Mesophase Pitch-based Carbon Fiber and Its Composites PDF Download
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Author: Chang Liu
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
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Book Description
The objective of this study is to investigate the relationship among process, structure, and property of the UTSI pitch-based carbon fibers and optimize carbon fiber's mechanical properties through the stabilization process. Various analysis techniques were employed throughout these investigations which include the Scanning Electron Microscope (SEM), optical microscope, Dia-stron system, MTS, and ImageJ. Several fiber process techniques including fiber spinning, stabilization, and carbonization were explored to determine the effect of the thermal process on the fiber yield, fiber diameter, the sheath-core structure of stabilized fibers, the pac-man and hollow core structures of carbonized fibers, and the resulting mechanical properties of the carbon fibers. It was found that stabilization time and the temperature stepping had a great deal on influence on the resulting carbon fibers. Larger diameter fiber is easy to form sheath-core structure in the stabilization process. Pac-man structure was developed at 600°C during the carbonization. Both stabilization duration and the carbonization temperature control the resulting carbon fiber diameter and fiber structure defects such as the pac-man and hollow core defects. Multi-step stabilization can reduce the total stabilization duration and improve the mechanical properties of the resulting carbon fibers. Fiber structure non-uniformities including fiber diameter distributions for a bundle fiber or along a single fiber, and pac-man angles were determined. Statistical analysis revealed the distribution of the carbon fiber cross-sectional areas and the result is compared against commercial available carbon fibers. Carbon fiber sandwiched composites (CFSCs) were fabricated with UTSI carbon fiber and commercial PAN-based carbon fibers. Several configurations of sandwich structured composites were explored to test the flexural properties with varying sandwich thickness.
Author: Chang Liu
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
Get Book Here
Book Description
The objective of this study is to investigate the relationship among process, structure, and property of the UTSI pitch-based carbon fibers and optimize carbon fiber's mechanical properties through the stabilization process. Various analysis techniques were employed throughout these investigations which include the Scanning Electron Microscope (SEM), optical microscope, Dia-stron system, MTS, and ImageJ. Several fiber process techniques including fiber spinning, stabilization, and carbonization were explored to determine the effect of the thermal process on the fiber yield, fiber diameter, the sheath-core structure of stabilized fibers, the pac-man and hollow core structures of carbonized fibers, and the resulting mechanical properties of the carbon fibers. It was found that stabilization time and the temperature stepping had a great deal on influence on the resulting carbon fibers. Larger diameter fiber is easy to form sheath-core structure in the stabilization process. Pac-man structure was developed at 600°C during the carbonization. Both stabilization duration and the carbonization temperature control the resulting carbon fiber diameter and fiber structure defects such as the pac-man and hollow core defects. Multi-step stabilization can reduce the total stabilization duration and improve the mechanical properties of the resulting carbon fibers. Fiber structure non-uniformities including fiber diameter distributions for a bundle fiber or along a single fiber, and pac-man angles were determined. Statistical analysis revealed the distribution of the carbon fiber cross-sectional areas and the result is compared against commercial available carbon fibers. Carbon fiber sandwiched composites (CFSCs) were fabricated with UTSI carbon fiber and commercial PAN-based carbon fibers. Several configurations of sandwich structured composites were explored to test the flexural properties with varying sandwich thickness.
Author: Deborah Chung
Publisher: Elsevier
ISBN: 0080500730
Category : Technology & Engineering
Languages : en
Pages : 229
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Book Description
In Carbon Fiber Composites, the reader is introduced to a wide range of carbon fiber composites, including polymer-matrix, metal matrix, carbon-matrix, ceramic-matrix and hybrid composites. The subject is examined in a tutorial fashion, so that no prior knowledge of the field is required. In contrast to other books on composites, this book emphasizes materials rather than mechanics, as the prominence of composite materials has resulted from their increased presence in applications other than structure. Provides up-to-date information on the entire spectrum of carbon fiber composites Emphasizes processing as the foundation of composite materials development Addresses the processing, properties and applications of each type of material systematically
Author: Leighton H. Peebles
Publisher: CRC Press
ISBN: 1351087320
Category : Technology & Engineering
Languages : en
Pages : 260
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Book Description
Carbon Fibers presents an up-to-date review of the progress pertaining to the formation of carbon fibers from rayon, acrylic, and pitch precursors. The book emphasizes the preparation, characterization, and properties of commercial materials. It also considers the compressive properties of carbon fibers, the lack of correlation between surface characterization and fiber-matrix interactions, and the discrepancy between surface composition as determined by XPS and the reaction of surface groups with chemical reagents. Other topics discussed include:
Author: J.L. Figueiredo
Publisher: Springer Science & Business Media
ISBN: 9401568472
Category : Science
Languages : en
Pages : 577
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Book Description
Conventional synthetic materials, like metals, ceramics or glass, are usually isotropic substances, and their suitability for structural applications is achieved by morphological design and combination in the macroscopic scale. However, in modem engineering this is often not acceptable. As an alternative, the use of non-homogeneous, anisotropic materials, with significant stiffness and strength only in the directions these mechanical properties are really needed, can lead to enormous material (and weight) savings. This is the case of multiphase systems called composite materials. In these composites, different material parts are added and arranged geometrically, under clearly designed and controlled conditions. Usually, a structure of fibers provides strength and stiffness and a matrix helds them together, whilst providing the geometric form. Carbon fibers are among the high-performance fibers employed in these advanced structural composites, which are profoundly changing many of today's high technology industries. New research and development challenges in this area include upgrading the manufacturing process of fibers and composites, in order to improve characteristics and reduce costs, and modifying the interfacial properties between fibers and matrix, to guarantee better mechanical properties. The interdisciplinary nature of this "new frontier" is obvious, involving chemistry, materials science, chemical and mechanical engineering. Other topics, which more often are treated separately, are also important for the understanding of the processes of fiber production. Carbon filaments is one such topic, as the study of their mechanisms of nucleation and growth is clearly quite relevant to the production of vapour-grown carbon fibers.
