Relevant bibliographies by topics / Particles Reinforcement Composite

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Particles Reinforcement Composite'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Particles Reinforcement Composite"

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Qiu, X., Xiao Jun Wang, Ming Yi Zheng, and Kun Wu. "Processing, Microstructure and Mechanical Properties of SiCp/AZ91 Mg Matrix Composites Fabricated by Squeeze Casting." Materials Science Forum 546-549 (May 2007): 499–502. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.499.

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The fabrication processing, mechanical properties and fracture characters of SiCp/AZ91 magnesium matrix composites fabricated by squeeze casting were investigated. The SiC particles with different diameters (5μm, 20μm and 50μm) were employed as the reinforcement in the composites, the volume fraction of them was 50% in all cases. Experimental results showed that when the size of SiC particle decreased, the tensile properties of the composite increased. The tensile properties of SiCp/AZ91 composite with small particles are controlled by the properties of matrix alloy and the strength of the interface between the matrix and reinforcements, but the composites reinforced by large particles are controlled by the fracture of the particles.
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Huang, J. Y., Z. H. Ling, and Guo Qing Wu. "Effects of Particle-Reinforcement on Elastic Modulus of Metal-Matrix Composites." Materials Science Forum 650 (May 2010): 285–89. http://dx.doi.org/10.4028/www.scientific.net/msf.650.285.

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To study the influence of particle’s characteristics on mechanical properties of the metal-matrix composites (MMCs), A two-dimensional randomly-distributed ellipsoidal particles finite element model was proposed and the tensile process of composites was simulated. The effects of adding proportion, geometrical parameters and attribute features of the particle-reinforcement on elastic modulus of composite were investigated and analyzed. The results show that there are several factors affect elastic modulus of the composite, including the adding proportion, elastic modulus, shape, size and tilt angle of the particles, etc. Among them, the elastic modulus and adding proportion of the reinforcement can primarily enhance the elastic modulus of the composite by 25% - 40% and 50% or more respectively, while the effects of particle shape, size and tilt angle on composite’s elastic modulus is relatively minor.
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Ipilakyaa, Tertsegha Daniel. "Evaluation of physical and dynamic mechanical properties of coconut husk ash (CHA) reinforced polyester composites." Journal of Mechanical and Energy Engineering 4, no. 4 (April 20, 2021): 315–24. http://dx.doi.org/10.30464/jmee.2020.4.4.315.

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The evaluation of physical and dynamic mechanical analysis (DMA) properties was carried out using developed CHA Reinforced Polymer Composite. Sieve analysis of pretreated CHA was done to obtain 75 µm, 150 µm and 300 µm particles sizes. These particles were used at varying compositions of 5%, 10%, 15%, 20% and 25% as reinforcements for polyester composites. The catalyst and accelerator used were Methyl Ethyl Ketone Peroxide and Cobalt Naphthenate respectively. The densities of the evaluated composites made with 150 μm particles were found to be less dense with values ranging from 0.9792 g/cm3 to 1.2561 g/cm3 than those made with 75μm and 300μm. The results also show that the percentage water absorbed by samples increased, ranging from 0 to over 2000 E’/MPa for all percentage reinforcements of CHA, with an increase in the duration of immersion of the samples in distilled water. However, 25% reinforcement had better results for all particle sizes. There were obvious variations of storage modulus, loss modulus and mechanical loss factor with percentage weight of reinforcement, temperature and frequency. The composite with 15 % reinforcement displayed better results and can be used as a material for interior components in aerospace and automobile industries.
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Vinayagamoorthy, R. "Effect of particle sizes on the mechanical behaviour of limestone-reinforced hybrid plastics." Polymers and Polymer Composites 28, no. 6 (November 4, 2019): 410–20. http://dx.doi.org/10.1177/0967391119883163.

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The present research has been made to investigate the characteristics of a new composite material made up of limestone as particle reinforcement. New composites are made by taking limestone particles in five different sizes and jute as woven reinforcement in polypropylene matrix. Mechanical characteristics of the composites that include strengths against tension, compression, flexural, impact and hardness are evaluated and a comparative investigation is made among the composites. The effect of particle size on the properties is analysed and found that the composite with medium particle size bears the highest strength in all aspects. In addition, microscopic image analysis is carried out to investigate the distribution of particles, bonding capacity and other morphologies. The results showed that limestone will be apt particle reinforcement and its presence enhances all the characteristics of the composite.
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Zhang, Yue Bo, Bernie Ya Ping Zong, Jian Feng Jin, and Xin Jian Cao. "Effect of Particulate Reinforcement Electroless Plating on Properties of SiC/Fe Composite." Applied Mechanics and Materials 556-562 (May 2014): 302–5. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.302.

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SiC particles were coated with copper and nickel respectively through electroless plating process to investigate the plating effect on mechanical properties of SiCp/Fe composites. It shows that tensile strength and final elongation of the composite improve significantly after the plating treatment of SiC particles. Compared with the composite reinforced by uncoated one, the maximum increase of tensile strength is 20.1% reinforced by nickel-coated SiC particles with the particle size of 21μm and volume fraction of 20%. The maximum tensile strength among the SiCp/Fe composites reaches 928.3MPa where the composite is reinforced by nickel-coated SiC particles with the particle size of 13μm and volume fraction of 10%. In contrast with that reinforced by uncoated SiC particles, the highest increment of final elongation is 19.6% reinforced by copper-coated SiC particle with the particle size of 13μm and volume fraction of 20%. Electroless plating on SiC particle surface may effectively prevent the direct contact in the interfaces between the SiC particles which can reduce the risk of micro-crack formation, so as to improve the properties of composite.
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Ghahremainian, M., and Behzad Niroumand. "Compocasting of an Al-Si-SiCp Composite Using Powder Injection Method." Solid State Phenomena 141-143 (July 2008): 175–80. http://dx.doi.org/10.4028/www.scientific.net/ssp.141-143.175.

