Download or read book Fabrication and Mechanical Properties of Carbon Fiber Reinforced Aluminum Matrix Composites by Squeeze Casting written by Zhiqiang Tu and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid modern technological changes and improvements bring great motivations in advanced material designs and fabrications. In this context, metal matrix composites, as an emerging material category, have undergone great developments over the past 50 years. Their primary applications, such as automotive, aerospace and military industries, require materials with increasingly strict specifications, especially high stiffness, lightweight and superior strength. For these advanced applications, carbon fiber reinforced aluminum matrix composites have proven their enormous potential where outstanding machinability, engineering reliability and economy efficiency are vital priorities. To contribute in the understanding and development of carbon fiber reinforced aluminum matrix composites, this study focuses on composite fabrication, mechanical testing and physical property modelling. The composites are fabricated by squeeze casting. Plain weave carbon fiber (AS4 Hexcel) is used as reinforcement, while aluminum alloy 6061 is used as matrix. The improvement of the squeeze casting fabrication process is focused on reducing leakage while combining thermal expansion pressure with post-processing pressing. Three different fiber volume fractions are investigated to achieve optimum mechanical properties. Piston-on-ring (POR) bend tests are used to measure the biaxial flexural stiffness and fracture strength on disc samples. The stress-strain curves and fracture surfaces reveal the effect of fiber-matrix interface bonding on composite bend behaviour. The composites achieved up to 11.6%, 248.3% and 90.1% increase in flexural modulus, strain hardening modulus and yield strength as compared with the unreinforced aluminum alloy control group, respectively. Analytical modelling and finite element modelling are used to comparatively characterise and verify the composite effective flexural modulus and strength. Specifically, they allowed iii evaluating how far the experimental results deviate from idealized assumptions of the models, which provides an insight into the composite sample quality, particularly at fiber-matrix interfaces. Overall, the models agree well with experimental results in identifying an improvement in flexural modulus up to a carbon fiber volume fraction of 4.81vol%. However, beyond a fiber content of 3.74vol%, there is risk of deterioration of mechanical properties, particularly the strength. This is because higher carbon fiber volume fractions restrict the infiltration and wetting of carbon fibre by the liquid, potentially leading to poor fiber-matrix interface bonding. It is shown that higher thermal expansion pressures and subsequent post-processing pressing can overcome this challenge at higher carbon fiber volume contents by reducing fiber-aluminum contact angle, improving infiltration, reducing defects such as porosity, and overall improving fiber-matrix bonding.
Download or read book Squeeze Casting as Alternative Fabrication Process for Carbon Fiber Reinforced Aluminium Matrix Composites written by Muhammad Faisal Alam and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminium matrix composites are among the most promising candidate materials for light weight and high strength applications such as transportation and armour. In a previous study 6061 aluminum matrix composites reinforced with plain weave carbon fiber preform (AS4 Hexcel) were successfully fabricated by squeeze casting using the laminate fabrication technique. This research aims at optimizing the fabrication process in order to achieve improved strength and mechanical properties. It focuses on the liquid infiltration squeeze casting method. Good mechanical bonding between fiber and aluminium is achieved thanks to improved infiltration and impregnation of the fabric by liquid aluminium. Oxidation products at fiber/aluminium interface and porosity are reduced. As a result, composites are produced with overall improved mechanical properties. The flexural strength is increased by up to 19.9% and 15.4% compared to the laminate approach and the reference 6061 aluminium alloy squeeze cast under identical conditions, respectively. Similarly, overall hardness is improved. However, the impact strength is reduced by 7.76% and 25.78% when compared to casts fabricated by the laminate method and the reference aluminium alloy, respectively. The thesis constitutes a good basis for further research on fiber and particle reinforced aluminium matrix composites with the goal of further improving fracture toughness, particularly for gradient materials used in armour applications.
