Academic literature on the topic 'High temperature oxidation'

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Journal articles on the topic "High temperature oxidation"

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WANG, RUZHUAN, WEIGUO LI, and DAINING FANG. "A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION." International Journal of Applied Mechanics 05, no. 03 (September 2013): 1350026. http://dx.doi.org/10.1142/s1758825113500269.

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At high temperatures above 1650°C, the SiC -depleted layer of ultra-high-temperature ceramics which has high porosity appears during the oxidation process. In this present paper, based on the studies of the oxidative mechanisms and the fracture mechanisms of ultra-high-temperature ceramics under normal and high temperatures, a thermo-damage strength model for the SiC -depleted layer on high temperature oxidation was proposed. Using the model, the phase transformation, microstructure development and fracture performance in the SiC -depleted layer on high temperature oxidation were studied in detail. The study showed that the porosity is mainly related to the oxidation of SiC . And while the SiC is substantially completely oxidized, only a very small part of matrix is oxidized. The fracture strength of the SiC -depleted layer degrades seriously during the high temperature oxidation process. And the bigger the initial volume fraction of SiC , the lower the fracture strength of the SiC -depleted layer is. This layer may become the origin of failure of material, thus the further researches should be undertaken to improve the oxidation behavior for the ultra-high-temperature ceramics in a wider temperature range.
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Tuchida, K., K. Wathanyu, Chiraporn Auechalitanukul, and S. Surinphong. "High Temperature Performance of TiAlON Thin Films." Advanced Materials Research 622-623 (December 2012): 690–94. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.690.

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In this paper, the thermal oxidation behavior, adhesion and tribological properties of TiAlON films coated on hastelloyX substrate, typically used for fuel nozzle in gas turbine engine application, have been studied. The uncoated and coated samples were heated to different temperatures, i.e. 950, 1050 and 1150 °C in the controlled atmosphere. The surface appearance, microstructure, chemical composition and adhesion of films were investigated. The thermal oxidations were observed in all testing conditions showing thicker oxide film at higher temperature. However, spalling of oxide scales was found in hastelloyX and TiAlON coated at 1150°C suggesting the maximum working temperature of < 1150 °C. The critical loads corresponding to the full delamination of the thermal oxidation coated specimens were found to be higher than the non-thermal oxidation specimens. The effect of thermal oxidation on damage patterns during scratch tests, i.e. less chipping and cracking for thermal oxidation specimen, were also observed. The tribological properties were also investigated under different load under room temperature and 600 and 1000°C. The results suggested significant improvement in wear resistance of coated sample especially at low load at all temperatures.
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Yoshimura, Masahiro, Jun-ichiro Kase, and Shigeyuki Sōmiya. "Oxidation of SiC powder by high-temperature, high-pressure H2O." Journal of Materials Research 1, no. 1 (February 1986): 100–103. http://dx.doi.org/10.1557/jmr.1986.0100.

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The reaction between SiC powder and H2O has been studied at 400°–800 °C under 10 and 100 MPa. Silicon carbide reacted with H2O to yield amorphous SiO2 and CH4 by the reaction SiC + 2H2O→SiO2 + CH4 above 500 °C. Cristobalite and tridymite crystallized from amorphous silica after the almost complete oxidation of SiC above 700 °C. The oxidation rate, as calculated from the weight gain, increased with temperature and pressure. The Arrhenius plotting of the reaction rate based on a Jander-type model gave apparent activation energies of 167–194 kJ/mol. Contrasted with oxidation in oxidative atmosphere, oxidation in H2O is characterized by the diffusion of H2O and CH4 in an amorphous silica layer where the diffusion seemed to be rate determining. Present results suggest that the oxidation of SiC includes the diffusion process of H2O in silica layers when atmospheres contain water vapor.
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Wen, You-Hai. "High Temperature Oxidation Modeling." ECS Meeting Abstracts MA2020-02, no. 9 (November 23, 2020): 1173. http://dx.doi.org/10.1149/ma2020-0291173mtgabs.