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In this work Al-7wt%Si-10wt%SiCp composites were produced by injection of the reinforcement in the form of SiCp particles or a specially made particulate composite powder of aluminum and SiCp into the melt of proper composition at a temperature corresponding to 10% solid fraction. This paper presents the results of the investigation on the effects of reinforcement addition form, reinforcement addition temperature, stirring speed and magnesium addition on the incorporation and distribution of the reinforcement particles. The results showed that incorporation of SiCp particles was considerably improved by their injection in the form of milled Al/SiCp composite powder. Better particle wetting, improved particle dispersion and reduced particles size were achieved by injection of milled Al/SiCp composite powder instead of SiCp powder. Magnesium addition and high temperature injection were necessary for achieving good incorporation. Reinforcement incorporation was improved by increasing the stirring speed up to 500 rpm, after which the incorporation decreased slowly.
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Sekar, K., and P. Vasanthakumar. "Mechanical and Tribological Properties of Al6063 Hybrid Composites Reinforced with SiC/ZrO2 by Stir Casting and Thixoforming Process." Materials Science Forum 979 (March 2020): 47–51. http://dx.doi.org/10.4028/www.scientific.net/msf.979.47.

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Hybrid metal matrix composites new generation of engineering materials with better mechanical and tribological properties. Al6063 alloy has the matrix material and reinforcement SiC and ZrO2 micro particles are selected for the study. In this work, Al6063/ SiC/ZrO2 hybrid composite fabricated with different wt. % of reinforcements (0.5, 1, and 1.5 wt. % SiC and 1 wt. % ZrO2 constant for all composites) by using stir casting process. The thixoforming process applied to casted composite. The SiC and ZrO2 particle was distributed in the Al-matrix are visible in the SEM micrographs .The hardness value of the composite 34.75% increased due to the addition of constant 1 wt. % of ZrO2 and varying SiC reinforcement particles. The charpy impact strength of Al composite was increased by 23.52 % with the addition of the constant 1 % wt. ZrO2 and 1 wt. % SiC particles. Wear behavior of Al6063/SiC/ZrO2 hybrid composite was tested using pin-on-disc machine. The wear volume loss decreased for 1.5 % wt. SiC and 1 wt. % ZrO2 compared to other composite. The worn surface morphology has revealed that Al6063 base alloy with deep groove. The composite with 0.5%, 1% wt. SiC and constant 1 wt.% ZrO2 showed more debris, dilamation and cleavage particles formed on the pin surface. The composite with 1.5 % wt. SiC and constant 1 wt.% ZrO2 showed less wear loss and smooth surface formation.
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MUTHUSAMY, SARAVANAN, and GANESAN PANDI. "INVESTIGATION OF MECHANICAL AND CORROSION PROPERTIES OF AA2024–B4C–TiC HYBRID METAL MATRIX COMPOSITES." Surface Review and Letters 25, no. 05 (July 2018): 1850109. http://dx.doi.org/10.1142/s0218625x18501093.

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Metal matrix composites are widely applied in the automotive and aircraft structural components. This work investigates the influence of mechanical and corrosion properties hybrid aluminium 2024 metal matrix composites having 5%, 10%, 15% and 20% of TiC and B4C (equal amount) reinforcement compositions. The increase in volume fraction of B4C and TiC particle in matrix alloy increases the hardness, yield strength, ultimate strength and decreases the ductility of the composite. SEM images show microstructure of the composites with particles having a different volume percentage of reinforcement. The uniform distribution of B4C and TiC particles is most predominant in composite fabrication and the reinforcement particle additions have proved improved corrosion resistance in AA2024–B4C–TiC MMCs.
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Msebawi, Muntadher Sabah, Zulkiflle Leman, Shazarel Shamsudin, Suraya Mohd Tahir, Che Nor Aiza Jaafar, Azmah Hanim Mohamed Ariff, Nur Ismarrubie Zahari, and Mohammed H. Rady. "The Effects of CuO and SiO2 on Aluminum AA6061 Hybrid Nanocomposite as Reinforcements: A Concise Review." Coatings 11, no. 8 (August 15, 2021): 972. http://dx.doi.org/10.3390/coatings11080972.

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Hybrid composites are obtained by embedding multiple micro and nano reinforcements into the matrix materials. These hybrid composites are helpful to obtain the useful properties of matrix and reinforcement materials. Aluminum matrix is one the most common matrix materials due to its excellent thermal and electrical properties. This review covers various aspects of nanoparticle-reinforced Al hybrid composites. Solid-state recycling of Al only consumes around 5% of the energy utilized in the conventional extraction and recycling methods. This review revolves around the induction of silica and copper oxide nanoparticles into the solid-state recycled Al matrix material to form the hybrid composite. These nanoparticles enhance stiffness, toughness, and high temperature stability for Al hybrid composites. A detailed analysis was carried out for AA6061-grade Al matrix materials along with the silica and copper oxide nanoparticles. The present work focused on the effects of nano silica and nano copper oxide particle reinforcements on Al-based composite manufactured via hot extrusion process. The composite fabrication through solid-state recycling is discussed in detail. A detailed analysis for the effects of volume fraction and wt.% of CuO and SiO2 reinforcement particles was carried out by various characterization techniques. A detailed comparison in terms of mechanical performance of Al-based composites with the addition of nano silica and nano copper oxide particles is presented here to investigate the efficiency and performance of these particles.
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Sulardjaka, Sri Nugroho, Suyanto, and Deni Fajar Fitriana. "Investigation of Mechanical Properties of Al7Si/ SiC and Al7SiMg/SiC Composites Produced by Semi Solid Stir Casting Technique." MATEC Web of Conferences 159 (2018): 02036. http://dx.doi.org/10.1051/matecconf/201815902036.