Download or read book Fabrication of Aluminium Matrix Composites AMCs by Squeeze Casting Technique Using Carbon Fiber as Reinforcement written by Hasan Alhashmy and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites have been developed with great success by the use of fiber reinforcements in metallic materials. Fiber reinforced metal matrices possess great potential to be the next generation of advanced composites offering many advantages compared to fiber reinforced polymers. Specific advantages include high temperature capability, superior environmental stability, better transverse modulus, shear and fatigue properties. Although many Metal Matrix Composites (MMCs) are attractive for use in different industrial applications, Aluminium Matrix Composites (AMCs) are the most used in advanced applications because they combine acceptable strength, low density, durability, machinability, availability, effectiveness and cost. The present study focuses on the fabrication of aluminium matrix composite plates by squeeze casting using plain weave carbon fiber preform (AS4 Hexcel) as reinforcement and a matrix of wrought aluminium alloy 1235-H19. The objective is to investigate the process feasibility and resulting materials properties such as hardness at macro- and micro-scale, impact and bend strength. The properties obtained are compared with those of 6061/1235-H19 aluminium plates that were manufactured under the same fabrication conditions. The effect of fiber volume fraction on the properties is also investigated. Furthermore, the characterization of the microstructure is done using Optical Microscopy (OM) and Scanning Electron Microscopy (SEM) in order to establish relationships between the quality of the fiber/aluminium interface bond and mechanical properties of the composites. In conclusion, aluminium matrix composite laminate plates were successfully produced. The composites show a good chemical bond between the fiber and the aluminium matrix. This bond resulted from heterogeneous precipitation of aluminium carbides (Al4C3) at the interface between aluminium matrix and carbon fiber. The hardness at macro- and micro-scale of the composites increases by over 50% and the flexural modulus increases by about 55%. The toughness of the composite decreases due to the presence of brittle phases which can be improved by better oxidation prevention. Also, an optimal carbon volume fraction was observed that provides optimal properties including peak hardness, peak stiffness and peak toughness.
Download or read book Report of the Research Group for Fiber reinforced Aluminum Matrix Composites written by and published by . This book was released on 1986 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon Carbide Particulate Reinforced Aluminum Alloys Matrix Composites Fabricated by Squeeze Casting Method written by Adem Onat and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Matrix Composites (MMCs) are now attracting enormous interest, because of their superiority in strength, stiffness, wear resistance, elevated temperature strength or other engineering properties. Parallel to commercialisation, there are research centres throughout the world that are actively researching further development and exploitation of net or near net shape fabrication process. In this book, the production and characterisation of SiC particles reinforced Al alloy matrix composites produced by squeeze casting are investigated. The effects of volume fraction of SiC on microstructure, mechanical properties are examined as well. Also the results of the production of gravity cast matrix alloy, to determine the effect of pressure on microstructure and properties are described in this book.
Download or read book Metal Matrix Composites A Modern Approach to Manufacturing written by Virat Khanna, Prianka Sharma, Santosh Kumar and published by Bentham Science Publishers. This book was released on 2024-03-28 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of metal matrix composite manufacturing, including fabrication methods, characterization techniques, and manufacturing applications. 10 chapters cover fundamental and applied topics on matrix metal composites. The book is a resource for all readers seeking to gain an in-depth understanding of metal matrix composites with its relevance to the modern industry. Key Features - Includes fully referenced contributions by experts in materials science - Provides an introduction to the subject, and a future prospective for a broad range of readers - Reviews current knowledge on fabrication techniques and structure property relationships of metal matrix composites - Includes dedicated chapters for reinforced composites (carbon fiber, carbon nanotubes, aluminium) - Includes guidance on material wear and tear and - Provides an investigation for process optimization for EDM for newly developed composites It is designed to be an essential resource for students and professionals in the field of materials science and engineering, as well as researchers and engineers working on metal matrix composite in manufacturing industries.
Download or read book Fabrication of Continuous Carbon Fiber Reinforced Aluminum Matrix Composites Using an Acoustic Technique written by Rao V. Yallapragada and published by . This book was released on 1996 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Metal Matrix Composites written by Yoshinori Nishida and published by Springer Science & Business Media. This book was released on 2013-01-13 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first of its kind to deal with fabrication processes of metal matrix composites (MMCs) theoretically, experimentally, systematically, and instructively. The theoretical bases of fabrication processes and recycling processes of MMCs are established in this volume. Most other books in the field are concerned with the mechanics of properties, which is not easy for readers to grasp, and they introduce fabrication processes only as techniques without theoretical discussion. Because this book provides a clear image of the fabrication processes of MMCs without using complicated mathematics, readers can use production theory to create new composites. Also, fundamental concepts of recycling of MMCs are given in this book for the first time so as to meet the demands for solving environmental problems. This work originally was published in Japanese and has attained a high reputation among Japanese professors and researchers in the field.
Download or read book Metal Matrix Composites in Industry written by Alexander Evans and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal matrix composites are making tangible inroads into the "real" world of engineering. They are used in engineering components such as brake rotors, aircraft parts, combustion engines, and heat sinks for electronic systems. Yet, outside a relatively limited circle of specialists, these materials are mostly unknown. Designers do not as a rule think of using these materials, in part because access to information is difficult as these materials have not really entered engineering handbooks. Metal Matrix Composites in Industry is thus useful to engineers who wish to gain introductory knowledge of these materials and who want to know where "to find" them. Additionally, it provides researchers and academics with a survey of current industrial activity in this area of technology.
