Ceramic Materials And Components For Engines - Proceedings Of The 5th International Symposium


Book Description

The 5th of a prestigious series of conferences, these proceedings are devoted to the latest achievements in ceramic materials and components for engines. Their purpose is to advance structural ceramics and ceramic engine technology on a worldwide scale and provide a state-of-the-art survey of this increasingly important field. The papers presented cover many aspects from basic research and development to production, properties and applications. These proceedings will be of interest to ceramists and mechanical engineers concerned with the potential use of ceramic components in engines.










2nd European Symposium on Engineering Ceramics


Book Description

This volume contains the proceedings of the 2nd European Symposium on Engineering Ceramics held in London, 23-24 November 1987. The meeting was attended by almost 200 scientists and engineers, primarily drawn from industry, and the Sessions were chaired by Mr Eric Briscoe, past President of the Institute of Ceramics. Very effective symposium organisation was provided by IBC Technical Services Ltd. The engineering ceramics are a class of materials which has over some 50 years found well-established applications based on the materials' chemical stability and wear resistance. The last 20 years have seen intensified efforts to extend applications for these materials into areas traditionally occupied by metals, but in which the typical metallic weaknesses of wear, and of high temperature creep and oxidation, are now creating significant problems. These efforts have, however, in many cases been undermined on the one hand by the inherent ceramic weaknesses of brittleness and flaw sensitivity, and on the other by an inadequate understanding, and control, of the basic ceramic fabrication processes required for the low-cost mass production of relatively complex components. The positive results of the efforts of the last 20 years have been the development of a large new group of ceramic materials believed to possess intrinsic mechanical property advantages, of which the transformation toughened zirconias, and the ceramic matrix composites are good examples, together with improved powder production methods and powder shaping processes.







Non-Oxide Technical and Engineering Ceramics


Book Description

Conferences on technical and engineering ceramics are held with increasing frequency, having become fashionable because the potential of ceramics in profitable growth industries is an urgent matter of considerable debate and discussion. Japanese predictions are that the market value of ceramics will grow 10 at about 10% per annum to reach at least $10 by the end of the century. Seventy per cent of this market will be in electroceramics, applications for which include insulating substrates in integrated circuits, ferroelectric capacitors, piezoelectric oscillators and transdu cers, ferrite magnets, and ion-conducting solid electrolytes and sen sors. All these are oxides, and so are excluded by the title of the Limerick Conference. Why 'Non-oxide'? The other major ceramics potential is in struc tural engineering components and engine applications. Here, the greatest impetus to research and development has been the attempt to produce a ceramic gas turbine. Heat engines become more efficient as their working temperature increases, but nickel-base superalloy en gines have about reached their limit. Compared with metals, ceramics have higher strengths at high temperatures, better oxidation and corrosion resistance, and are also less dense. In general, ceramics have better properties above about 1000°C except in one respect-their inherent brittleness. The work of fracture is therefore much smaller than for metals and so the permitted flaw size is also smaller.




Fracture Mechanics


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Structural Ceramics


Book Description

Treatise on Materials Science and Technology, Volume 29: Structural Ceramics presents an overview of structural ceramics. This book begins with a survey of potential uses, designs, and barriers of particular types of structural ceramics. The silicon carbide family, silicon nitride and sialon family, and transformation toughened ceramics are discussed in detail, followed by an analysis of the various processing routes of each family of structural ceramics. This publication concludes with a review of the tribology of structural ceramics, considering many applications for structural ceramics in heat engines and other machinery that involve moving parts which must often resist wear or erosion. This volume is recommended for engineers, scientists, and researchers concerned with structural ceramics.




NBS Special Publication


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