Author: John D. Buckley
Publisher: William Andrew
ISBN: 0815516290
Category : Technology & Engineering
Languages : en
Pages : 295
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Book Description
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.
Author: Japan The Society of Fiber Science and Techno
Publisher: Springer
ISBN: 4431552030
Category : Technology & Engineering
Languages : en
Pages : 441
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Book Description
This book reviews the key technologies and characteristics of the modern man-made specialty fibers mainly developed in Japan. Since the production of many low-cost man-made fibers shifted to China and other Asian countries, Japanese companies have focused on production of high-quality, high-performance super fibers as well as highly functionalized fibers so-called ‘Shin-gosen’. ZylonTM and DyneemaTM manufactured by Toyobo, TechnoraTM produced by Teijin, and VectranTM developed by Kuraray are those examples of super fibers. Carbon fibers ToraycaTM from Toray have occupied the most advanced high-performance application area. Various types of polyester fibers having design-shaped cross-sections and special fiber morphologies and those showing specific physico-chemical properties have also been developed to acquire a high-value textile market of the world. This book describes how these high-tech fibers have been developed and what aspects are the most important in each fiber based on its structure-property relationship. Famous specialists both in industry and academia are responsible for the contents, explaining the design concepts and the special technologies for the production of these special fibers. For university teachers and students, this volume is an excellent textbook that elucidates the basic concepts of modern fibers. At the same time, researchers, both in academia and industry, will find a comprehensive overview of recent man-made fibers. This publication, presenting the most easily understandable general survey of specialty man-made fibers to date, is dedicated to the 70th-anniversary of the Society of Fiber Science and Technology, Japan.
Author: Peter Morgan
Publisher: CRC Press
ISBN: 142002874X
Category : Technology & Engineering
Languages : en
Pages : 1200
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Book Description
Most literature pertaining to carbon fibers is of a theoretical nature. Carbon Fibers and their Composites offers a comprehensive look at the specific manufacturing of carbon fibers and graphite fibers into the growing surge of diverse applications that include flameproof materials, protective coatings, biomedical and prosthetics application
Author: Pierre Delhaes
Publisher: CRC Press
ISBN: 0203166787
Category : Technology & Engineering
Languages : en
Pages : 260
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Book Description
This book is devoted to advanced composite materials based on carbon fibers issued from different precursors and various matrices. Written by internationally recognized specialists, Fibers and Composites is divided into three main parts. The first presents an alternative way to process and prepare carbon fibers issued from either natural or art
Author: Michio Inagaki
Publisher: Elsevier
ISBN: 0080525709
Category : Technology & Engineering
Languages : en
Pages : 241
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Book Description
The discovery of fullerenes and nanotubes has greatly stimulated the interest of scientists and engineers in carbon materials, and has resulted in much scientific research. These materials have provided us with many interesting ideas and potential applications, some of them practical and some simply dreams for the future. In the early 1960s, carbon fibers, glass-like carbons and pyrolytic carbons were developed which were quite different from the carbon materials that had previously been used. Carbon fibers exhibited surprisingly good mechanical properties, glass-like carbons exhibited brittle fracture resulting in a conchoidal fracture surface similar to sodium glass, and giving no carbon dust, and pyrolytic carbons were produced by a new production process of chemical vapour deposition and showed very high anisotropy. These carbons materials made a great impact not only on the carbon community who had been working on carbon materials but also on people working in the fields of materials science and engineering. They were used to develop a variety of new applications in technological fields, such as semiconductors, microelectronics, aerospace and high temperature, etc. These newly developed carbon materials were called NEW CARBONS, in comparison with carbon materials such as artificial graphites represented by graphite electrodes, carbon blacks and activated carbons, which maybe thought of as CLASSICAL CARBONS. Later, other new carbons, such as activated carbons and those with novel functions, isotropic high-density graphites, intercalation compounds, various composites, etc., were developed. In 1994, Professor Michio Inagaki published a book entitled "New Carbon Materials — Structure and Functions" with his friend Professor Yoshihiro Hishiyama of Musashi Institute of Technology, published by Gihoudou Shuppan in Japanese. However, progress in the fields of these new carbons is so rapid that the previous book is already out of date. For this reason the author has decided to write an English text on New Carbons. The text focuses on New Carbons based on hexagonal networks of carbon-atoms, i.e. graphite-related materials. The fundamental concept underlying this book is that the structure and functions of these materials are principally governed by their texture. The aim is to give readers a comprehensive understanding of New Carbons through the description of their structure and texture, along with the properties that are largely dependent on them.
Author: Hubert Jaeger
Publisher: John Wiley & Sons
ISBN: 3527674039
Category : Technology & Engineering
Languages : de
Pages : 1008
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Book Description
An excellent overview of industrial carbon and graphite materials, especially their manufacture, use and applications in industry. Following a short introduction, the main part of this reference deals with industrial forms, their raw materials, properties and manifold applications. Featuring chapters on carbon and graphite materials in energy application, and as catalysts. It covers all important classes of carbon and graphite, from polygranular materials to fullerenes, and from activated carbon to carbon blacks and nanoforms of carbon. Indispensable for chemists and engineers working in such fields as steel, aluminum, electrochemistry, nanotechnology, catalyst, carbon fibres and lightweight composites.
