. Various coating layers were obtained under different sputter deposition at regular intervals. The influence of MoS2 sputter coating on optical, thermal chemical structural properties was examined th...
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With the aim of leaving a smaller ecological footprint and to develop fuels which will change the energy needs of the future in a sustainable manner, the present study aims at investigating the corrosion phenomenon of brass using biodiesel fuel from cast-off cooking oil (CCO) in various blending ratios with commercial diesel (5 %, 10 % and 20 %) on...
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Dye sensitized solar cells (DSSCs) are seen as a possible alternative to conventional inorganic solar cells due to their low cost, simple, and inexpensive manufacturing methods, and relatively good power conversion efficiency, higher cell efficiency on diffuse light conditions, and environmental friendliness. Following the initial reports on nanocr...
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Renewable energy will compensate the futuristic energy demand, as non‐renewable sources goes on decreasing day by day. The major renewable energy is utilized at present through photovoltaic cells. Silicon‐based solar cells are readily available in market due to their longer stability and life span. However, other generation solar cells are engineer...
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The widespread availability of solar cells has now become questionable due to huge expansion in the production and application of renewable energies. Accordingly, during the next centuries, the recycling of solar panels will become a major global concern. It is extremely important to sensitively examine the reuse and recycling processes of solar ph...
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Nowadays, it is necessary to switch over from traditional fossil fuel power generation to alternative source power generation due to environmental degradation. Solar cell is a device which is used to convert sunlight into electrical energy directly through photovoltaic process. This chapter comprises classification of photovoltaic cells, and manufa...
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Solar energy is naturally green, clean, and renewable. Instead of traditional nonrenewable energy, solar energy is the most promising choice. Photovoltaic or solar cell is a device that turns solar energy efficiently into usable electric energy [1]. Now, modern solar cells are most likely rigid silicon solar cells with greater stability and longer...
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White rice kernels are produced in the rice milling process with the help of rubber rollers. Husks are removed from paddy due to friction between the surface of rubber rollers and the paddy layer when the paddy passes between the two rubber rollers [1, 2, 3, 4, 5, 6]. Improved physico-mechanical properties of rubber compounds are needed for husk re...
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For the past few decades, thin‐film solar cells are considered as a potential alternative for space and earth photovoltaics. Due to minimal usage of material, thin‐film solar cells are favorable and also it provides a broad variety of design and production options. A number of substrates, such as fluid or solid, metal, or insulator, can be used for...
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Biofuel cell is an increasing interest among researchers due to its various applications including generating power in addition to disposal of waste. Fuel cell is a fast growing alternative power source. Fuel biocells are generating power from chemical reaction of suitable fuel with oxygen, as oxygen takes from the atmosphere. This chapter comprise...
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This study aims in understanding the rock cutting performance and optimizing the cutting parameters through DEAR-Taguchi optimization technique. The rock cutting experiments were performed by using uncoated, AlTiN-coated, and TiAlSiN-coated conical WC-Co bits. The micro-hardness, presence of coated elements, and morphological characterization were...
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Spinel zinc ferrite (ZnFe2O4) nanocrystallites are applied as an anti-reflection coating (ARC) for the enhanced light harvesting in polycrystalline silicon solar cells (PCSSC) and its effect were studied. Spinel zinc ferrite nanocrystallites were prepared using precursors of zinc and ferric chloride by co-precipitation method. The morphological, op...
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Flexible supercapacitor is an increasing interest among researchers due to its various applications especially energy storing. The super capacitors offer more advantages compared to batteries and other capacitors such as higher power densities and charging and discharging at short intervals of time. Larger surface area of electrode enhances storage...
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Purpose-The purpose of this study is to carry out an investigation of the role of the wood particle size on the mechanical properties of poly lactic acid (PLA)-reinforced neem fiber biocomposite. Design/methodology/approach-Composite test specimens were processed by reinforcing neem wood flour (NWF) in two different particle sizes, micro-sized NWF...
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A Bio composite comprising Prosopis Juliflora Fiber (PJF) and Poly Lactic Acid (PLA) was processed considering two particulate sized reinforcements, coarse PJF (avg. 15 μm) and fine PJF (10-50 nm). They were added individually at ratios of 10, 15, 20 and 25 wt% into PLA matrix. The composites were extruded and tested for mechanical properties. The...
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The current article reviews the construction of thin films comprising carbon-based nanomaterials for application in electrical and electronic fields. Carbon-based materials such as carbon nanotubes, graphene, and fullerene are known to possess excellent electrical and electronic properties, which makes them desirable materials for the fabrication o...
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Sensing devices own a vital role to support medical needs for early recognition and diagnosis of diseases. In the past half century, researchers have developed many biosensors for suitable applications, but only limited number of biosensors is commercially available. The biosensors are the biological recognition devices with high target specificity...
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The major impact in the clinical field is the harm posed by cancer. One most common type of cancer occurs in the skin. Though the conventionally existing modalities are successful in some cases, there is a need for new sensible methods to detect tumors at their initial stage. In accordance to these reasons and in addition to the incapability of the...
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The objective of this work is to develop graphene oxide (GO) incorporated butyl rubber (IIR) nanocomposites by three different methods: direct addition approach (DAAM), single step method (SSM) and two step method (TSM). Chlorobutyl rubber was used as a compatibilizer in SSM and TSM. Mechanical properties of developed nanocomposites was increased a...
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Transparent zinc sulfide (ZnS)-aluminium sulfide (Al2S3) composite thin-films are deposited on silicon solar cells through radio frequency (RF) sputtering method at room temperature to investigate the structural, optical, electrical, and thermal characteristics. X-ray diffraction analysis reveals the presence of the powder sample (ZnS-Al2S3) and it...
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Full-text available
A Bio composite comprising Prosopis Juliflora Fiber (PJF) and Poly Lactic Acid (PLA) was processed considering two particulate sized reinforcements, coarse PJF (avg. 15 µm) and fine PJF (10-50 nm). They were added individually at ratios of 10, 15, 20 and 25 wt% into PLA matrix. The composites were extruded and tested for mechanical properties. The...
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Biosensors are replacing conventional sensors because of their specific advantages. Biosensors are widely used in clinical and medical fields. This chapter presents the classification of different biosensors in detail, and also provides a brief description of electrochemical biosensors. The subclassification of electrochemical biosensors, namely, a...
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Because of the advancement of product design and engineering materials, the quality of traditional materials in various engineering applications is not adequate. Drilling is the mainly used machining operation for composite laminates because of the need for joining structures among different machining processes. During drilling phase, a variety of...
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Corrosion plays a predominant role in all the major industries that use corrosive materials mainly of chemical industries. Mainly, the corrosion may be controlled by adopting corrosion control methods. There are various types of corrosion control methods among those coating conductive polymers over the medium mainly generates corrosion resistance t...
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This chapter presents extensive research studies reported by worldwide scientists and specialists in the area of polymer coatings for industrial applications. The authors discuss new and emerging industrial applications, including micro systems, oil and gas industries, electronics, biomedical, pipeline, automotive industries, micro bit storage syst...
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Synthetic binders are special adhering materials manufactured from pure polymers, polymeric blends, resins, and oils. The chapter focuses on the basic characteristics, classification, production, benefits, properties, application of synthetic adhesives, and resins for bonding glass, metals, ceramics, wood, rubber, foil, paper, leather, cloth, plast...
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In the emerging scientific world, many challenges emerge in the industrial sectors to meet the demands possessed by upgraded technologies. Especially in the research on material and composite field, analyzing and characterizing the properties using existing techniques is till marching towards to fit with exact industrial prerequisites. Due to the c...