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Mechanical And Electrical Characterization Of Carbon Fiber
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Book Synopsis Mechanical and Electrical Characterization of Carbon Fiber by : Suma Ayyagari
Download or read book Mechanical and Electrical Characterization of Carbon Fiber written by Suma Ayyagari and published by . This book was released on 2017 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The quest for multifunctional carbon fiber reinforced composites (CFRPs) expedited the use of several nano reinforcements such as zinc oxide nanorods (ZnO) and carbon nanotubes (CNTs). Zinc oxide I semi-conductor with good piezoelectric and pyroelectric properties. These properties could be transmitted to CFRPs when a nanophase of ZnO is embedded within CFRPs. In lieu of ZnO nanorods, Bucky paper comprising mat of multiwall-carbon nanotubes (MWCNTs) could be sandwiched in-between laminae to construct a functionally graded composite with elevated electrical and thermal conductivities. In this study, a low temperature (90°) hydrothermal synthesis method was utilized to grow ZnO nanorods on the surface of carbon fiber fabrics. Different configurations of hybrid composites based on carbon fibers, in combination with ZnO nanorods and Bucky paper were fabricated. The composites were tested mechanically via tensile and dynamic mechanical analysis (DMA) tests to examine the effect of the different nanoadditives on the stiffness, strength, and damping performance of the hybrid composites. Surface electrical resistivities of the hybrid composites were probed to examine the contributions of the different nanoadditives. The results suggest that there are certain hybrid composite combinations that could lead to the development of highly multifunctional composites with better strength, stiffness, damping and electrical conductivity.
Book Synopsis Characterization of Carbon Nanotube Based Composites under Consideration of Defects by : Moones Rahmandoust
Download or read book Characterization of Carbon Nanotube Based Composites under Consideration of Defects written by Moones Rahmandoust and published by Springer. This book was released on 2015-10-14 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the characterization methods involved with carbon nanotubes and carbon nanotube-based composites, with a more detailed look at computational mechanics approaches, namely the finite element method. Special emphasis is placed on studies that consider the extent to which imperfections in the structure of the nanomaterials affect their mechanical properties. These defects may include random distribution of fibers in the composite structure, as well as atom vacancies, perturbation and doping in the structure of individual carbon nanotubes.
Book Synopsis Smart Cement by : Cumaraswamy Vipulanandan
Download or read book Smart Cement written by Cumaraswamy Vipulanandan and published by CRC Press. This book was released on 2021-07-29 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over three billion metric tons of cement are produced annually worldwide, making concrete the most extensively used construction material. Self-sensing, or smart, cement allows real-time monitoring of performance through the entire service life of a concrete structure, for the detection of changing stresses, contamination, excessive temperature, gas leaks and pre-seismic activity. This is achieved by adding a very small proportion of conductive or semi-conductive fibers, such as carbon fibers to the bulk cement, making it piezoresistive, and enabling changes in the concrete’s electrical resistivity in response to shear stress and strain to be monitored. This state-of-the-art reference work presents experimental results with a realistic theoretical framework, for cement manufactures, concrete technologists and contractors as well as researchers.
Book Synopsis Mechanical and Electrical Characterization of Hybrid Carbon Nanotube Sheet-graphene Nanocomposites for Sensing Applications by : Jiukun Li
Download or read book Mechanical and Electrical Characterization of Hybrid Carbon Nanotube Sheet-graphene Nanocomposites for Sensing Applications written by Jiukun Li and published by . This book was released on 2016 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unique mechanical and electrical properties of carbon nanotubes and graphitic structures have drawn extensive attention from researchers over the past two decades. The electro-mechanical behavior of these structures and their composites, in which electrical resistance changes when mechanical deformation is applied facilitates their use in sensing applications. In this work, carbon nanotube sheet- epoxy nanocomposites with the matrix modified with various contents of coarse and fine graphene nanoplatelets are fabricated. The addition of a secondary filler results in improvements of both electrical and mechanical properties. In addition, with the inclusion of the second filler, change in resistivity with mechanical deformation (manifested by gauge factor) is significantly enhanced. Nanocomposite with 5 wt. % coarse graphene platelets achieved is the most effective resistivity-strain behavior and largest gauge factor. Similar trend in variation of gauge factor variation was observed for fine graphene nanoplatelet - nanotube sheet nanocomposites. An analytical model for explaining these observations, incorporating strain and the effect of second filler, is developed. Sensors fabricated using these hybrid nanocomposites can be potentially used in damage sensing of aerospace carbon-fiber composites.