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Mechanical characteristic of silicon carbide particle reinforced aluminum matrix composites produced by semi solid stir casting technique was investigated. Al7Si and Al7SiMg were used as metal matrix. High purity silicon carbida with average particle size mesh 400 was used as reinforcement particle. Aluminum matrix composites with variation of SiC: 5 %, 7.5 % and 10 % wt were manufactured by the semi solid stir casting technique. Stiring process was performed by 45 ° degree carbide impeller at rotation of 600 rpm and temperature of 570 °C for 15 minutes. Characteritation of composites speciment were: microscopic examination, density, hardness, tensile and impact test. Hardness and density were tested randomly at top, midlle and bottom of composites product. Based on distribution of density, distribution of hardness and SEM photomicrograph, it can be concluded that semisolid stir casting produces the uniform distribution of particles in the matrix alloy. The results also indicate that introducing SiC reinforcement in aluminum matrix increases the hardness of Al7Si composite and Al7SiMg composite. Calculated porosities increases with increasing wt % of SiC reinforcements in composite. The addition of 1 % Mg also increases the hardness of composites, reduces porosities of composite and enhances the mechanical properties of composites.
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Dissertations / Theses on the topic "Particles Reinforcement Composite"

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Changizi, Ahmad. "Production And Properties Of In-situ Aluminum Titanum Diboride Composites Formed By Slag-metal Reaction Method." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605914/index.pdf.

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In this study, production and properties of titanium diboride particle reinforced aluminum matrix composite were investigated. TiB2 particles form in-situ through the reaction of TiO2 and H3BO3 and Na3AlF6 in aluminum melt. The results showed that the in-situ TiB2 particles formed were spherical in shape and had an average diameter of 1mm .Moreover, the distribution of TiB2 particles in the matrix were uniform. The ultimate tensile strength, yield strength, flexural stress and hardness were found to while reduction in area and elongation were found to decrease with increase in reinforcement content in the matrix.
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Serdarli, Osman. "A Study On The Production And Properties Of In-situ Titanium Diboride Particulate Reinforced Aluminum A 356 Alloy Composite." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613380/index.pdf.

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TiB2 particle reinforced aluminum matrix composites have been the subject of several investigations. An M.Sc. thesis on production of TiB2 reinforced aluminum composites by reaction between liquid aluminum and B2O3 and TiO2 dissolved in cryolite has been completed in this Department in 2005. This study is a continuation of the mentioned M.Sc.study. Composition of the starting cryolite-B2O3-TiO2 system, temperature and time were used as experimental variables. The resulting composite was squeeze cast and its microstructure was examined. Mechanical properties of the produced composite were measured and how mechanical properties of the composite vary with TiB2 content of the composite was determined.
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Elmkharram, Hesham Moh A. "Mechanically Processed Alumina Reinforced Ultra-high Molecular Weight Polyethylene (UHMWPE) Matrix Composites." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/31522.

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Alumina particles filled Ultra-high Molecular Weight Polyethylene (UHMWPE), with Al2O3 contents 0, 1, and 2.5 wt% were milled for up to 10 hours by the mechanical alloying (MA) process performed at room temperature to produce composite powders. Compression molding was utilized to produce sheets out of the milled powders. A partial phase transformation from orthorhombic and amorphous phases to monoclinic phase was observed to occur for both the un-reinforced and reinforced UHMWPE in the solid state, which disappeared after using compression molding to produce composite sheets. The volume fraction of the monoclinic phase increased with milling time, mostly at the expense of the amorphous phase. The melting temperature decreased as a function of milling time as a result of modifications in the UHMWPE molecular structure caused by the milling. At the same time, for a given alumina composition the activation energy of melting increased with milling time. Generally, the crystallinity of the molded sheets increased with milling time, and this caused the yield strength and elastic modulus to increase with milling time for a given alumina composition. However, the tensile strength and ductility remained about the same.
Master of Science
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Kennedy, Andrew Richard. "The redistribution of reinforcements during the solidification processing of metal matrix composites." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307106.

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Zeagler, Andrew. "Structure and Processing Relations in Ni-W Amorphous Particle Strengthened Ni Matrix Composites." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36084.

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Reinforcing metals with compositionally similar amorphous particles has been found to create composites with good interfacial bonding. It is conceivable that significant additional strengthening in amorphous reinforced composites can be realized by creating high-aspect ratio reinforcements; attritor milling holds promise in this regard. In this work, mechanical alloying was used to produce equimolar Ni-W powder that became a composite of amorphous Ni-W with undissolved W crystallites. A mixture of nickel powder and ten volume percent amorphous Ni-W powder was blended by attritor milling for either one or three hours, compacted by combustion-driven compaction and sintered for up to fifty hours at 600ºC. Prolonged times at elevated temperatures led to crystallization of the amorphous reinforcement particles and dissolution of tungsten into the matrix. Vickers macrohardness tests on the sintered composites yielded lower-than-expected values. Microscopy after hardness testing revealed sliding of particles at their boundaries, indicating poor bonding between them. It is believed that the sintering process was compromised by contamination from organic vapor present in the tube furnace used. While attritor milling effected smaller reinforcement particles, the small increase in aspect ratio would likely have been insufficient to cause significant strengthening by shear load transfer.
Master of Science
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Samadi, Reza. "Particle-Based Geometric and Mechanical Modelling of Woven Technical Textiles and Reinforcements for Composites." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26241.

