Download or read book Fibering of Oxides in a Refractory metal Matrices written by Robert W. Jech and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fibering of Oxides in Refractory metal Matrices written by Robert W. Jech and published by . This book was released on 1967 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fibering of Oxides in Refractory Metals written by R. W. Jech and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the fibering of oxides by hot deformation in metal matrices was carried out using unalloyed columbium or tantalum as the matrix material and thorium oxide, zirconium oxide, magnesium oxide, or aluminum oxide. Composites were prepared by conventional powder metallurgical techniques and extrusion. The composites were examined for microstructures and fiber length-to-diameter ratio and tested in tension at room temperature and 1100, 2200, 2500, 2750, and 3000 F. Stress-rupture tests were conducted on the composites at 2200 and 2500 F for times up to 1000 hr. It was found that the oxides could be plastically deformed into fibers at temperatures well below their melting points when mechanically worked in a ductile matrix. Composites produced in this way exhibited improved tensile strengths and ratios of tensile strength to density as well as improved stress-rupture strength when compared to additive-free matrix materials and compared favorably with some commercial alloys.
Download or read book Fiber reinforced Metal matrix Composites 1967 written by K. R. Hanby and published by . This book was released on 1968 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report is intended to update DMIC Report 241, which describes research on fiber-reinforced metal-matrix composites for the period 1964-1966. A two page summary outlines the current state-of-the-art of these composites, and is followed by a discussion of 1967 research on the composites, arranged according to matrix- and fiber-materials. The bulk of the report consists of summaries of 1967 research programs, arranged by programs. (Author).
Download or read book Fiber reinforced Metal matrix Composites 1969 1970 written by Kenneth Roger Hanby and published by . This book was released on 1971 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxide Based Fiber Reinforced Ceramic Matrix Composites written by Bilge Saruhan and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of Oxide-Based Fiber-Reinforced Ceramic-Matrix Composites is to provide comprehensive information on the most recent successful findings. The book consists of six chapters which characterize the current state of the art concerning oxide-based fiber-reinforced composites. Chapter one provides an introduction, examples of application areas and background information. Chapter two deals with the primary material properties for the areas of application and lists the possible constituent parts of the composites, depending on particular demands. Chapter three explains both the past and present fabrication methods which can affect the performance of the composites. Chapter four defines the interphase-related phenomena and describes the mechanical characteristics of the oxide-based fiber-reinforced composite, produced with different interphases. Chapter five deals with the fabrication route, functionality and mechanical characterization of the porous-matrix composites. The last chapter summarizes the present achievements and identifies requirements for reaching the goal, thereby providing a promising course for future research.
Download or read book NASA Technical Note written by and published by . This book was released on 1970 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxide Deformation and Fiber Reinforcement in a Tungsten Metal oxide Composite written by Charles P. Blankenship and published by . This book was released on 1968 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Refractory oxide particles of urania (UO2) and zirconia (ZrO2) were added to a tungsten matrix and elongated into fibers by hot extrusion. Extrusion temperatures ranged from 3200 degrees to 4000 degrees F (1760 degrees to 2200 degrees C). The geometry of the oxide fibers appeared to be closest to that of an ellipsoid with the major axis alined in the extrusion direction. Oxide fibering was measured by an average length-to-width ratio of the fibers sectioned parallel to the major axis. the extent of oxide deformation was estimated in terms of strain components. Oxide-matrix deformation characteristics were related to the extrusion parameters by comparing the estimated oxide strain components to those of the composite. In terms of fibering, the greatest oxide elongation average length to width ratio = 200, was obtained in tungsten-UO2 composites extruded at 3600 degrees F (1980 degrees C) with a composite reduction of 18 to 1. values of average length to width ratio for tungsten-UO2 composites extruded at 3200 degrees and 4000 degrees F (1760 and 2200 degrees C) were nearly equal (average length to width ration =100) even though the composite reductions were 12 to 1 and 18 to 1, respectively. For a tungsten-ZrO2 composite extruded at 4000 degrees F (2200 degrees C), average length to width ratio =160. These length-to-width ratio values have no direct relation to the length-to-diameter ratio commonly used to describe fibered composites containing cylindrical fibers.
Download or read book Characterization of Carbon Nanotube Based Composites under Consideration of Defects written by Moones Rahmandoust and published by Springer. This book was released on 2015-10-14 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the characterization methods involved with carbon nanotubes and carbon nanotube-based composites, with a more detailed look at computational mechanics approaches, namely the finite element method. Special emphasis is placed on studies that consider the extent to which imperfections in the structure of the nanomaterials affect their mechanical properties. These defects may include random distribution of fibers in the composite structure, as well as atom vacancies, perturbation and doping in the structure of individual carbon nanotubes.
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 1968 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of 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 1968 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Materials Science and Engineering written by William D. Callister and published by John Wiley & Sons. This book was released on 2022 with total page 995 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Materials Science and Engineering provides a comprehensive coverage of the three primary types of materials (metals, ceramics, and polymers) and composites. Adopting an integrated approach to the sequence of topics, the book focuses on the relationships that exist between the structural elements of materials and their properties. This presentation permits the early introduction of non-metals and supports the engineer's role in choosing materials based upon their characteristics. Using clear, concise terminology that is familiar to students, the book presents material at an appropriate level for student comprehension. This International Adaptation has been thoroughly updated to use SI units. This edition enhances the coverage of failure mechanism by adding new sections on Griffith theory of brittle fracture, Goodman diagram, and fatigue crack propagation rate. It further strengthens the coverage by including new sections on peritectoid and monotectic reactions, spinodal decomposition, and various hardening processes such as surface, and vacuum and plasma hardening. In addition, all homework problems requiring computations have been refreshed.
Download or read book Materials Science and Engineering written by William D. Callister, Jr. and published by John Wiley & Sons. This book was released on 2020-06-23 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Science and Engineering: An Introduction promotes student understanding of the three primary types of materials (metals, ceramics, and polymers) and composites, as well as the relationships that exist between the structural elements of materials and their properties. The 10th edition provides new or updated coverage on a number of topics, including: the Materials Paradigm and Materials Selection Charts, 3D printing and additive manufacturing, biomaterials, recycling issues and the Hall effect.
Download or read book Fiber strengthened Metallic Composites written by and published by . This book was released on 1967 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Materials Science and Engineering written by William D. Callister, Jr. and published by John Wiley & Sons. This book was released on 2012 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This text treats the important properties of the three primary types of materials--metals, ceramics, and polymers--as well as composites, and the relationships that exist between the structural elements of these materials and their properties. Emphasis is placed on mechanical behavior and failure including, techniques that are employed to improve the mechanical and failure characteristics in terms of alteration of structural elements. Furthermore, individual chapters discuss each of corrosion, electrical, thermal, magnetic, and optical properties. New and cutting-edge materials are also discussed. Even if an instructor does not have a strong materials background (i.e., is from mechanical, civil, chemical, or electrical engineering, or chemistry departments), he or she can easily teach from this text. The material is not at a level beyond which the students can comprehend--an instructor would not have to supplement in order to bring the students up to the level of the text. Also, the author has attempted to write in a concise, clear, and organized manner, using terminology that is familiar to the students. Extensive student and instructor resource supplements are also provided."--Publisher's description.
Download or read book Fiber strengthened Metallic Composites written by and published by ASTM International. This book was released on 1967 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