Book Synopsis An Examination of Mechanical and Electrical Properties of Carbon Containing Fiber Composites by : Robert W. Montgomery
Download or read book An Examination of Mechanical and Electrical Properties of Carbon Containing Fiber Composites written by Robert W. Montgomery and published by . This book was released on 2004 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Nanotubes by : Mohamed Berber
Download or read book Carbon Nanotubes written by Mohamed Berber and published by BoD – Books on Demand. This book was released on 2016-07-20 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows the recent advances of the applications of carbon nanotubes (CNTs), in particular, the polymer functionalized carbon nanotubes. It also includes a comprehensive description of carbon nanotubes' preparation, properties, and characterization. Therefore, we have attempted to provide detailed information about the polymer-carbon nanotube composites. With regard to the unique structure and properties of carbon nanotubes, a series of important findings have been reported. The unique properties of carbon nanotubes, including thermal, mechanical, and electrical properties, after polymer functionalization have been documented in detail. This book comprises 18 chapters. The chapters include different applications of polymer functionalization CNTs, e.g. photovoltaic, biomedical, drug delivery, gene delivery, stem cell therapy, thermal therapy, biological detection and imaging, electroanalytical, energy, supercapacitor, and gas sensor applications.
Book Synopsis Carbon-Containing Polymer Composites by : Mostafizur Rahaman
Download or read book Carbon-Containing Polymer Composites written by Mostafizur Rahaman and published by Springer. This book was released on 2018-10-05 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the methods synthesizing various carbon materials, like graphite, carbon blacks, carbon fibers, carbon nanotubes, and graphene. It also details different functionalization and modification processes used to improve the properties of these materials and composites. From a geometrical–structural point of view, it examines different properties of the composites, such as mechanical, electrical, dielectric, thermal, rheological, morphological, spectroscopic, electronic, optical, and toxic, and describes the effects of carbon types and their geometrical structure on the properties and applications of composites.
Book Synopsis Processing and Characterization of Carbon Nanoparticle/fiber-reinforced Polymer Composites by : Alejandro Jose Rodriguez
Download or read book Processing and Characterization of Carbon Nanoparticle/fiber-reinforced Polymer Composites written by Alejandro Jose Rodriguez and published by . This book was released on 2010 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) have an exceptional combination of properties that make them ideal materials for use as reinforcing particles in advanced composites. This investigation was aimed at obtaining fundamental understanding of the processing and properties of carbon nanoparticle/fiber-reinforced polymer composites -defined as multiscalereinforced polymer composites (MRPCs)- manufactured through a practical and scalable process. Such process consists of two stages. The first stage involves the synthesis of multiscalereinforcement fabrics (MRFs) by electrophoretic deposition of carboxylic acid- or aminefunctionalized CNTs and CNFs onto the surface of carbon fiber layers in aqueous medium; while the second stage proceeds with the stacking of the MRFs and infusion of the resulting preforms with an epoxy-amine resin system to obtain the MRPC. MRPCs manufactured following the described approach were tested for mechanical and electrical properties. Mechanical test results showed an increase in interlaminar shear strength (ILSS), shear stiffness, and compressive strength of all panels manufactured. Panels containing amine-functionalized carbon nanoparticles had the highest increase in properties: 13% in ILSS, 2.5-4 fold in shear stiffness, and up to 15% in compressive strength. On the other hand, it was found that through-plane electrical conductivity of MRPCs increased by 100% when using unsized MRFs. Investigation into the enhancement mechanism of mechanical and electrical properties was also performed. Discussion of these mechanisms are presented with emphasis placed on the fiber/matrix interface and the load transfer mechanisms between matrix, carbon nanoparticles, and carbon fiber.