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Technical textiles are increasingly being engineered and used in challenging applications, in areas such as safety, biomedical devices, architecture and others, where they must meet stringent demands including excellent and predictable load bearing capabilities. They also form the bases for one of the most widespread group of composite materials, fibre reinforced polymer-matrix composites (PMCs), which comprise materials made of stiff and strong fibres generally available in textile form and selected for their structural potential, combined with a polymer matrix that gives parts their shape. Manufacturing processes for PMCs and technical textiles, as well as parts and advanced textile structures must be engineered, ideally through simulation, and therefore diverse properties of the textiles, textile reinforcements and PMC materials must be available for predictive simulation. Knowing the detailed geometry of technical textiles is essential to predicting accurately the processing and performance properties of textiles and PMC parts. In turn, the geometry taken by a textile or a reinforcement textile is linked in an intricate manner to its constitutive behaviour. This thesis proposes, investigates and validates a general numerical tool for the integrated and comprehensive analysis of textile geometry and constitutive behaviour as required toward engineering applications featuring technical textiles and textile reinforcements. The tool shall be general with regards to the textiles modelled and the loading cases applied. Specifically, the work aims at fulfilling the following objectives: 1) developing and implementing dedicated simulation software for modelling textiles subjected to various load cases; 2) providing, through simulation, geometric descriptions for different textiles subjected to different load cases namely compaction, relaxation and shear; 3) predicting the constitutive behaviour of the textiles undergoing said load cases; 4) identifying parameters affecting the textile geometry and constitutive behaviour under evolving loading; 5) validating simulation results with experimental trials; and 6) demonstrating the applicability of the simulation procedure to textile reinforcements featuring large numbers of small fibres as used in PMCs. As a starting point, the effects of reinforcement configuration on the in-plane permeability of textile reinforcements, through-thickness thermal conductivity of PMCs and in-plane stiffness of unidirectional and bidirectional PMCs were quantified systematically and correlated with specific geometric parameters. Variability was quantified for each property at a constant fibre volume fraction. It was observed that variability differed strongly between properties; as such, the simulated behaviour can be related to variability levels seen in experimental measurements. The effects of the geometry of textile reinforcements on the aforementioned processing and performance properties of the textiles and PMCs made from these textiles was demonstrated and validated, but only for simple cases as thorough and credible geometric models were not available at the onset of this work. Outcomes of this work were published in a peer-reviewed journal [101]. Through this thesis it was demonstrated that predicting changes in textile geometry prior and during loading is feasible using the proposed particle-based modelling method. The particle-based modelling method relies on discrete mechanics and offers an alternative to more traditional methods based on continuum mechanics. Specifically it alleviates issues caused by large strains and management of intricate, evolving contact present in finite element simulations. The particle-based modelling method enables credible, intricate modelling of the geometry of textiles at the mesoscopic scale as well as faithful mechanical modelling under load. Changes to textile geometry and configuration due to the normal compaction pressure, stress relaxation, in-plane shear and other types of loads were successfully predicted. During simulation, particles were moved randomly until a stable state of minimum strain energy in the system was reached; as particles moved upon iteration, the configuration of fibres in the textile changed under constant boundary conditions. Then boundary conditions were altered corresponding to strains imposed on the textile, and the system was iterated again towards a new state of minimum strain energy. The Metropolis algorithm of the Monte Carlo method was adopted in this specific implementation. The method relies on a statistical approach implemented in computational algorithms. In addition to geometrical modelling, the proposed particle-based modelling method enables the prediction of major elements of the constitutive behaviour of textiles and textile reinforcements. In fact, prediction of the constitutive behaviour is integral to the prediction of the meso-scale geometry. Simulation results obtained from the proposed particle-based modelling method were validated experimentally for yarns, single-layer textiles and multi-layer textiles undergoing compaction. Validation work showed that the particle-based modelling method replicates reality very faithfully, and it also showed the suitability of including Gutowski's function along with Hertz' function for representing lateral compaction of yarns. The procedure and results were accepted in final form for publication in a peer reviewed journal [104]. The capability of the proposed particle-based modelling method towards replicating the time-dependent relaxation and reconfiguration of woven textiles subjected to compaction loading was investigated. The capability, which was demonstrated for single and double-layers of plain woven textiles, is intrinsic to the modelling method. The method is unique in the fact that in contrary to work previously reported in the literature, it models the compaction and the relaxation seamlessly in the same simulations and environment. This work is being finalised towards submission for publication in a peer reviewed journal [103]. The proposed particle-based modelling method was also used for modelling in-plane shear in woven textiles. Simulation results were validated experimentally for a single-layer plain woven textile. Validation work showed that the particle-based modelling method reproduces experimental data and published trends very well. A novel algorithm for modelling friction was introduced, leading to results being obtained from a significantly less computationally demanding procedure in these simulations. This work was submitted for publication in a peer reviewed journal [102]. Finally the thesis discusses early work towards the application of the method to carbon fibre fabrics through the description of expansion algorithm (EA) to be used in modelling textiles made of yarns featuring very large numbers of fibres. Furthermore, additional modelling work is presented towards further manufacturing process involving technical textiles, namely textile bending and punching. The latter part is presented as early steps towards future work.
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Yang, Jingting. "Carbon Nanotubes Reinforced Composites for Wind Turbine Blades." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1315410407.

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Longenecker, Fredric W. "An analysis of the microstructure and reinforcement distribution of an extruded particle-reinforced Al 6061-10 volume percent A1O3 metal matrix composite." Thesis, Monterey, California. Naval Postgraduate School, 1993. http://hdl.handle.net/10945/39970.

