Metal Matrix Composites

Metal Matrix Composites PDF Author: C.T. Lynch
Publisher: CRC Press
ISBN: 1351091344
Category : Science
Languages : en
Pages : 468

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Book Description
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.

Metal Matrix Composites

Metal Matrix Composites PDF Author: C.T. Lynch
Publisher: CRC Press
ISBN: 1351091344
Category : Science
Languages : en
Pages : 468

Get Book Here

Book Description
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.

Space Transportation System Technology Symposium. Volume 5 - Operations, Maintenance, and Safety /including Cryogenic Systems/

Space Transportation System Technology Symposium. Volume 5 - Operations, Maintenance, and Safety /including Cryogenic Systems/ PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228

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Book Description


Corrosion Abstracts

Corrosion Abstracts PDF Author:
Publisher:
ISBN:
Category : Corrosion and anti-corrosives
Languages : en
Pages : 880

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Book Description


Fundamentals of Electric Propulsion

Fundamentals of Electric Propulsion PDF Author: Dan M. Goebel
Publisher: John Wiley & Sons
ISBN: 0470436263
Category : Technology & Engineering
Languages : en
Pages : 528

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Book Description
Throughout most of the twentieth century, electric propulsion was considered the technology of the future. Now, the future has arrived. This important new book explains the fundamentals of electric propulsion for spacecraft and describes in detail the physics and characteristics of the two major electric thrusters in use today, ion and Hall thrusters. The authors provide an introduction to plasma physics in order to allow readers to understand the models and derivations used in determining electric thruster performance. They then go on to present detailed explanations of: Thruster principles Ion thruster plasma generators and accelerator grids Hollow cathodes Hall thrusters Ion and Hall thruster plumes Flight ion and Hall thrusters Based largely on research and development performed at the Jet Propulsion Laboratory (JPL) and complemented with scores of tables, figures, homework problems, and references, Fundamentals of Electric Propulsion: Ion and Hall Thrusters is an indispensable textbook for advanced undergraduate and graduate students who are preparing to enter the aerospace industry. It also serves as an equally valuable resource for professional engineers already at work in the field.

Facing the Heat Barrier

Facing the Heat Barrier PDF Author: T.A. Heppenheimer
Publisher: Courier Dover Publications
ISBN: 0486834514
Category : Technology & Engineering
Languages : en
Pages : 355

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Book Description
This volume from The NASA History Series presents an overview of the science of hypersonics, the study of flight at speeds at which the physics of flows is dominated by aerodynamic heating. The survey begins during the years immediately following World War II, with the first steps in hypersonic research: the development of missile nose cones and the X-15; the earliest concepts of hypersonic propulsion; and the origin of the scramjet engine. Next, it addresses the re-entry problem, which came to the forefront during the mid-1950s, showing how work in this area supported the manned space program and contributed to the development of the orbital shuttle. Subsequent chapters explore the fading of scramjet studies and the rise of the National Aerospace Plane (NASP) program of 1985–95, which sought to lay groundwork for single-stage vehicles. The program's ultimate shortcomings — in terms of aerodynamics, propulsion, and materials — are discussed, and the book concludes with a look at hypersonics in the post-NASP era, including the development of the X-33 and X-34 launch vehicles, further uses for scramjets, and advances in fluid mechanics. Clearly, ongoing research in hypersonics has yet to reach its full potential, and readers with an interest in aeronautics and astronautics will find this book a fascinating exploration of the field's history and future.

DDT

DDT PDF Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : DDT (Insecticide)
Languages : en
Pages : 316

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Book Description


Martin's Hundred

Martin's Hundred PDF Author: Ivor Noël Hume
Publisher: Doubleday Books
ISBN: 9780385292818
Category : History
Languages : en
Pages : 372

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Medical and Veterinary Entomology

Medical and Veterinary Entomology PDF Author: Gary R. Mullen
Publisher: Academic Press
ISBN: 0080919693
Category : Science
Languages : en
Pages : 646

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Book Description
Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout

Materials Research and Standards

Materials Research and Standards PDF Author:
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 1052

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Through Three Centuries

Through Three Centuries PDF Author: Jesse Leonard Rosenberger
Publisher:
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 466

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Book Description
Charles Kendrick Colver was born 22 May 1821 in Clarendon, Vermont, the son of Dr. Nathaniel and Sally Clark Colver. He married Esther B. B. Hill, daughter of Samuel Hill of South Boston. Her life ended prematurely through an illness on 15 September 1855. He married secondly, Susanna Champney Reed on 25 August 1858 in South Abington, Massachusetts. He was then serving as pastor of the High Street Baptist Church of Charlestown, Massachusetts. Rev. Colver pastored churches in Massachusetts, Michigan, Illinois and Wisconsin. He died 28 October 1896 in Chicago, Illinois. His second wife, Susanna, died 12 September 1889 also in Chicago.