High Temperature Oxidation Protection Of Tungsten
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High-temperature Oxidation-resistant Coatings
Author | : National Research Council (U.S.). Committee on Coatings |
Publisher | : National Academies |
Total Pages | : 236 |
Release | : 1970-01-01 |
Genre | : Technology & Engineering |
ISBN | : |
Oxidation of Tungsten
Author | : Vincent David Barth |
Publisher | : |
Total Pages | : 192 |
Release | : 1961 |
Genre | : Tungsten |
ISBN | : |
The report presents a detailed review of available information on the oxidation of W and its alloys. W is relatively inert below 700 C. As the temperature is increased above this level, however, oxidation becomes progressively more rapid, reaching catastrophic rates at temperatures around 1200 C and above. Various theories for the mechanism and rates of W oxidation at different temperatures are reviewed, and the effect of pressure and water vapor on the stability of W oxides is discussed in detail. The elevatedtemperature reactions of W with other materials, such as refractory oxides, and with gases other than oxygen also are covered. Information on the protection of W by alloying and coating is included. (Author).
High Temperature Coatings
Author | : Sudhangshu Bose |
Publisher | : Butterworth-Heinemann |
Total Pages | : 418 |
Release | : 2017-11-27 |
Genre | : Technology & Engineering |
ISBN | : 0128047437 |
High Temperature Coatings, Second Edition, demonstrates how to counteract the thermal effects of rapid corrosion and degradation of exposed materials and equipment that can occur under high operating temperatures. This is the first true practical guide on the use of thermally protective coatings for high-temperature applications, including the latest developments in materials used for protective coatings. It covers the make-up and behavior of such materials under thermal stress and the methods used for applying them to specific types of substrates, as well as invaluable advice on inspection and repair of existing thermal coatings. With his long experience in the aerospace gas turbine industry, the author has compiled the very latest in coating materials and coating technologies, as well as hard-to-find guidance on maintaining and repairing thermal coatings, including appropriate inspection protocols. The book is supplemented with the latest reference information and additional support to help readers find more application- and industry-type coatings specifications and uses. - Offers an overview of the underlying fundamental concepts of thermally-protective coatings, including thermodynamics, energy kinetics, crystallography and equilibrium phases - Covers essential chemistry and physics of underlying substrates, including steels, nickel-iron alloys, nickel-cobalt alloys and titanium alloys - Provides detailed guidance on a wide variety of coating types, including those used against high temperature corrosion and oxidative degradation and thermal barrier coatings
Coatings for High-Temperature Structural Materials
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 102 |
Release | : 1996-05-13 |
Genre | : Technology & Engineering |
ISBN | : 0309176026 |
This book assesses the state of the art of coatings materials and processes for gas-turbine blades and vanes, determines potential applications of coatings in high-temperature environments, identifies needs for improved coatings in terms of performance enhancements, design considerations, and fabrication processes, assesses durability of advanced coating systems in expected service environments, and discusses the required inspection, repair, and maintenance methods. The promising areas for research and development of materials and processes for improved coating systems and the approaches to increased coating standardization are identified, with an emphasis on materials and processes with the potential for improved performance, quality, reproducibility, or manufacturing cost reduction.
A Selected Listing of NASA Scientific and Technical Reports for ...
Author | : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division |
Publisher | : |
Total Pages | : 2088 |
Release | : 1966 |
Genre | : Aeronautics |
ISBN | : |
Coatings of High - Temperature Materials
Author | : H. H. Hausner |
Publisher | : Springer |
Total Pages | : 294 |
Release | : 2013-11-11 |
Genre | : Technology & Engineering |
ISBN | : 1475712847 |
The properties of materials depend on the characteristics of the bulk and on those of the surf ace. Any change in surface characteristics affects a wide variety of material properties. During the last few years the role of surface phenomena in metallurgy has been the subject of many studies. Surface energy, surface tension, the activity of surfaces, and related problems are under discussion in the western world * as well as in the eastern world. t The relation between volume and surface properties in metals and alloys has been investigated and is still under investigation. Materials are frequently exposed to environments which change their physical and chemical characteristics on account of a reaction going on between the material surface and the environment. The science and technology of surface preparation ro improve material properties have gained importance during the last decade in many parts of the world. Main efforts have been concentrated especially on the coating of material surfaces in connection with the exposure of these materials to space en vironment.