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Approved for public release; distribution is unlimited.
This research was performed in conjunction with funding by DURALCAN- USA through a Cooperative Research and Development Agreement (CRDA). The program seeks to improve the ductility of cast and extruded Al 6061-Al203 metal matrix composite (MMC) materials. Annealing stages were designed to be introduced into combined extrusion and drawing operations during the processing of the MMCs. This work has included a comprehensive analysis of a composite's microstructure as related to processing strains ranging from zero to 5.32 during extrusion/ drawing operations. As the strains were increased, particle clusters present in the as-cast material were dispersed and the particle distribution became more uniform. Strains of greater than 4.0 were required in order to disperse the clusters and substantially eliminate banding of the particle distribution. The recrystallized grain size in the Al matrix decreased as increased processing strain was applied to the material. The grain size appeared to be stable and resistant to coarsening during subsequent solution heat treatment. Quantitative image analysis revealed no change in apparent particle size or aspect ratio indicating no fracturing of the particles during processing. The image analysis revealed no readily measurable feature to be used to assess uniformity of the particle distribution.
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Longenecker, Fredric W. "An analysis of the microstructure and reinforcement distribution of an extruded particle-reinforced Al 6061-10 volume percent A1₂O3 metal matrix composite /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA275050.

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Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, September 1993.
Thesis advisor(s): McNelley, Terry R. "September 1993." Includes bibliographical references. Also available online.
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Ratiarisoa, Lisa Barbara. "Etude de matériaux naturels 2D : Potentialités d'utilisation comme renfort de matériaux composites." Thesis, Antilles, 2019. http://www.theses.fr/2019ANTI0393.

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Face à la prise de conscience mondiale de la crise écologique, sociale et économique, lespotentialités de renforcement de composites par un matériau lignocellulosique, naturellement sousforme textile, les gaines foliaires du cocotier Cocos nucifera L. ont été évaluées dans ce travail. Laphase exploratoire de caractérisation des gaines a montré que cette ressource se présente sous laforme d’un textile bidirectionnel composé majoritairement de cellulose. Comparativement auxrenforts végétaux classiques, elle se montre moins hygroscopique, plus légère avec de meilleurespropriétés à la traction dans les directions préférentielles des fibres. Concernant la campagneexpérimentale sur l’impact des traitements, les gaines traitées à la xylanase et à la laccase neprésentent qu’une légère modification chimique de surface. Les fibres pyrolysées se montrent plushydrophobes mais moins résistantes traduisant un endommagement de ces dernières. Les gainestraitées à la chaux présentent une plus grande stabilité thermique. Ainsi, les gaines brutes ont étéretenues pour renforcer les panneaux de particules, la température de mise en oeuvre des panneauxétant inférieure à la température de début de dégradation des gaines non traitées. Le panneaurevêtu sur ses deux faces par la partie haute des gaines brutes constitue le candidat le plusprometteur pour le développement d’éco-isolant thermique. Une partie de ses propriétésmécaniques et physiques satisfait les exigences requises par les normes américaines eteuropéennes. Ses caractéristiques thermiques sont similaires à celles relevées dans la bibliographiepour les panneaux de faible masse volumique à particules lignocellulosiques
Facing the worldwide environmental, social and economic crisis awareness, the possibility ofreinforcing composites by a lignocellulosic textile reinforcement, the coconut leaf sheaths fromCocos nucifera L. was assessed in this work. The exploratory phase of sheaths characterizationhas shown that this resource forms a two-way textile made up of cellulose mostly. In contrast toclassic vegetable reinforcements, it is less hygroscopic, lighter with best tensile mechanicalproperties in preferential fibers directions. About the experimental campaign on the treatmentseffect, xylanase and laccase treated sheaths show a slight surface chemical change. Pyrolysedfibers are more hydrophobic but less resistant translating a damaging of them. Lime treatedsheaths show a higher thermal stability. Thus, raw sheaths were retained to reinforceparticleboards, the temperature of panels manufacture being lower than the start degradationtemperature of the raw sheaths. The two-faces panel covered with raw sheaths top part forms themost promising candidate to develop thermal eco-insulator. Some of its mechanical and physicalproperties fulfill american and european standards. Its thermal properties are similar to the onesnoticed in the bibliography for low density lignocellulosic particleboards
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Book chapters on the topic "Particles Reinforcement Composite"

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Kumar, Prashant, A. R. Gawahale, and Badri Rai. "Enhancement of Fracture Toughness of GFRP Laminates by Aluminium Particle Reinforcement." In Composite Structures, 173–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-662-11345-5_8.

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Dieringa, Hajo, and Karl Ulrich Kainer. "Particles, Fibers and Short Fibers for the Reinforcement of Metal Materials." In Metal Matrix Composites, 55–76. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527608117.ch2.

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Ataya, Sabbah, Marcus Korthäuer, and Essam El-Magd. "Deformation of Reinforcement on Size Effects in Metal/Metal Composite." In Particle and Continuum Aspects of Mesomechanics, 375–83. London, UK: ISTE, 2010. http://dx.doi.org/10.1002/9780470610794.ch39.

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Spowart, Jonathan E., and Daniel B. Miracle. "Improving the Tensile Response of 6061/SiC/25p Discontinuously-Reinforced Aluminum via Modification of Reinforcement Particle Morphology." In Affordable Metal-Matrix Composites for High Performance Applications II, 163–71. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787120.ch12.

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Baaske, M., A. Illgen, Anja Weidner, H. Biermann, and Felix Ballani. "Influence of ceramic particles and fibre reinforcement in metal matrix composites on the VHCF behaviour. Part II: Stochastic modelling and statistical inference." In Fatigue of Materials at Very High Numbers of Loading Cycles, 319–42. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-24531-3_15.