Book Synopsis Characterization of Carbon Fiber Polymer Matrix Composites Subjected to Simultaneous Application of Electric Current Pulse and Low Velocity Impact by : Robert James Hart
Download or read book Characterization of Carbon Fiber Polymer Matrix Composites Subjected to Simultaneous Application of Electric Current Pulse and Low Velocity Impact written by Robert James Hart and published by . This book was released on 2011 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of composite materials in aerospace, electronics, and wind industries has become increasingly common, and these composite components are required to carry mechanical, electrical, and thermal loads simultaneously. A unique property of carbon fiber composites is that when an electric current is applied to the specimen, the mechanical strength of the specimen increases. Previous studies have shown that the higher the electric current, the greater the increase in impact strength. However, as current passes through the composite, heat is generated through Joule heating. This Joule heating can cause degradation of the composite and thus a loss in strength. In order to minimize the negative effects of heating, it is desired to apply a very high current for a very short duration of time. This thesis investigated the material responses of carbon fiber composite plates subjected to electrical current pulse loads of up to 1700 Amps. For 32 ply unidirectional IM7/977-3 specimens, the peak impact load and absorbed energy increased slightly with the addition of a current pulse at the time of an impact event. In 16 ply cross-ply IM7/977-2 specimens, the addition of the current pulse caused detrimental effects due to electrical arcing at the interface between the composite and electrodes. Further refinement of the experimental setup should minimize the risk of electrical arcing and should better elucidate the effects of a current pulse on the impact strength of the specimens.
Book Synopsis Short Fibre-Polymer Composites by : S K De
Download or read book Short Fibre-Polymer Composites written by S K De and published by Elsevier. This book was released on 1996-10-31 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a detailed insight into short fibres of different types (metallic and organic) in a polymer matrix, as well as reporting on the design considerations and applications of such composites. It relates unparalleled research into a diverse range of composites.
Book Synopsis Carbon Fibers by : Jean-Baptiste Donnet
Download or read book Carbon Fibers written by Jean-Baptiste Donnet and published by CRC Press. This book was released on 1998-03-19 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Third Edition offers the latest information on the structural, surface, mechanical, electronic, thermal, and magnetic properties of carbon fibers as well as their manufacture and industrial applications from many of the world's most distinguished specialists in the field. "
Book Synopsis Mechanical and Electrical Characterization of Glassy Carbon Nanofibers by : Benedict A. Samuel
Download or read book Mechanical and Electrical Characterization of Glassy Carbon Nanofibers written by Benedict A. Samuel and published by . This book was released on 2010 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Electrical and Mechanical Properties of Carbon-fiber Composites Using Interleaved Materials by : Akshaykumar A. Rana
Download or read book Evaluation of Electrical and Mechanical Properties of Carbon-fiber Composites Using Interleaved Materials written by Akshaykumar A. Rana and published by . This book was released on 2018 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Carbon-Fiber Reinforced Polymers (CFRPs) provides superior mechanical properties and low weight, enabling their extensive use in the aerospace industry. Susceptibility to internal damage due to out-of-plane loads and poor electrical properties are some of their major challenges that require to be addressed in order to increase the utilization of composites in further aerospace structures. Lightning strikes can lead to catastrophic damage, inflicting high repair and certification costs. Lightning Strike Protection (LSP) solutions such as integration of metallic meshes or foils into the composite structures, even though effective, impose extra costs and hinders the aircraft performance due to the increased weight of the aircraft.