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Warnatz, Jürgen. "Hydrocarbon oxidation high-temperature chemistry." Pure and Applied Chemistry 72, no. 11 (January 1, 2000): 2101–10. http://dx.doi.org/10.1351/pac200072112101.

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The exact knowledge of hydrocarbon oxidation kinetics is very important due to the fact that this process is involved in many technological processes: combustion in engines and furnaces, flame synthesis of materials, partial oxidation processes in chemical technology, catalytic combustion, and exhaust gas treatment, etc. An overview is given on the present state of the art with respect to kinetic data on gas-phase and (shortly) surface oxidation of hydrocarbons. Furthermore, some applications are described in the areas mentioned above. Examples for the importance of the gas-phase oxidation of hydrocarbons are ignition and combustion in engines and furnaces and partial oxidation processes in industrial chemical reactors. In many applications, both gas-phase and surface chemistry are taking place. Examples here are flame generation of diamonds and syngas generation.
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Coker, Eric N., Burl Donaldson, Walter Gill, Nadir Yilmaz, and Francisco M. Vigil. "The Isothermal Oxidation of High-Purity Aluminum at High Temperature." Applied Sciences 13, no. 1 (December 24, 2022): 229. http://dx.doi.org/10.3390/app13010229.

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The isothermal oxidation in air of high purity aluminum sheet was studied as a function of temperature using Thermogravimetric Analysis simultaneously with Differential Scanning Calorimetry (TGA/DSC). The rates and extents of oxidation were found to be non-linear functions of the temperature, in agreement with the literature. Between 650 °C and 750 °C very little oxidation took place; at 850 °C oxidation occurred after an induction period, while at 950 °C oxidation occurred without an induction period. At oxidation temperatures between 1050 °C and 1150 °C rapid passivation of the surface of the aluminum occurred, while at 1250 °C and above, an initial rapid mass increase was observed, followed by a more gradual increase in mass. The initial rapid increase in mass was accompanied by a significant exotherm, which was quantified by DSC. At temperatures of 1050 °C and above the specimen coalesced into a spheroidal particle, whereas at lower temperatures the original morphology was retained due to the cohesive strength of the native oxide layer. Cross-sections of oxidized specimens were characterized by scanning electron microscopy (SEM); the observed alumina skin thicknesses correlated qualitatively with the observed mass increases. Interrogation of the surface of an oxidized spheroidal particle by SEM showed a fractured alumina shell around a partially hollow core of aluminum which appeared to have grain boundaries.
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Ariharan, S., Manis Hazra, and Kantesh Balani. "High-temperature oxidation of graphite." Nanomaterials and Energy 7, no. 2 (December 2018): 37–43. http://dx.doi.org/10.1680/jnaen.18.00008.

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AMANO, Tadaaki, Masako SATO, Daisuke DOI, Masayuki HASHIMOTO, and Akira OKUBO. "High-temperature oxidation of Cr2S3." Journal of Advanced Science 11, no. 1 (1999): 26–27. http://dx.doi.org/10.2978/jsas.11.26.

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NARITA, Toshio. "High Temperature Oxidation and Coating." Journal of The Surface Finishing Society of Japan 64, no. 4 (2013): 229–34. http://dx.doi.org/10.4139/sfj.64.229.

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Belousov, Valerii V., and A. A. Klimashin. "High-temperature oxidation of copper." Russian Chemical Reviews 82, no. 3 (March 31, 2013): 273–88. http://dx.doi.org/10.1070/rc2013v082n03abeh004343.

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Dissertations / Theses on the topic "High temperature oxidation"

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Bellina, Paul J. "High-temperature oxidation of bulk RuAl alloy." Stuttgart Max-Planck-Inst. für Metallforschung, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?idn=980343135.

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Kim, Bae-Kyun. "High temperature oxidation of low carbon steel." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19519.

