Download or read book A Study of Low Density High Strength High Modulus Filaments and Composites written by J. A. Alexander and published by . This book was released on 1966 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program has been concerned with the fabrication and testing of three types of advanced composite materials: (1) Metals reinforced with continuous filaments (2) Metals reinforced with single crystal whiskers (3) Multilaminar composites consisting of alternate layers of metal and ceramic. In order to fabricate the filament composites, continuous boron, and batch boron carbide, and silicon carbide filaments were synthesized at GTC. Electrodeposited nickel was reinforced by both 4 v/o tungsten wire and 20-30 v/a boron filament in aligned configuration. Tensile testing of these composites yielded tensile strengths in all cases that exceeded theoretical values. calculated by adding the volume-weighted tensile strengths of the components. This effect was most pronounced with the boron filament. Sapphire whisker composites of powder metallurgically produced Al-6Si_matrix and electrodeposited nickel were fabricated and tested. In all cases the whiskers were more or less randomly aligned. Contents up to 16 weight percent whiskers in Al-6Si strengthened the matrix. Approximately 10 weight percent of whiskers in electrodeposited nickel did not strengthen this matrix, although heat treatments did improve the as formed strength. Work was carried out on the techniques for depositing columbium films and alumina films to form alumina-columbium multilaminar composites. However no composite specimens were fabricated.
Download or read book Handbook of Composites written by George Lubin and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of advanced composites, tion. Forecasts indicate that the potential spanning a brief period from inception to usage in automobiles in the early 1990's will application of only 15 to 20 years, epitomizes amount to millions of pounds of advanced the rapidity with which a generation's change composites. in the state-of-the-art can take place. This is in We find ourselves in a peculiar position. marked contrast to past history, in which it The hardware capability is progressing so has usually required 25 years or more of rapidly that the knowledge and familiarity of research before a new structural material was the designer can hardly keep pace. We have an technologically ready. obligation now not just to mature this ad In the mid-1950's the U.S. Air Force identi vanced technology and its applications, but fied the promise for early application of a new also to communicate the state-of-the-art to the class of materials-advanced composites designer in a form in which it can be applied and established its feasibility by the fabrication readily to practical structures. I believe that of raw fiber with exceptional strength- and this book, Handbook of Composites, will modulus-to-weight ratios. The practical fabrica clearly provide a portion of this missing link.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1969 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1966 with total page 2088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 850 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 A Selected Listing of NASA Scientific and Technical Reports for 1966 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966-12 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of AF Materials Laboratory Reports written by Air Force Materials Laboratory (U.S.) and published by . This book was released on 1968-07 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal matrix Composites written by and published by . This book was released on 1969 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography on Fibers and Composite Materials 1969 1972 written by J. N. Fleck and published by . This book was released on 1972 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bibliography contains over 3000 references, including translated items from Japan, West Germany, U.S.S.R., and other countries as well as references of original English language publications of the United States and United Kingdom. The references are categorized by specific fiber and matrix materials. In addition, many references are grouped in the general categories of compatibility studies, theory and design, testing and evaluation, application, and fabrication. A group of references to general review articles is included. The references represent the holdings of the former Defense Ceramic Information Center (DCIC) plus those of the Fibers and Composites Center (FCIC) at Battelle's Columbus Laboratories and MCIC. (Author).
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1970 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1966-11 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Matrix Composites written by C.T. Lynch and published by CRC Press. This book was released on 2018-01-18 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of reinforcing a material by the use of a fiber is not a new one. The Egyptian brick layer employed the same principle more than three thousand years ago when straw was incorporated into the bricks. More recent examples of fiber reinforced composites are steel-reinforced concrete, nylon and rayon cord reinforced tires, and fiberglass reinforced plastics. In the last several years considerable progress has been made on new composite structures particularly utilizing boron (on tungsten substrate) fibers in various matrices. Many of these advances have been reviewed recently by P. M. Sinclair1 and by Alexander, Shaver, and Withers.2 An excellent earlier survey is available by Rauch Sutton, and McCreight.3 Boron-reinforced epoxy composites are being fabricated and tested as jet engine components, fuselage components, and even as a complete aircraft wing because of the tremendous gain in experimentally demonstrated properties such as modulus, strength, and fatigue resistance, particularly on a weight normalized (e.g., strength/density) basis. Other than glass/epoxy and boron/ epoxy composites and perhaps boron/aluminum, the systems now under study are in the early stages of research and development. These include other boron/metal composites, graphite/polymer, graphite/metal, graphite/graphite, alumina/metal, and aligned eutectic (directionally, solidified) combinations. As Sinclair points out, designers are wary about filamentary composites becausethere is little background information and scant experience.
Download or read book Materials Technology an Interamerican Approach written by and published by . This book was released on 1968 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