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Illgen, A., M. Baaske, Felix Ballani, Anja Weidner, and H. Biermann. "Influence of ceramic particles and fibre reinforcement in metal-matrix-composites on the VHCF behaviour. Part I: Experimental investigations of fatigue and damage behaviour." In Fatigue of Materials at Very High Numbers of Loading Cycles, 295–318. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-24531-3_14.

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Rajkumar, K., and S. Aravindan. "Tribological Characteristics of Copper-Nano Carbon Crystalline Composites." In Processing Techniques and Tribological Behavior of Composite Materials, 107–25. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-7530-8.ch004.

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In order to exploit the excellent properties, nano-particles can be used as reinforcement in the matrix of a metal. This chapter utilizes reinforcement of nano-particles through the innovative microwave processing technology for the fabrication of copper-crystalline carbon composites. In order to understand the friction and wear properties of microwave-sintered copper-CNT and copper-Nano Graphite (NG) composites, pin-on-disc wear experiments were carried out. High surface area of nano-graphite particles embedded in copper matrix exhibited high adherent carbonaceous tribo-layer at the contact surface. Copper-CNT and copper-nano graphite composites exhibited comparable tribological properties.
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Zindani, Divya, and Kaushik Kumar. "An Investigation Into Non-Conventional Machining of Metal Matrix Composites." In Non-Conventional Machining in Modern Manufacturing Systems, 175–87. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-6161-3.ch008.

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One of the recently developing fields is that of non-traditional machining of particle reinforced metal matrix composites. The complexity associated with traditional machining of particle reinforced metal matrix composite is very high, and therefore, the researchers have begun to show more focus towards non-traditional machining. In the present work, the investigation has been carried out for non-traditional machining such as laser beam machining, electro-chemical machining, abrasive water jet machining, and electro-chemical discharge. Material removal rate, surface finish, and the mechanism of machining has been studied for each of the aforementioned processes. The main material removal mechanisms as has been identified are melting, mechanical erosion, vaporization, and chemical dissolution. The investigation reveals that the major reasons for the damage of the machined surface are the presence of reinforcement particles and thermal degradation.
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F. Ibrahim, Mohamed, Hany R. Ammar, Agnes M. Samuel, Mahmoud S. Soliman, Victor Songmene, and Fawzy H. Samuel. "Why Al-B4C Metal Matrix Composites? A Review." In Advances in High-Entropy Alloys - Materials Research, Exotic Properties and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95772.

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The Al-B4C metal matrix composite (MMC) is characterized by its ability to absorb neutrons which makes it the most suitable shielding material for nuclear reactors. The present work was performed on two series of Al-B4C metal matrix composites made using a powder injection apparatus. In one series, commercially pure aluminum (A5) served as the matrix. For the second set, 6063 alloy was used. In all cases the volume fraction of B4C reinforcement particles (grit size 400 mesh, purity 99.5%) was approximately 15%. The volume fraction of the injected B4C particles was determined using a computer driven image analyzer. Measured amounts of Ti, Zr, and Ti + Zr, were added to the molten composites of both series. Microstructural characterization was carried out employing a field emission scanning electron microscope operating at 20 kV and equipped with an electron dispersive x-ray spectroscopic system (EDS). The same technique was applied to characterize the fracture behavior of the tested composites. Mechanical properties of these composites were investigated using impact testing, and ambient and high temperature tensile testing methods. Almost 1000 impact and tensile samples were tested following different heat treatments. The obtained results from these investigations are reported in this Chapter.
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Zhang, Weigang, Changming Xie, Min Ge, and Xi Wei. "C/C-ZrB2-ZrC-SiC Composites Derived from Polymeric Precursor Infiltration and Pyrolysis Part I." In MAX Phases and Ultra-High Temperature Ceramics for Extreme Environments, 413–34. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4066-5.ch013.

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Two-dimensional C/C-ZrB2-ZrC-SiC composites with three phases of ultra high temperature ceramics (UHTCs) are fabricated for the first time using blending pre-ceramic polymeric precursors through the traditional polymer infiltration and pyrolysis (PIP) technique, in which a porous carbon fiber reinforced pyrolytic carbon (C/C) with a porosity of about 60% is prepared as preforms. The fabricated composite possesses a matrix of 20ZrB2-30ZrC-50SiC, which is obtained by co-pyrolysis of three pre-ceramic polymers solution in xylene with certain molar ratios. Pyrolysis of these ZrB2-ZrC-SiC pre-ceramic precursors is studied with XRD characterization of the residual solids. The gas phase products are analysized with an on-line GC-MS-FTIR coupling technique, which confirms the formation of crystalline ZrC and ZrB2 from these precursors at temperatures above 1400°C. Possible mechanisms of pyrolysis and formation of pure ZrB2 from the precursors with various B/Zr molar ratios are suggested. The densification process and microstructures of the fabricated composite are studied. It is found that a composite with a bulk density of 2.06 g/cm3 and open porosity of 9.6% can be obtained after 16 PIP cycles. The formed matrix exhibits homogeneous dispersion of three matrix ceramics without any oxide impurities, i.e., the nano sized ZrB2 and ZrC particles dispersed in a continuous SiC ceramic with clean crystalline boundaries and particle dimensions less than 200 nm. No erosion or interface reaction occurs upon the carbon fiber reinforcement, which therefore avoids a dramatic deterioration of mechanical strength of carbon fiber and the composite. Improvement of PIP benefits from two aspects; firstly, the dense pyrolytic carbon interphase deposited on fiber surface by CVI serves as barrier coating and secondly, pyrolysis of the novel organic polymeric precursors does not release corrosive by-products such as hydrogen chloride.
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Conference papers on the topic "Particles Reinforcement Composite"

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S, Aigbodion V., Ozor P. A, and Mbohwa C. "Reinforcement of Polymer Bio-Composite with Melon Shell Particles for Engineering Application." In 2021 IEEE 4th International Conference on Nanoscience and Technology (ICNST). IEEE, 2021. http://dx.doi.org/10.1109/icnst52433.2021.9509327.