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The quality of steel may be seriously affected by the surface defects that appear on slab surfaces after hot rolling. These defects are related to iron oxidation and, in order to reduce the occurrence of these defects, it is necessary to better understand the formation of iron oxides during high temperature oxidation and the oxide descaling mechanisms. However, systematic research tools and experimental strategies for addressing these issues have not yet been developed. In addition, the mechanisms of oxide cracking and failure have not been understood. In this thesis, research tools and strategies are proposed for studying the high temperature oxidation of low carbon steels. These tools allow the presentation of new data on the phase composition of iron oxides at elevated temperature, characteristics of iron oxide formation, oxide microstructure and texture, oxide defects, and stress distributions in different oxide layers, as well as residual stresses. The microscopic model that was proposed for description of oxide failure allows better understanding of the mechanism for surface defect formation during hot rolling. To describe the dynamics of phase composition changes in textured oxides at elevated temperature, a new phase analysis method is proposed. This x-ray diffraction phase analysis is based on the Rietveld and Dickson's methods, and is used for investigating the effect of alloying elements on the oxidation process. This method was also adopted to track in-situ phase composition changes during high temperature oxidation of commercial low carbon steels. The structure of oxides on low carbon steels, pure iron, and Si-steels was systematically examined by orientation imaging microscopy (OIM). It is demonstrated that OIM can be an invaluable tool for visualizing the oxide microstructure texture and studies of oxide defects. In order to simulate industrial hot rolling of oxidized steel sheet, high temperature oxidations tests were made in the tube furnace up to 950°C, in air. The oxidation process and microstructure development were described using OIM maps including image quality (IQ) and inverse pole figure (IPF) maps. The three different iron oxides phases could be distinguished and the characteristics of oxides with different oxidation histories were compared. Iron oxides developed during high temperature oxidation consisted of wustite (FeO), magnetite (Fe304), and hematite (Fe20s) structures with varying texture, grain shape and size. In order to understand the mechanical properties of iron oxides, residual stresses in the three iron oxides phases were assessed using a specially designed x-ray stress measurement system. The stress distributions in the oxide layers were also simulated using finite element simulation of the hot rolling process.
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Arnold, Ramsey Paul. "Silicon carbide oxidation in high temperature steam." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76940.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 119-123).
The commercial nuclear power industry is continually looking for ways to improve reactor productivity and efficiency and to increase reactor safety. A concern that is closely regulated by the Nuclear Regulatory Commission is the exothermic zircaloy-steam oxidation reaction which can potentially occur during a loss of coolant accident (LOCA), and may become autocatalytic beyond 1,200 0C, thus generating a large amount of hydrogen. The concern for the zircaloy oxidation reaction has been heightened since the March 2011 events of Fukushima, Japan. One solution offering promising results is the use of silicon carbide (SiC) cladding in nuclear reactor fuel rod designs. SiC, a robust ceramic which reacts very slowly with water or steam, has many features that meet or exceed that of zircaloy including the ability to withstand higher temperatures due to a higher melting point and the ability to absorb fewer neutrons than zircaloy which would allow for increased safety margins and fuel burnup. An experimental investigation of the oxidation performance of a-SiC during a postulated LOCA event was performed. The test facility was designed and fabricated to test the oxidation rates of zircaloy and SiC in a high temperature, high-purity, flowing steam environment. Studies of zircaloy-4 oxidation were conducted to validate the test facility for this purpose. Thirty six zircaloy-4 tests lasting up to 30 minutes, at temperatures ranging from 800°C to 1,200°C, were completed and compared to existing models and literature data. Additionally, six longer duration a-SiC tests lasting from 8 hours to 48 hours, at temperatures of 1,140°C and 1,200°C, were completed. These tests clearly show that, from an oxidation perspective, SiC significantly outperforms zircaloy in high-flowing, superheated steam. For zircaloy, results from the most intense temperature/duration testing combination of 1,200°C for 30 minutes show 15.6 percent weight gain. For the most intense SiC tests at 1,200°C for eight hours, a weight loss of two orders of magnitude less occurred, a 0.077 percent weight loss. The four 24 hour and 48 hour SiC tests at 1,140°C also correlate well with the expected paralinear oxidation trend and further confirm that SiC is more resistant to oxidation in high temperature steam than zircaloy.
by Ramsey Paul Arnold.
S.M.
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Holcomb, Gordon Randolph. "The high temperature oxidation of hafnium-carbide /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487596807821735.