Book Synopsis Electrical and Mechanical Properties of Conducive Carbon Black/Polyolefin Composites Mixed With Carbon Fiber by : A. Farshidfar
Download or read book Electrical and Mechanical Properties of Conducive Carbon Black/Polyolefin Composites Mixed With Carbon Fiber written by A. Farshidfar and published by . This book was released on 2006 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical conductivity of polymers can be increased by the addition of conductive fillers, including forms of carbon fibers and carbon black. The resulting composites can be used in applications where metals have typically been the materials of choice. The advantages of using these materials include lighter weight, resistance to corrosion, and the ability to be readily adapted to the needs of a specific application. One of the most significant applications for conductive polymer composites are conductive carbon-polymer composite electrodes. As many properties such as conductivity, mechanical integrity, low permeability, electrochemical activity, and stability in the electrolytes are required of materials to be used as electrodes, so "material selection" plays a crucial role in fabricating these materials. In this work it was found that high density polyethylene (HDPE)/ethylene-propylene-diene monomer(EPDM) blend ratio (70/30) has lower percolation threshold and volume resistivity than individually carbon black filled HDPE and EPDM due to "double percolation" effect. Carbon fibers were also added to the polymer-carbon black mixtures to enhance the conductivity and mechanical properties. The electrical conductivity of composites with different ratios of carbon black (CB) content to carbon fiber (CF) content was studied. The CB content is the main factor to determine the resistivity of the composites filled with CB and CF. Mechanical properties, including tensile strength, elongation at break, and impact strength of the conductive composites were evaluated. The results showed that incorporation of CB and CF in the composites will enhance tensile strength, but decrease elongation at break and impact strength of the composites. In mechanical properties, CF content has a greater effect than CB content. From the comparison of the resistivity and mechanical properties of the composites filled with CB and CF with that of the composites filled with CB only, it is concluded that using CF as a substitute for part of the CB in CB-filled composites can enhance electrical and mechanical properties.
Book Synopsis Mechanical and electrical properties of glass, carbon, and glass-carbon fiber reinforced epoxy by : Grant Rawston Headifen
Download or read book Mechanical and electrical properties of glass, carbon, and glass-carbon fiber reinforced epoxy written by Grant Rawston Headifen and published by . This book was released on 1988 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Mechanical Properties of Microscale Carbon Fiber and Carbon-nanotubes Grafted Fiber with the Aid of Dynamic Mechanical Analyzer by : Samuel Gbadeyan Adeoye
Download or read book Characterization of the Mechanical Properties of Microscale Carbon Fiber and Carbon-nanotubes Grafted Fiber with the Aid of Dynamic Mechanical Analyzer written by Samuel Gbadeyan Adeoye and published by . This book was released on 2012 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrospun Nanofibers by : Mehdi Afshari
Download or read book Electrospun Nanofibers written by Mehdi Afshari and published by Woodhead Publishing. This book was released on 2016-09-13 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrospun Nanofibers covers advances in the electrospinning process including characterization, testing and modeling of electrospun nanofibers, and electrospinning for particular fiber types and applications. Electrospun Nanofibers offers systematic and comprehensive coverage for academic researchers, industry professionals, and postgraduate students working in the field of fiber science. Electrospinning is the most commercially successful process for the production of nanofibers and rising demand is driving research and development in this field. Rapid progress is being made both in terms of the electrospinning process and in the production of nanofibers with superior chemical and physical properties. Electrospinning is becoming more efficient and more specialized in order to produce particular fiber types such as bicomponent and composite fibers, patterned and 3D nanofibers, carbon nanofibers and nanotubes, and nanofibers derived from chitosan. Provides systematic and comprehensive coverage of the manufacture, properties, and applications of nanofibers Covers recent developments in nanofibers materials including electrospinning of bicomponent, chitosan, carbon, and conductive fibers Brings together expertise from academia and industry to provide comprehensive, up-to-date information on nanofiber research and development Offers systematic and comprehensive coverage for academic researchers, industry professionals, and postgraduate students working in the field of fiber science
