Download or read book Graphite Fibers and Filaments written by Mildred S. Dresselhaus and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was begun after three of the present authors gave a series of in vited talks on the subject of the structure and properties of carbon filaments. This was at a conference on the subject of optical obscuration, for which submicrometer diameter filaments with high length-to-diameter ratios have potential applications. The audience response to these talks illustrated the need of just one scientific community for a broader knowledge of the struc ture and properties of these interesting materials. Following the conference it was decided to expand the material presented in the conference proceedings. The aim was to include in a single volume a description of the physical properties of carbon fibers and filaments. The research papers on this topic are spread widely in the literature and are found in a broad assortment of physics, chemistry, materials science and engineering and polymer science journals and conference proceedings (some of which are obscure). Accordingly, our goal was to produce a book on the subject which would enable students and other researchers working in the field to gain an overview of the subject up to about 1987.
Download or read book Graphite Fibers and Filaments written by Mildred S Dresselhaus and published by . This book was released on 1988-06-10 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Fibers Filaments and Composites written by J.L. Figueiredo and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Technology of Carbon and Graphite Fiber Composites written by John Delmonte and published by Van Nostrand Reinhold Company. This book was released on 1981 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Fibers and Their Composites written by Peter Morgan and published by CRC Press. This book was released on 2005-05-20 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Tensile and Cyclic Fatigue Properties of Graphite Filament wound Pressure Vessels at Ambient and Cryogenic Temperatures written by Morgan P. Hanson and published by . This book was released on 1969 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon and Graphite Fibers written by Marshall Sittig and published by William Andrew. This book was released on 1980 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transverse Expansion of Individual Carbon and Graphite Filaments written by Patrick M. Sheaffer and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laser diffraction technique for measuring the diameter of fine filaments has been adapted for measuring the transverse coefficient of thermal expansion (CTE) of individual carbon and graphite filaments. CTE was measured on three types of polyacrylonitrile (PAN)-derived filaments and one type of pitch-derived filament that had already been heat-treated to 2600 C. The measurements are unique because the filaments were in a surface-traction-free environment; the data are therefore inherently more accurate than those obtained by conventional methods. Significant variations in the transverse CTE of pitch-based filaments were observed; they have been attributed to local differences in the (transverse) preferred orientation of the graphite layer planes in those filaments. Individual pitch-based filaments were found to twist about their axis when constrained at both ends and heated; the center of the filament presumably undergoes maximum deflection. Keywords: Thermal expansion, Thermal strain, Carbon filaments, Carbon fibers, Composites, Graphite Fibers.
Download or read book Graphite Fibers from Pitch written by and published by . This book was released on 1976 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Type P fibers are capable of achieving a tensile strength of 4.0 GPa (approximately 600 Kpsi) with an elongation to break approacing 2.0 percent. However, such properties have been measured only on monofilaments with equal to or less than 7.5 micro meter diameter, carbonized at 1700 C and prepared from a mesophase pitch derived from a carefully filtered precursor. The modulus of the fibers is easily increased by heating to higher temperatures, but the tensile strength is usually reduced by such treatment. The tensile strength of the fiber shows a strong dependence on the gauge length, down to about .3 mm. Frequency-of-break analysis revealed a bimodal distribution. Fiber failure below 2.0 GPa (300 Kpsi) is induced by macro-flaws such as foreign particles, voids and surface cracks, all of which were identified by optical and electron microscopy. The wedge-like crack, very common in yarn filaments may cause early fiber failure, particularly when the crack follows a tight spiral along the fiber axis, as it was observed in isolated cases. The ultimate tensile strength appears to be determined by crystallographic features, such as crystallite size, number of defects, extend of misorientation, as well as by the symmetry of fiber cross section. A cylindrical 'tree-trunk' symmetry always results in higher strength than the radial, 'wheel-spoke' symmetry.
Download or read book Carbon Fibers written by Jean-Baptiste Donnet and published by . This book was released on 1990 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Fibers written by Leighton H. Peebles and published by CRC Press. This book was released on 2018-01-18 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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:
Download or read book Use of Low temperature Tar Pitch for the Production of Carbon Or Graphite Fibers Or Filaments written by I. Romey and published by . This book was released on 1978 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1978 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Performance Structural Fibers for Advanced Polymer Matrix Composites written by National Research Council and published by National Academies Press. This book was released on 2005-05-09 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military use of advanced polymer matrix composites (PMC)â€"consisting of a resin matrix reinforced by high-performance carbon or organic fibersâ€"while extensive, accounts for less that 10 percent of the domestic market. Nevertheless, advanced composites are expected to play an even greater role in future military systems, and DOD will continue to require access to reliable sources of affordable, high-performance fibers including commercial materials and manufacturing processes. As a result of these forecasts, DOD requested the NRC to assess the challenges and opportunities associated with advanced PMCs with emphasis on high-performance fibers. This report provides an assessment of fiber technology and industries, a discussion of R&D opportunities for DOD, and recommendations about accelerating technology transition, reducing costs, and improving understanding of design methodology and promising technologies.
Download or read book Handbook of Carbon Graphite Diamonds and Fullerenes written by Hugh O. Pierson and published by William Andrew. This book was released on 2012-12-02 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a review of the science and technology of the element carbon and its allotropes: graphite, diamond and the fullerenes. This field has expanded greatly in the last three decades stimulated by many major discoveries such as carbon fibers, low-pressure diamond, and the fullerenes. The need for such a book has been felt for some time. These carbon materials are very different in structure and properties. Some are very old (charcoal), others brand new (the fullerenes). They have different applications and markets and are produced by different segments of the industry.Few studies are available that attempt to review the entire field of carbon as a whole discipline. Moreover these studies were written several decades ago and a generally outdated since the development of the technology is moving very rapidly and scope of applications is constantly expanding and reaching into new fields such as aerospace, automotive, semiconductors, optics, and electronics. In this book the author provides a valuable, up-to-date account of both the newer and traditional forms of carbon, both naturally occurring and man-made. This volume will be a valuable resource for both specialists in, and occasional users of carbon materials.
Download or read book Carbon Fibers written by Leighton H. Peebles and published by CRC Press. This book was released on 1995 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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:
Download or read book Density of Intercalated Graphite Fibers written by and published by . This book was released on 1989 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