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Marsh, M. G. "The effect of a temperature gradient on high temperature fretting wear." Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267625.

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Okano, Terumi. "High temperature mercury oxidation kinetics via bromine mechanisms." Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-012509-223212/.

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Arnold, K. "High temperature oxidation behaviour of nickel-base superalloys." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3005778/.

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The Ni-base superalloys are a popular range of materials for study following consolidation by additive manufacturing (AM) techniques, such as selective laser melting (SLM). However, very little work has been done to assess the high temperature oxidation behaviour of Ni-base superalloys fabricated by SLM, despite the fact that this class of alloy is designed primarily for operation at temperatures >650°C. In the present work, the isothermal oxidation behaviour of the Ni-base superalloys Alloy 718 and Alloy 625 was studied following consolidation by SLM. A third Ni-base superalloy, Haynes 230, which is doped with a small amount of the reactive element La, was also studied following SLM-consolidation. The same three alloys were studied in wrought form for comparison purposes. Also studied following consolidation by SLM were oxide dispersion strengthened (ODS) derivatives of Alloy 625 and Haynes 230, which contained a 0.5 Wt. % addition of Y2O3, added by mechanical alloying (MA), and developed during the project for which the present work was conducted. Comparators for the ODS variants of Alloy 625 and Haynes 230 were fabricated by spark plasma sintering (SPS). All of the alloys were oxidised in laboratory air at 900°C and the oxidation kinetics determined using thermogravimetric analysis (TGA), or from scale thickness measurements. The work has shown that SLM-consolidated Alloy 718 oxidised slightly faster than wrought Alloy 718. SLM-consolidated Haynes 230 oxidised ~3x faster than wrought Haynes 230 alloy, but SLM-consolidated Alloy 625 oxidised ~2x slower than wrought Alloy 625. The ODS variant of Alloy 625, in SLM-consolidated and SPS-consolidated forms, oxidised ~10x more slowly than wrought Alloy 625. The SLM-consolidated ODS variant of Haynes 230 oxidised at approximately the same rate as wrought Haynes 230, but in SPS-consolidated form the ODS variant of Haynes 230 oxidised ~10x faster than wrought Haynes 230. The improvement in the oxidation resistance of the ODS variant of Alloy 625 is attributed to the well-known reactive element effect, which occurs when alloys are appropriately doped with reactive elements. The reduction in the oxidation resistance of the SPS-consolidated ODS variant of Haynes 230 is attributed to overdoping of the alloy with reactive elements, which is known to decrease the oxidation resistance of nickel-base alloys. It is proposed that SLM-consolidation improves the oxidation resistance of the ODS variant of Haynes 230 by ‘slagging off’ reactive elements from the alloy during consolidation, but for the same reason, the oxidation resistance of Haynes 230 is reduced by SLM-consolidation.
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Ooi, Thian Ngan. "High temperature oxidation of platinum aluminide coated CMSX-4." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444569.

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Daloz, William. "Developing a high temperature, oxidation resistant molybdenum-silica composite." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54375.

