Processing Of Silicon Nitride Ceramics For Improved High Temperature Performance
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Processing Of Silicon Nitride Ceramics For Improved High Temperature Performance
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Author : Michael Klaus Cinibulk
language : en
Publisher:
Release Date : 1989
Processing Of Silicon Nitride Ceramics For Improved High Temperature Performance written by Michael Klaus Cinibulk and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Ceramics For High Performance Applications Iii
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Author : E.M. Lenoe
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-21
Ceramics For High Performance Applications Iii written by E.M. Lenoe and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-21 with Technology & Engineering categories.
The Sixth Army Materials Technology Conference, IICeramics for High Performance Applications-II I-Reliabilityll , was co-sponsored by the Army Materials and Mechanics Research Center and the U. S. Department of Energy, Office of Transportation Programs . The program highlighted all issues relevant to the reliability of ceramics in advanced systems. The conference emphasized programmatic reviews of the major efforts on ceramic gas turbine technology, on an international basis. The conference showed how ceramic design, materials development, materials processing, NDE, and component systems testing are being integrated and iterated in specific engine development programs . Further , the conference promoted inter change among the various technical disciplines working in the advanced turbine and heat engine areas. This volume will join its earlier companions, Ceramics for High Performance A lications (1974), and Ceramics for High Performance Applications-II 1 7 ,in chronicling the rapid progress being made in the applicaton of ceramics to the very demanding service environ ment of gas turbine and piston engines. At the last meeting of this series at Newport, R t, in March 1977, successful high temperature tests of ceramic components in test rigs were described.
Development Of Improved Processing And Evaluation Methods For High Reliability Structural Ceramics For Advanced Heat Engine Applications Phase 1 Final Report
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Author :
language : en
Publisher:
Release Date : 1993
Development Of Improved Processing And Evaluation Methods For High Reliability Structural Ceramics For Advanced Heat Engine Applications Phase 1 Final Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
The program goals were to develop and demonstrate significant improvements in processing methods, process controls and non-destructive evaluation (NDE) which can be commercially implemented to produce high reliability silicon nitride components for advanced heat engine applications at temperatures to 1,370°C. The program focused on a Si3N4-4% Y2O3 high temperature ceramic composition and hot-isostatic-pressing as the method of densification. Stage I had as major objectives: (1) comparing injection molding and colloidal consolidation process routes, and selecting one route for subsequent optimization, (2) comparing the performance of water milled and alcohol milled powder and selecting one on the basis of performance data, and (3) adapting several NDE methods to the needs of ceramic processing. The NDE methods considered were microfocus X-ray radiography, computed tomography, ultrasonics, NMR imaging, NMR spectroscopy, fluorescent liquid dye penetrant and X-ray diffraction residual stress analysis. The colloidal consolidation process route was selected and approved as the forming technique for the remainder of the program. The material produced by the final Stage II optimized process has been given the designation NCX 5102 silicon nitride. According to plan, a large number of specimens were produced and tested during Stage III to establish a statistically robust room temperature tensile strength database for this material. Highlights of the Stage III process demonstration and resultant database are included in the main text of the report, along with a synopsis of the NCX-5102 aqueous based colloidal process. The R and D accomplishments for Stage I are discussed in Appendices 1--4, while the tensile strength-fractography database for the Stage III NCX-5102 process demonstration is provided in Appendix 5. 4 refs., 108 figs., 23 tabs.
Silicon Nitride
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Author : Emiliano Jose Hierra
language : en
Publisher: Nova Science Publishers
Release Date : 2012
Silicon Nitride written by Emiliano Jose Hierra and has been published by Nova Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Silicon nitride categories.
Silicon nitride (Si3N4) ceramic is used in numerous applications because of its superior properties, such as high-temperature strength, good oxidation resistance and low thermal expansion coefficient. In this book, the authors present current research in the study of the synthesis, properties and applications of silicon nitride. Topics include the optical and vibration properties of silicon rich nitride; high temperature oxidation of silicon nitride based ceramics; low temperature preparation of phosphate bonded silicon nitride ceramics with high mechanical strength; the SPS-sintering process and use of ceramics for high-temperature engineering applications; synthesis and properties of silicon nitride coatings; and the use of silicon nitride as biomaterial.
Designing With Structural Ceramics
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Author : R.W. Davidge
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Designing With Structural Ceramics written by R.W. Davidge and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
The last 30 years have seen a steady development in the range of ceramic materials with potential for high temperature engineering applications: in the 60s, self-bonded silicon carbide and reaction-bonded silicon nitride; in the 70s, improved aluminas, sintered silicon carbide and silicon nitrides (including sialons); in the 80s, various toughened Zr0 materials, ceramic matrix composites reinforced with silicon 2 carbide continuous fibres or whiskers. Design methodologies were evolved in the 70s, incorporating the principles of fracture mechanics and the statistical variation and time dependence of strength. These have been used successfully to predict the engineering behaviour of ceramics in the lower range of temperature. In spite of the above, and the underlying thermodynamic arguments for operations at higher temperatures, there has been a disappointing uptake of these materials in industry for high temperature usc. Most of the successful applications are for low to moderate temperatures such as seals and bearings, and metal cutting and shaping. The reasons have been very well documented and include: • Poor predictability and reliability at high temperature. • High costs relative to competing materials. • Variable reproducibility of manufacturing processes. • Lack of sufficiently sensitive non-destructive techniques. With this as background, a Europhysics Industrial Workshop sponsored by the European Physical Society (EPS) was organised by the Netherlands Energy Research Foundation (ECN) and the Institute for Advanced Materials of the Joint Research Centre (JRC) of the EC, at Petten, North Holland, in April 1990 to consider the status of thermomechanical applications of engineering ceramics.
