Indentation Fracture and Mechanical Properties of Ceramic Fuels and Glasses PDF Download

Author: Commission of the European Communities
Publisher: CRC Press
ISBN: 9783718604432
Category : Technology & Engineering
Languages : en
Pages : 250

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 248

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Author: Michael E. Kassner
Publisher: Elsevier
ISBN: 0080532144
Category : Technology & Engineering
Languages : en
Pages : 289

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* Numerous line drawings with consistent format and units allow easy comparison of the behavior of a very wide range of materials * Transmission electron micrographs provide a direct insight in the basic microstructure of metals deforming at high temperatures * Extensive literature review of over 1000 references provide an excellent reference document, and a very balanced discussionUnderstanding the strength of materials at a range of temperatures is critically important to a huge number of researchers and practitioners from a wide range of fields and industry sectors including metallurgists, industrial designers, aerospace R&D personnel, and structural engineers. The most up-to date and comprehensive book in the field, Fundamentals of Creep in Metals and Alloys discusses the fundamentals of time-dependent plasticity or creep plasticity in metals, alloys and metallic compounds. This is the first book of its kind that provides broad coverage of a range of materials not just a sub-group such as metallic compounds, superalloys or crystals. As such it presents the most balanced view of creep for all materials scientists. The theory of all of these phenomena are extensively reviewed and analysed in view of an extensive bibliography that includes the most recent publications in the field. All sections of the book have undergone extensive peer review and therefore the reader can be sure they have access to the most up-to-date research, fully interrogated, from the world's leading investigators.· Numerous line drawings with consistent format and units allow easy comparison of the behavior of a very wide range of materials· Transmission electron micrographs provide a direct insight in the basic microstructure of metals deforming at high temperatures· Extensive literature review of over 1000 references provide an excellent reference document, and a very balanced discussion

Author: R. Viswanadham
Publisher: Springer Science & Business Media
ISBN: 1468443194
Category : Technology & Engineering
Languages : en
Pages : 990

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This volume contains the proceedings of the first International Conference on the Science of Hard Materials held in Moran, Wyoming, Aug. 23-28, 1981. The objective of the conference was to review and advance the state of knowledge of the basic physical and chemical properties of hard materials and show how these properties influence performance in a variety of applications. To this end, the 49 con tributed papers and the four keynote papers by Prof. Fischmeister and Drs. Hintermann, Exner and Almond, present an excellent overview of the state of the art in the "science" of hard materials. The contents of these proceedings also reflect the fact that hard metal technology is now well matured and several aspects of the behavior of these materials are well understood and firmly established. Structure-property relationships in this class of materials are currently well known. Pitfalls in some of the traditional test methods have been recognized and new test methods are being developed which discriminate between intrinsic material properties and flaw content and distribution. Application of fracture mechanics, al though a late corner to the hard materials area (as compared to other structural materials), is rapidly gaining acceptance and new fracture toughness test methods are being developed. Application of modern analysis and analytical techniques to these materials has begun and entirely new and unexpected information has been obtained. For a variety of reasons, "hard metals" have dominated the research and development scene of "hard materials".

Author: I.J. McColm
Publisher: Springer Science & Business Media
ISBN: 1475747322
Category : Technology & Engineering
Languages : en
Pages : 331

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As the utilization of ceramic materials is developing at a great pace, so too is the science of ceramics improving the understanding we have about these high-technology materials. New and improved ways of examining and investigating monolithic ceramics and ceramic composites are also being developed and reported at a great pace in a wide-ranging area of the scientific and technical literature. This book has been written with the aim of increas ing the awareness of the general materials worker of developments in modern ceramics and of bringing to a focus how much the study of their hardness can contribute to our understanding of them and lead to technical data that can be of considerable use in this fast-growing field. The readership will consist of materials scientists, metallurgists, and engineers moving into the new worlds of advanced ceramics and ceramic-containing composites. Detailed works on hardness are to be found in the metallurgical area, where much of the theory and early applications were developed. This book does not overly stress this early development of theory and practice, but concentrates wherever possible on the ceramics and glasses. Thus Chapter 1 introduces the general subject area to those whose interest may have been blunted in the past by the emphasis on one area of materials. Subjects raised in the first chapter are developed more fully in later chapters.