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A new powder processing approach to produce oxidation resistant molybdenum alloys for high temperature use has been developed. Oxidation protection is provided by fine dispersion of silica glass particles within a molybdenum matrix. As the molybdenum oxidizes, the glass is exposed and melts to form a self-healing protective oxide coating. Additionally, homogeneously dispersed Mo5SiB2 and/or Mo2B provide boria upon oxidation which reduces glass viscosity and allows flowing glass to coat the surface while remaining solid internally. This is similar to the oxidation protection used in Mo-3Si-1B (wt%) systems; however embedding the glass directly into the Mo matrix and eliminating the Mo3Si (A15) phase provides the same volume of glass at lower volume fractions of brittle phases and also without embrittling Si impurities in solution in Mo. Additionally the glass composition can be tailored for different applications and different temperatures beyond that achievable in Mo-Si-B based systems. A variety of microstructures, compositions and additional components for improved oxidation protection are also explored, and mechanisms of the oxidation protection are discussed.
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Miller-Oana, Melia. "Oxidation Behavior of Carbon and Ultra-High Temperature Ceramics." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/605121.

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Hypersonic vehicles require material systems that can withstand the extreme environment they experience during flight. Carbon-based materials and ultra-high temperature ceramics are candidates for materials systems that will protect hypersonic vehicles. In order to study the material response, an oxyacetylene torch facility and thermal gravimetric analysis are used to investigate the gas-solid interactions under conditions that simulate aspects of flight. The oxyacetylene torch facility is characterized as a function of position from the tip for heat flux and oxygen content. By understanding the local heat flux and oxygen conditions, experiments are designed so that graphite ablation rates can be measured as a function of heat flux and partial pressure of oxygen. Further investigation shows that composition of the material influences the temperature response where ultra-high temperature ceramics exhibit the lowest surface temperatures. Using thermal gravimetric analysis, the isothermal oxidation behavior of ultra-high temperature ceramics from 1000-1600°C is investigated using a Dynamic Non- Equilibrium method in order to understand the reaction kinetics of ZrB₂-SiC where parabolic rate constants are determined. Isothermal oxidation behavior is compared to non-isothermal mass gain and oxide scale formation where specimens oxidized isothermally gain 3 times more mass and have oxide scales 4 times as thick. Finally, the effect of SiC content in ZrB₂ on temperature during oxyacetylene torch testing is determined. Increasing the amount of SiC results in lower front face temperatures because more heat is absorbed due to the endothermic reactions of evaporation of SiO₂.
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Books on the topic "High temperature oxidation"

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Barrett, Charles A. High-temperature cyclic oxidation data. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1989.

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Barrett, Charles A. High-temperature cyclic oxidation data. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1989.

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Barrett, Charles A. High-temperature cyclic oxidation data. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1989.

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T, Lansaw P., Aerojet TechSystems Company (U.S.), and Lewis Research Center, eds. High-temperature, oxidation-rersistant thruster research. Sacramento, Calif: Aerojet Propulsion Division, Research & Technology, 1990.

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T, Lansaw P., Aerojet TechSystems Company (U.S.), and Lewis Research Center, eds. High-temperature, oxidation-rersistant thruster research. Sacramento, Calif: Aerojet Propulsion Division, Research & Technology, 1990.

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T, Lansaw P., Aerojet TechSystems Company (U.S.), and Lewis Research Center, eds. High-temperature, oxidation-rersistant thruster research. Sacramento, Calif: Aerojet Propulsion Division, Research & Technology, 1990.

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High temperature oxidation and corrosion of metals. Amsterdam: Elsevier, 2008.

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United States. National Aeronautics and Space Administration., ed. High-temperature oxidation behavior of iridium-rhenium alloys. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. High-temperature oxidation behavior of iridium-rhenium alloys. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. High-temperature oxidation behavior of iridium-rhenium alloys. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "High temperature oxidation"

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Sequeira, C. A. C. "High-Temperature Oxidation." In Uhlig's Corrosion Handbook, 247–80. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470872864.ch20.

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Perez, Nestor. "High-Temperature Oxidation." In Electrochemistry and Corrosion Science, 389–425. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24847-9_10.

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McCafferty, E. "High-Temperature Gaseous Oxidation." In Introduction to Corrosion Science, 453–76. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0455-3_15.

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Patra, Anshuman. "High Temperature Oxidation Characteristics." In Oxide Dispersion Strengthened Refractory Alloys, 149–64. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003201007-8.