Tailoring Of Mechanical Properties Of Si3n4 Ceramics
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Author : Michael J. Hoffmann
language : en
Publisher: Springer
Release Date : 1994-10-31
Tailoring Of Mechanical Properties Of Si3n4 Ceramics written by Michael J. Hoffmann and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-10-31 with Science categories.
New analytical methods and high resolution transmission electron microscopy coupled with phase equilibria studies offer the possibility of tailoring the microstructure of silicon nitride ceramics for specific applications. Covering all recent research activities on silicon nitride ceramics, 32 papers from the October 1993 workshop and a conference that directly preceded the workshop discuss processing and densification; microstructure--development, characterization, and influence on mechanical properties; phase diagrams and silicon nitride composites; grain boundary phases; high temperature properties; and mechanical performance and applications. Annotation copyright by Book News, Inc., Portland, OR
Engineering Ceramics 96 Higher Reliability Through Processing
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Author : G.N. Babini
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Engineering Ceramics 96 Higher Reliability Through Processing written by G.N. Babini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Despite the significant progress, which has been made in developing of ceramic materials desired for engineering applications, their mass production is still not on expected level. Among the key factors hindering higher exploitation of these materials the problems in processing were identified. The processing comprises powder production, mixing techniques, forming, and sintering. All of them are equally important and all of them can introduce defects into the material. Besides improvement in processing, the properties of ceramic materials can be considerably improved by the creation of composites. Composites formed at micro or macro level are able to form more flaw-tolerant material. Considerable research activities, working on above mentioned phenomena are in progress at industrial laboratories as well as other research centres. This volume presents the contributions to the Advanced Research Workshop "Engineering Ceramics '96" with 65 participants from 21 countries held on 12th - 15th May 1996 at Smolenice Castle, Slovakia, the conference site of Slovak Academy of Sciences. The book covers research activities on engineering ceramic materials and gives an overview with respect to recent developments.
High Temperature Structural Materials
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Author : Robert Cahn
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
High Temperature Structural Materials written by Robert Cahn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Conventional materials, such as nickel based alloys, will not be able to match the required performance specifications for the future generation of high temperature materials. This book reviews the characteristics and potential of a wide range of candidate superalloy replacements, such as ceramics, intermetallics, and their composites. Particular attention is devoted to the problems of processing and design with these materials.
Mechanical Properties And Performance Of Engineering Ceramics And Composites Iii Volume 28 Issue 2
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Author : Edgar Lara-Curzio
language : en
Publisher: John Wiley & Sons
Release Date : 2007-11-12
Mechanical Properties And Performance Of Engineering Ceramics And Composites Iii Volume 28 Issue 2 written by Edgar Lara-Curzio and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-11-12 with Technology & Engineering categories.
Papers from The American Ceramic Society's 31st International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 21-26, 2007. Content includes fundamental links among processing, microstructure, properties and performance of ceramics and composites, and how these change as a function of time, temperature and environment. Reviews progress on ternary compounds, ultra-high temperature ceramics, innovative processing techniques to achieve multifunctional properties and materials for power generation and nuclear energy applications.
High Performance Non Oxide Ceramics Ii
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Author : M. Jansen
language : en
Publisher: Springer
Release Date : 2003-08-25
High Performance Non Oxide Ceramics Ii written by M. Jansen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-08-25 with Science categories.
The nitrides and carbides of boron and silicon are proving to be an excellent choice when selecting materials for the design of devices that are to be employed under particularly demanding environmental and thermal con- tions. The high degree of cross-linking, due to the preferred coordination numbers of the predominantly covalently bonded constituents equalling or exceeding three, lends these non-oxidic ceramics a high kinetic stability, and is regarded as the microscopic origin of their impressive thermal and mechanical durability. Thus it does not come as a surprise that the chemistry, the physical properties and the engineering of the corresponding binary, ternary, and even quaternary compounds have been the subject of intensive and sustained efforts in research and development. In the five reviews presented in the volumes 101 and 102 of "Structure and Bonding" an attempt has been made to cover both the essential and the most recent advances achieved in this particular field of materials research. The scope of the individual contributions is such as to address both graduate students, specializing in ceramic materials, and all scientists in academia or industry dealing with materials research and development. Each review provides, in its introductory part, the chemical, physical and, to some extent, historical background of the respective material, and then focuses on the most relevant and the most recent achievements.