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Akinyede, Oladapo, Ram Mohan, Ajit Kelkar, and Jag Sankar. "Effect of Grafting Methodology of Nano-Particle Reinforcement on the Performance of Structural Hybrid Composite." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13783.

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Inclusion of nano-sized alumina by the surface treatment of S2 fiberglass (fiber modification) or ultrasonically exfoliated in epoxy resin system (resin modification) has been shown to provide epoxy-fiberglass hybrid composite systems with changes in their mechanical/ damage behavior under static tensile loading conditions. Integration of alumina nano-particles in epoxy-S2 fiberglass to form hybrid composites has not only shown improvements in the material properties, but also changes in the failure mechanism of the material system. This phenomenon is influenced by the changes in constituent interaction and its load transfer mechanism. In the processing of these hybrids composite systems, alumina nano-particles (sized at 110nm) are functionalized and grafted into epoxy composite material system during material processing via resin solution treatment and fabric surface treatment. These alumina embedding methodologies to form hybrid composites employed are the resin modification and fiber modification in conjunction with the conventional vacuum assisted resin transfer molding (VARTM) process for the manufacture of composite laminates. The chemical bonding and adhesion between the inorganic alumina and the organic resin is also enhanced via the functional treatment of the alumina particles with a coupling agent in the form of tris-2-methyoxyethoxy vinylsilane- T2MEVS (silane coupling agent). Processing methodologies are used to fabricate particulate reinforcement for various (<5%wt) compositions. Performance evaluation is carried to study the effect of the nano-particulate alumina on mechanical properties. Thermo-physical properties changes caused by particulate inclusion in hybrid material matrix phase are studied via Differential Scanning Calorimetry (DSC) and are also discussed.
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Niu, Ke, Armin Abedini, and Zengtao Chen. "The Influence of Multiple Inclusions on the Cauchy Stress of a Spherical Particle-Reinforced Composite Under Uniaxial Loading." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38542.

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This paper investigates the influence of multiple inclusions on the Cauchy stress of a spherical particle-reinforced metal matrix composite (MMC) under uniaxial tensile loading condition. The approach of three-dimensional cubic multi-particle unit cell is used to investigate the 15 non-overlapping identical spherical particles which are randomly distributed in the unit cell. The coordinates of the center of each particle are calculated by using the Random Sequential Adsorption algorithm (RSA) to ensure its periodicity. The models with reinforcement volume fractions of 10%, 15%, 20% and 25% are evaluated by using the finite element method. The behaviour of Cauchy stress for each model is analyzed at a far-field strain of 5%. For each reinforcement volume fraction, four models with different particle spatial distributions are evaluated and averaged to achieve a more accurate result. At the same time, single-particle unit cell and analytical model were developed. The stress-strain curves of multi-particle unit cells are compared with single-particle unit cells and the tangent homogenization model coupled with the Mori-Tanaka method. Only little scatters were found between unit cells with the same particle volume fractions. Multi-particle unit cells predict higher response than single particle unit cells. As the volume fraction of reinforcements increases, the Cauchy stress of MMCs increases.
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Bharath Sai Kumar, G. R., and S. Gopal Prakash. "Effect of Reinforcement and Chills on the Tribological Behaviour of Al-12% Si/B4C Composite." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-69149.

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Effect of reinforcement on the wear behavior of Aluminium-12%Si(LM6) reinforced with Boron Carbide (B4C) particles (quantity from 3 to 12 wt% in steps of 3 wt%; size 40–80μm) was investigated by a computerized pin-on-disk wear test rig under dry sliding conditions. Mild steel chill was used. Castings were prepared using dry sand moulds and the reinforcement particles were introduced into the matrix using Vortex-Route Method. Test result showed that this MMC was greatly influenced by the reinforcement and chill. It was found that 9 wt% of B4C particles in Aluminium-12%Si (LM6) alloy exhibited the least wear rate. An attempt to evaluate the tribological properties of this MMC with respect to reinforcement, chill and microstructure is made.
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Arul, Senthil G., Grant H. Kruger, Scott F. Miller, Tsung-Yu Pan, and Albert J. Shih. "Spot Friction Welding Joint Strength Improvement Using Localized Metal Matrix Composite Formation." In ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84126.

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This study investigates the application of metal particles in spot friction welding (SFW), a semi-solid state sheet metal joining process, to create the localized metal matrix composite (MMC) for the improvement of lap-shear strength. Ancorsteel® 1000 particles, compressed around the axial center-line of the tool between the upper and lower sheets, was demonstrated to form a localized MMC and effective as the reinforcement particles in aluminum 6111-T4 alloy sheets. Results revealed that the particle MMC in SFW increased the maximum lap-shear by 20%. In the stir-zone, steel particle sizes were significantly reduced due to breaking by mechanical action. Analysis revealed an aluminum-ferrous solid solution formation around the steel particle and aluminum matrix interfaces. In the heat-affected zone along the joint line, steel particles retained their original sizes and reinforced the joint interface. The load deflection curve and cross-section micrographs of the failed lap-shear tensile specimens indicated that, for steel particle MMC samples, the crack path was longer. This was due to a localized MMC forming along the joint interface and was identified as the primary factor responsible for the increase in SFW lap-shear strength.
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Idrisi, Amir Hussain, and Abdel-Hamid Ismail Mourad. "Fabrication and Wear Analysis of Aluminium Matrix Composite Reinforced by SiC Micro and Nano Particles." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65459.