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Kofstad, P. "High Temperature Corrosion of Metals." In Microscopy of Oxidation, 2–9. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003422020-2.

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Nardou, F., L. Ranaivoniarivo, P. Raynaud, and M. Billy. "Relaxation of the Mechanical Stresses Developed Through Oxide Scales During Oxidation of Metals." In High Temperature Alloys, 89–96. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-1347-9_10.

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Meier, G. H., and F. S. Pettit. "Microscopy of the Corrosion of High-Temperature Coatings." In Microscopy of Oxidation, 225–37. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003422020-30.

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Kawahara, Yuuzou, Kouji Sasaki, and Yuuji Nakagawa. "Development and Application of High Cr-High Si-Fe-Ni Alloys to High Efficiency Waste-To-Energy Boilers." In High-Temperature Oxidation and Corrosion 2005, 513–22. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-409-x.513.

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Seal, Sudipta, Leyda A. Bracho, Vimal Desai, and Kirk Scammon. "High Temperature Surface Oxidation Chemistry of IN-738LC." In Elevated Temperature Coatings, 209–18. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch16.

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Shah, Swapnil, and Narendra B. Dahotre. "High Temperature Oxidation of VC Coated H13 Steel." In Elevated Temperature Coatings, 291–300. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch22.

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Conference papers on the topic "High temperature oxidation"

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MARIN, G. B. "HIGH TEMPERATURE OXIDATION PROCESSES: OXIDATIVE COUPLING OF METHANE." In Proceedings of the NIOK (Netherlands Institute for Catalysis Research) Course on Catalytic Oxidation. WORLD SCIENTIFIC, 1995. http://dx.doi.org/10.1142/9789814503884_0006.

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GUMEN, O. "High-Temperature Oxidation of High-Entropy FeNiCoCrAl Alloys." In Quality Production Improvement and System Safety. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902691-4.

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Abstract. Phase composition and mechanical properties and the formation of oxide layers on Fe40-xNiCoCrAlx (x = 5 and 10 at.%) alloys in long-term oxidation at 900 and 1000°C were studied. In the initial cast state, depending on the aluminum content and valence electron concentration, the alloys contain only an fcc solid solution (VEC = 8 e/a) or a mixture of fcc and bcc phases (VEC = 7.75 e/a). Thin continuous oxide scales containing Cr2O3 and NiCr2O spinel formed on the surface of both alloys oxidized at 900°C for 50 h. A further increase in the annealing time to 100 h leads to the formation of aluminum oxide Al2O3 in the scale on the Fe30Ni25Co15Cr20Al10 alloy, having high protective properties. An increase in the oxidation temperature to 1000°C results in partial failure of the protective layer on the alloy with 10 at.% Al. Long-term holding at 900°C (100 h) + 1000°C (50 h) does not change the phase composition of the Fe35Ni25Co15Cr20Al5 alloy matrix, being indicative of its high thermal stability. In the two-phase Fe30Ni25Co15Cr20Al10 alloy, the quantitative ratio of solid solutions sharply changes: the amount of the bcc phase increases from 4 to 54 wt.% and its B2-type ordering is observed. The mechanical characteristics of the starting alloys and those after long-term high-temperature annealing were determined by automated indentation. The hardness (HIT) and elastic modulus (E) of the cast Fe35Ni25Co15Cr20Al5 alloy are equal to 2 and 147 GPa, respectively, and decrease to 1.8 and 106 GPa after a series of long-term annealing operations. The Fe30Ni25Co15Cr20Al10 alloy shows the opposite dependence: HIT increases from 2.5 in the initial state to 3.1 GPa after annealing and E decreases from 152 to 134 GPa. This indicates that the Fe30Ni25Co15Cr20Al10 alloy is promising as a high-temperature oxidation-resistant and creep-resistant material. Introduction
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Garat, V., J. Deleume, J.-M. Cloue, and E. Andrieu. "High Temperature Intergranular Oxidation of Alloy 718." In Superalloys. TMS, 2005. http://dx.doi.org/10.7449/2005/superalloys_2005_559_569.