Author:
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 1076

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Author: R.C. Bradt
Publisher: Springer Science & Business Media
ISBN: 1489914412
Category : Science
Languages : en
Pages : 661

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This proceedings volume, "Plastic Deformation of Ceramics," constitutes the papers of an international symposium held at Snowbird, Utah from August 7-12, 1994. It was attended by nearly 100 scientists and engineers from more than a dozen countries representing academia, national laboratories, and industry. Two previous conferences on this topic were held at The Pennsylvania State University in 1974 and 1983. Therefore, the last major international conference focusing on the deformation of ceramic materials was held more than a decade ago. Since the early 1980s, ceramic materials have progressed through an evolutionary period of development and advancement. They are now under consideration for applications in engineering structures. The contents of the previous conferences indicate that considerable effort was directed towards a basic understanding of deformation processes in covalently bonded or simple oxide ceramics. However, now, more than a decade later, the focus has completely shifted. In particular, the drive for more efficient heat engines has resulted in the development of silicon-based ceramics and composite ceramics. The discovery of high-temperature cupric oxide-based superconductors has created a plethora of interesting perovskite-Iike structured ceramics. Additionally, nanophase ceramics, ceramic thin films, and various forms of toughened ceramics have potential applications and, hence, their deformation has been investigated. Finally, new and exciting areas of research have attracted interest since 1983, including fatigue, nanoindentation techniques, and superplasticity.

Author: Bharat Bhushan
Publisher: Springer Science & Business Media
ISBN: 9401150508
Category : Science
Languages : en
Pages : 652

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Micro Electro Mechanical Systems (MEMS) is already about a billion dollars a year industry and is growing rapidly. So far major emphasis has been placed on the fabrication processes for various devices. There are serious issues related to tribology, mechanics, surfacechemistry and materials science in the operationand manufacturingof many MEMS devices and these issues are preventing an even faster commercialization. Very little is understood about tribology and mechanical properties on micro- to nanoscales of the materials used in the construction of MEMS devices. The MEMS community needs to be exposed to the state-of-the-artoftribology and vice versa. Fundamental understanding of friction/stiction, wear and the role of surface contamination and environmental debris in micro devices is required. There are significantadhesion, friction and wear issues in manufacturing and actual use, facing the MEMS industry. Very little is understood about the tribology of bulk silicon and polysilicon films used in the construction ofthese microdevices. These issues are based on surface phenomenaand cannotbe scaled down linearly and these become increasingly important with the small size of the devices. Continuum theory breaks down in the analyses, e. g. in fluid flow of micro-scale devices. Mechanical properties ofpolysilicon and other films are not well characterized. Roughness optimization can help in tribological improvements. Monolayers of lubricants and other materials need to be developed for ultra-low friction and near zero wear. Hard coatings and ion implantation techniques hold promise.

Author: A.C.F. Cocks
Publisher: Springer Science & Business Media
ISBN: 9400911173
Category : Technology & Engineering
Languages : en
Pages : 318

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Failure of components which operate in the creep range can result either from the growth of a dominant crack or through the accumulation of 'damage' in the material. Conventional and nuclear power generating plant are generally designed on the basis of continuum failure, with assessment routes providing an indication of the effects of flaws on component performance. Another example where an understanding of creep failure is important is in the design of offshore structures which operate in arctic waters. These structures can be subjected to quite considerable forces by wind-driven ice sheets, which are limited by failure of the ice sheet. Design codes are currently being developed which identify the different mechanisms of failure, ranging from continuum crushing to radial cracking and buckling of the ice sheet. Our final example concerns engineering ceramics, which are currently being considered for use in a wide range of high-temperature applications. A major problem preventing an early adoption of these materials is their brittle response at high stresses, although they can behave in a ductile manner at lower stresses. In each of the above situations an understanding of the processes of fast fracture, creep crack growth and continuum failure is required, and in particular an understanding of the material and structural features that influence the transition from brittle to ductile behaviour. The translation of this information to component design is most advanced for metallic components.

Author:
Publisher: Springer Science & Business Media
ISBN: 9400919689
Category : Technology & Engineering
Languages : en
Pages : 345

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19th Canadian Fracture Conference, Ottawa, Ontario, May 29-31, 1989