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Metal matrix composites (MMCs) constitute an important class of weight-efficient structural material which empowering every field of engineering applications. Aluminium based metal matrix composites contains potential for high specific strength and advanced structural applications, as well as good elevated temperature resistance along with light weight application. However, need for improved tribological performance has led to the fabrication of newer variants of the composite. In the present work, aluminium based metal matrix composite (MMCs) developed through stir casting route by reinforcing different weight percentage of SiC micro (5% and 10%) and nano (1% and 2%) particles. In this research, 5083 aluminium alloy is used as matrix phase due its broad range of industrial applications. Wear behaviour of the developed aluminium matrix composite (AMC) was investigated under different conditions of applied load, operation time and speed. The analysis carried out at room temperature for three different loads (10N, 20N, and 30N) with varying four different operation times (30 mins, 60 mins, 90 mins, and 120 mins). The speed was kept constant at 1450 rpm during all experiments. The results of all considered composites are investigated and the composite with 2% SiC nano reinforcement is identified as a superior among all other composition for tribological applications point of view. Also the developed aluminium matrix composites have potential applications in many industries such as pressure vessels, pipe fittings, boat hulls, gears and pistons.
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Kumar, A., A. Devaraju, and B. Kotiveerachari. "Wear and Mechanical Properties of Aluminum Alloy Based Hybrid Composites [(SiC+Gr) and (SiC+Al2O3)] Fabricated by Friction Stir Processing." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64734.

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In this investigation, the influence of tool rotational speed on wear and mechanical properties of Aluminum alloy based surface hybrid composites fabricated via Friction stir processing (FSP) was studied. The fabricated surface hybrid composites have been examined by optical microscope for dispersion of reinforcement particles. Microstructures of all the surface hybrid composites revealed that the reinforcement particles (SiC, Gr and Al2O3) are uniformly dispersed in the nugget zone. It is observed that the microhardness is decreased with increasing the rotational speed and exhibited higher microhardness value in Al-SiC/Al2O3 surface hybrid composite at a rotational speed of 900 rpm, due to presence and pining effect of hard SiC and Al2O3 particles. It is also observed that high wear resistance exhibited in the Al-SiC/Gr surface hybrid composites at a rotational speed of 900 rpm due to presence of SiC and Gr acted as load bearing elements and solid lubricant respectively. The observed wear and mechanical properties have been correlated with microstructures and worn morphology.
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Shi, Jing, Yachao Wang, Shiqiang Lu, and Yun Wang. "Effect of Solid Solution Temperature on Material Properties and Microstructure of Inconel 718/TiC Composites by Selective Laser Melting." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52390.

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Selective laser melting (SLM) is an important additive manufacturing process. It applies focused laser energy to quickly melt and solidify material powders, and a controlled layered operation can result in a free form build that is often out of reach for machining processes. As such, it has attracted much attention in recent years. However, metal components produced by this process often have inferior mechanical properties, as compared with the counterparts by the traditional manufacturing processes. To strengthen the metal components by SLM, adding reinforcement particles and applying post treatment are regarded as the two effective ways. Although adding reinforcement particles to create metal matrix composites has been studied by researchers in literature, much fewer has been done to use post treatment processes to further improve the properties and performance of the metal matrix composites from SLM. In this study, a nano-TiC reinforced Inconel 718 composite is prepared using SLM technique. The material has 0.5 wt.% nano-TiC addition. Solid solution treatments at three levels of temperature (940, 980, 1020 °C) are carried out to evaluate the effect of the heat treatment methods on the microstructure and resulted mechanical properties of the composite material. The results of samples with and without heat treatment are also compared. SEM observations are carried out to analyze the microstructure of the composite and understand the reinforcing mechanism. Tensile tests are conducted to evaluate the mechanical properties of the formed composites. It is discovered that compared with the pure Inconel 718 by SLM, the Inconel 718-TiC composite exhibits improved ultimate tensile strength. Microscopy observation of as-built samples indicates that the dendritic structures of Inconel 718 is remarkably refined by the TiC particles. Suspected laves phase particles are observed in as-built Inconel-TiC composite, and they partially transform to large amount of needle-like δ phase during the solid solution treatment.
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Brogan, J. A., C. C. Berndt, A. Claudon, and C. Coddet. "Mechanical Properties of Spray-Formed Composite Structures." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p1173.

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Abstract In this study, ethylene methacrylic acid copolymer (EMAA) was used as the matrix to produce EMAA/Al2O3 and EMAA/NiCr composite coatings from dry-blended powder mixtures. This work was conducted to determine processing concerns when using similar sized reinforcement particles of different density in a flame-spray process. This work has utility for applications that require a reduction in mechanical wear and/or to confer upon a polymeric deposit a certain functional property by the introduction of value-added powder. Free-standing coatings were produced to test the mechanical properties of the sprayed deposit. The effects of the filler content on the secant modulus, yield stress, and tensile strength are discussed. The differences in deposition efficiencies among the EMAA, Al2O3, and NiCr are highlighted with respect to particle size and density.
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Ramesh, C. S., R. Keshavamurthy, and B. H. Channabasappa. "Tribological Properties of Cast Al6061-Si3N4 Composite." In ASME/STLE 2009 International Joint Tribology Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ijtc2009-15005.

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Si3N4 reinforced Al6061 composite is fabricated by liquid metallurgy technique. Si3N4 particles are nickel coated prior to addition to molten metal to improve its wettability and to ensure excellent bond between matrix and the reinforcement. Metallographic studies, friction and wear tests were carried out using pin on disc type machine. Coefficient of friction and wear rate were measured at loads varying from 20–100N and sliding velocities from 0.314–1.574m/s. It is observed that Al6061-4wt%Si3N4 composites exhibited lower wear rate and lower coefficient of friction when compared with matrix alloy under all the test conditions studied.
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