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Chang Xie, M. Davis, and A. Schultz. "MR sensor oxidation mechanism at high temperature." In IEEE International Magnetics Conference. IEEE, 1999. http://dx.doi.org/10.1109/intmag.1999.837401.

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Nickel, Klaus G., Zhe Fu, and Peter Quirmbach. "High Temperature Oxidation and Corrosion of Engineering Ceramics." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-434.

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The problems of high temperature oxidation and corrosion of Si3N4 and SiC are discussed, other ceramics usually do not meet the requirements of structural applications at high temperatures. If the application has to meet very defined limits of size change it is necessary to specify the exact material composition as well as the atmosphere composition and physical environment to be able to specify the limits. This is in any case true for extremely reducing conditions or very high temperatures. Under oxidising conditions the region between ≈ 850–1100°C should be avoided when salty, sulfurous and wet fuel conditions are expected. High temperature limits for long-time applications of Si3N4 in oxidising environments are between 1200–1400°C, corresponding to eutectic temperatures of the glass phase. The ultimate temperature limit for long-time use of SiC is likely to be between 1700–1800°C, where bubble formation and spallation may become inevitable.
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Wood, J. H., A. D. Foster, and P. W. Schilke. "High Temperature Coating for Improved Oxidation/Corrosion Protection." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-239.

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As the firing temperatures of land-based gas turbines have increased in recent years, greater demands are being made on component materials. In particular, the increased surface metal temperatures of first stage buckets has shifted the nature of the protection required of bucket coatings from that of strictly high temperature hot corrosion resistance to that of both hot corrosion and oxidation protection. Characteristics of low temperature hot corrosion, high temperature hot corrosion and high temperature oxidation are presented. An overview of GE bucket coating materials is given and related to the types of corrosion and/or oxidation protection they provide. Evaluation of buckets removed from high firing, heavy duty gas turbines is presented. A new, more oxidation resistant coating, PLASMAGUARD™ GT-2 9 PLUS, developed and tested by GE to provide both oxidation and corrosion protection, is described. Bucket coating refurbishment recommendations are also made to maximize first stage bucket life. Current and future GE developmental work, both compositional and process, aimed at further improvements in bucket coating materials for oxidation protection of first stage buckets is also presented.
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Dabbaghi, Hediyeh, Mohammadreza Nematollahi, Keyvan Safaei Baghbaderani, Parisa Bayatimalayeri, and Mohammad Elahinia. "High-Temperature Oxidation Kinetics of Additively Manufactured NiTiHf." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8449.

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Abstract NiTi-based high-temperature shape memory alloys (HTSMAs) such as NiTiHf have been utilized in a broad range of applications due to their high strength and work output, as well as, their ability to increase the transformation temperatures (TTs). Recently, additive manufacturing techniques (AM) have been widely used to fabricate complex shape memory alloy components without any major modifications or tooling and has paved the way to tailor the manufacturing and fabrications of microstructure and critical properties of their final parts. NiTi alloys properties such as transformation temperatures can be significantly altered due to oxidation, which can occur during the manufacturing process or post-processing. In this work, the oxidation behavior of Ni-rich NiTi20Hf shape memory alloys, which was fabricated by the selective laser melting (SLM) method, is evaluated. Thermogravimetric analysis (TGA) is used to assess the kinetic behavior of the oxidation at different temperature ranges of 500, 700, and 900 °C for 20 hours in the air. After oxidation, to evaluate the microstructure and chemical composition X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) was conducted. The isothermal oxidation kinetics of conventional NiTi20Hf alloys were studied, and the results were compared to AM samples. Results show a two-stage oxidation rate at which oxidation increased with the high rate at the initial stage. As the oxidation time increased, the oxidation rate gradually decreased. The oxidation behavior of NiTiHf alloys initially obeyed logarithmic rate law and then followed by parabolic rate law. SEM results showed the formation of a multi-layered oxide scale, including TiO2, NiTiO3, and Hf oxide.
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Whitney, E., G. Smikovich, and J. Fink. "High Temperature Oxidation of a Modified Alloy 625." In Superalloys. TMS, 1997. http://dx.doi.org/10.7449/1997/superalloys_1997_695_704.

