Results 361 to 370 of about 6,249,267 (409)
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2006
The need for high temperature, oxidation-resistant materials has driven research into oxide-oxide composites. These materials require a crack deflecting mechanism to prevent brittle failure; both interface coatings and porous matrices have proven successful in providing this function.
Kristin A. Keller +2 more
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The need for high temperature, oxidation-resistant materials has driven research into oxide-oxide composites. These materials require a crack deflecting mechanism to prevent brittle failure; both interface coatings and porous matrices have proven successful in providing this function.
Kristin A. Keller +2 more
openaire +2 more sources
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, 1999
Recent advances in COI’s oxide-oxide CMC materials will be presented including basic processing steps, updated material properties, and fabrication techniques. Material properties of COI’s alumino-silicate system reinforced with various oxide fabrics will be compared, along with progress in developing a 1200°C oxide matrix system for future turbine ...
Robert A. Jurf, Steven C. Butner
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Recent advances in COI’s oxide-oxide CMC materials will be presented including basic processing steps, updated material properties, and fabrication techniques. Material properties of COI’s alumino-silicate system reinforced with various oxide fabrics will be compared, along with progress in developing a 1200°C oxide matrix system for future turbine ...
Robert A. Jurf, Steven C. Butner
openaire +3 more sources
Oxidation and oxidation protection
1993Over the past decade the development of structural carbon-carbon materials has received a great deal of attention. Potential uses have been cited in future generation military aircraft, missile systems and a number of proposed hypersonic aerospace vehicles.
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Modelling oxide–oxide and oxide–metal interfaces
J. Chem. Soc., Faraday Trans., 1990Recent years have seen a large increase in interest in interfaces of ionic and ceramic crystals and an appreciation of their importance in determining many of the properties of materials. Static-lattice calculations have made a major impact on the interpretation of the role of point defects in controlling observed behaviour in the bulk and are now ...
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Journal of the American Chemical Society, 2015
Nickel-iron oxides/hydroxides are among the most active electrocatalysts for the oxygen evolution reaction. In an effort to gain insight into the role of Fe in these catalysts, we have performed operando Mössbauer spectroscopic studies of a 3:1 Ni:Fe ...
Jamie Y. C. Chen +7 more
semanticscholar +1 more source
Nickel-iron oxides/hydroxides are among the most active electrocatalysts for the oxygen evolution reaction. In an effort to gain insight into the role of Fe in these catalysts, we have performed operando Mössbauer spectroscopic studies of a 3:1 Ni:Fe ...
Jamie Y. C. Chen +7 more
semanticscholar +1 more source
Mechanisms and Factors for Edible Oil Oxidation
, 2006: Edible oil is oxidized during processing and storage via autoxidation and photosensitized oxidation, in which triplet oxygen (3O2) and singlet oxygen (1O2) react with the oil, respectively.
E. Choe, D. Min
semanticscholar +1 more source
1993
Silicon dioxide has many desirable properties: an optical material of wide band gap known by many as the stable insulating oxide which helps silicon retain its supremacy in microelectronic devices. I shall discuss some of the recent studies increasing our understanding in three main areas: oxidation processes; interface issues; and processing and its ...
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Silicon dioxide has many desirable properties: an optical material of wide band gap known by many as the stable insulating oxide which helps silicon retain its supremacy in microelectronic devices. I shall discuss some of the recent studies increasing our understanding in three main areas: oxidation processes; interface issues; and processing and its ...
openaire +2 more sources
A quantitative demonstration of the grain boundary diffusion mechanism for the oxidation of metals
, 1982Below 1000°C the oxidation of nickel cannot be controlled by the diffusion of ions through the bulk crystal lattice of the pure oxide, because the measured oxidation rates are several orders of magnitude faster than would be predicted on this basis ...
A. Atkinson, R. I. Taylor, A. Hughes
semanticscholar +1 more source
Simplified Reaction Mechanisms for the Oxidation of Hydrocarbon Fuels in Flames
, 1981Simplified reaction mechanisms for the oxidation of hydrocarbon fuels have been examined using a numerical laminar flame model. The types of mechanisms studied include one and two global reaction steps as well as quasi-global mechanisms.
C. Westbrook, F. Dryer
semanticscholar +1 more source