Download or read book Metal Matrix Composites written by Antonio Contreras Cuevas and published by Springer. This book was released on 2018-10-27 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers several aspects of the synthesis of composites by the pressureless infiltration technique. It describes the methods used to obtain green preforms, such as cold pressed and hot sintering, describing the heating time, load, and time required for pressing the preforms. Additionally, wettability phenomena, which is directly related on infiltration, is extensively described. Wettability process and interfacial reactions are analyzed in many ceramic-metal systems prior to fabricate the composites. A complete description of fabrication processes for Metal Matrix Composites is included. An extensive section on structural, chemical, and mechanical characterization of composites fabricated with aluminum and magnesium alloys as matrices reinforced with titanium carbide (TiC), aluminum nitride (AlN), silicon carbide (SiC) and alumina (Al2O3) is included. Relevant techniques for joining composites, such as welding and brazing are addressed. As well as issues pertaining to the corrosion and wear of composites are discussed as well. Corrosion behavior of some composites exposed to aqueous media was analyzed. Corrosion of composites using TiC and SiC like reinforcement and Al, Ni, and some Al-Cux, Al-Mgx and Al-Cu-Li alloys like matrix is discussed extensively. The structural characterization techniques addressed include: scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), optical microscopy (OM), differential thermal analysis (DTA), high resolution transmission electron microscopy (HRTEM), and thermogravimetry analysis (TGA). Mechanical testing including hardness, elastic modulus, tension tests, and impact tests were used in the characterization of composites. Theoretical models for prediction of some mechanical properties are included too.
Download or read book Composites and Their Properties written by Ning Hu and published by BoD – Books on Demand. This book was released on 2012-08-22 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promises for their potential applications in various industries ranging from aerospace to construction due to their various outstanding properties. This book mainly deals with fabrication and property characterization of various composites by focusing on the following topics: functional and structural nanocomposites, numerical and theoretical modelling of various damages in long fiber reinforced composites and textile composites, design, processing and manufacturing technologies and their effects on mechanical properties of composites, characterization of mechanical and physical properties of various composites, and metal and ceramic matrix composites. This book has been divided into five sections to cover the above contents.
Download or read book A New Fabrication Method of Continuous Fiber Reinforced Metal Matrix Composites written by Huizhong Wang and published by . This book was released on 1994 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Information Bulletin written by and published by . This book was released on 1993 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processing and Fabrication of Advanced Materials VIII written by K. A. Khor and published by World Scientific. This book was released on 2000 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the technical papers presented at the international symposium entitled OC Processing and Fabrication of Advanced Materials VIIIOCO, held in Singapore in 1999. This was the eighth in a series of symposia bringing together engineers and researchers from industry, academia and national laboratories, working on aspects related to the processing, fabrication and characterization of advanced materials, to present and discuss their latest findings. The proceedings also contain technical papers presented at two special symposia on biomaterials and magnesium technology. Contents: Advanced Metallics; Biomaterials; Advanced Ceramics; Intermetallics; Magnesium Technology; Metal Matrix Composites (MMC); Polymer and Composites; Powder Injection Molding. Readership: Mechanical and production engineers."
Download or read book ICCM VI written by F. L. Matthews and published by . This book was released on 1987 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Matrix Composites written by Karl U. Kainer and published by John Wiley & Sons. This book was released on 2006-08-21 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the properties of MMCs can be directly designed "into" the material, they can fulfill all the demands set by design engineers. This book surveys the latest results and development possibilities for MMCs as engineering and functional materials, making it of utmost value to all materials scientists and engineers seeking in-depth background information on the potentials these materials have to offer in research, development and design engineering.
Download or read book Carbon Carbon Materials and Composites written by John D. Buckley and published by William Andrew. This book was released on 2012-12-02 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major areas of carbon-carbon materials and composites are described in this comprehensive volume. It presents data and technology on the materials and structures developed for the production of carbon-carbon materials and composites. The text is composed of papers by 13 noted authors in their areas of expertise relating to the processes and production of these material systems and structures. The subject matter in the book is arranged to lead the reader through materials processing, fabrication, structural analysis, and applications of typical carbon-carbon products. The information provided includes: fiber technology, matrix material, design of composite structures, manufacturing techniques, engineering mechanics, protective coatings, and structural applications using carbon-carbon materials and composites.