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Reed, Brian. "High temperature oxidation behavior of iridium-rhenium alloys." In 30th Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-2893.

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Thyagarajan, K., and K. A. Bhaskaran. "High temperature gas phase oxidation kinetics of benzene." In Current topics in shock waves 17th international symposium on shock waves and shock tubes Bethlehem, Pennsylvania (USA). AIP, 1990. http://dx.doi.org/10.1063/1.39375.

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Reports on the topic "High temperature oxidation"

1

Wood, Elizabeth Sooby, Stephen Scott Parker, and Andrew Thomas Nelson. Molybdenum Disilicide Oxidation Kinetics in High Temperature Steam. Office of Scientific and Technical Information (OSTI), September 2016. http://dx.doi.org/10.2172/1323383.

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Nelson, Andrew T. Considerations in Execution of High Temperature Steam Oxidation Testing. Office of Scientific and Technical Information (OSTI), April 2014. http://dx.doi.org/10.2172/1126684.

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Sparks, Joshua C., Kelsie E. Krantz, Jonathan H. Christian, and Aaron L. Washington, II. High-Temperature Oxidation of Plutonium Surrogate Metals and Alloys. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1281778.

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Porter, J. T., G. H. Reynolds, T. D. Kunz, and M. J. Berry. Laser Probe Vaporization/Oxidation Testing of High Temperature Composites. Fort Belvoir, VA: Defense Technical Information Center, July 1989. http://dx.doi.org/10.21236/ada211410.

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Li, Ju. Molecular Modeling of High-Temperature Oxidation of Refractory Borides. Fort Belvoir, VA: Defense Technical Information Center, February 2008. http://dx.doi.org/10.21236/ada482157.

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Birney, K., and A. Cronenberg. Oxidation of N Reactor fuel under high-temperature accident conditions. Office of Scientific and Technical Information (OSTI), March 1988. http://dx.doi.org/10.2172/7038141.

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Hendrick, M. R., J. M. Hampikian, and W. B. Carter. High-temperature oxidation of an alumina-coated Ni-base alloy. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/244675.

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Shehee, T., and R. Pierce. HIGH-TEMPERATURE OXIDATION OF STAINLESS STEEL FOR FUEL CLADDING REMOVAL. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1160321.

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Olsen. PR-179-10203-R01 Characterization of Oxidation Catalyst Performance - VOCs and Temperature Variation. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), June 2012. http://dx.doi.org/10.55274/r0010753.

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Oxidation catalysts are typically specified to reduce carbon monoxide (CO), Hazardous Air Pollutants (HAPs) and/or Volatile Organic Compounds (VOCs) from lean-burn engines. The application of catalysts to HAPs and VOC destruction is more recent, so greater effort has been placed on optimizing for CO oxidation than HAPs or VOC oxidation. In general, the catalysts consist of a porous, high surface area -alumina carrier material on a ceramic (typically cordierite) or stainless steel substrate. Although the alumina has some effectiveness in oxidation at high temperature, its primary role here is to provide a high surface area support for a well dispersed layer of platinum (Pt) and/or palladium (Pd) which provides numerous catalytic sites for oxidation activity. This work extends the current knowledge-base for application of oxidation catalysts in three areas: (1) species specific removal efficiencies, (2) temperature dependence, and (3) space velocity.
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Susan, Donald, and Arnold R. Marder. DIFFUSION AND HIGH TEMPERATURE OXIDATION OF Ni-Al BASED COMPOSITE COATINGS. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/788093.

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