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oxidation process

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Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 235-240, May 24–28, 2021,
...Abstract Abstract In this study, a new physically-based finite element approach is proposed to model and predict the superficial oxide layer removal and the occurrence of localized metallic bonding during particle impacts. The process physics, based on explosive welding theory and experiments...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 75-82, May 25–29, 1998,
... conditions of coatings, seem to be totally different from those in the spray process in the case of WC, but similar in the case of TiC and Cr 3 C 2 . Oxide layer scale adhesion strengths and, possibly, the high volatility of WO 3 seem to be responsible for this difference. It can also be assumed...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1067-1071, May 25–29, 1998,
...Abstract Abstract The atmospheric pressure plasma spray processes for functional layers of the tubular solid oxide fuel cell are developed to build a fuel cell structure consisting of air electrode, ceramic electrolyte, and fuel electrode. Further more the characteristics of each film are also...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 1042-1046, March 4–6, 2002,
... structure of the titanium coatings by X-ray diffraction and quantitative analysis of nitrogen and oxygen contents in the coatings. The paper aims to research the influence of atomization gas on nitriding and oxidizing process of the titanium. Furthermore, with regard to Ar atomized coating, it investigates...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 101-106, May 24–28, 2021,
... phases while the depth of inter-diffusion zone (IDZ) was decided by the inward diffusion of Cr. diffusion kinetic model MCrAlY superalloys microstructure oxidation process single crystal superalloys thermal spray coatings Thermal Spray 2021: Proceedings from the International Thermal Spray...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 873-878, March 4–6, 2002,
... resistance of a thermally sprayed chromium alloy layer is impaired by the oxides contained in the layer. The dependence of the layer oxide content of HOVF-chromium alloy layers on the particle size is closely linked to the dependency between application behavior and particle size. The physical process...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 51-59, May 24–28, 2021,
..., the effects of different processing sequences on MCrAlY coating characteristics and short-term isothermal oxidation performance were investigated. Specifically, cold spray deposition of NiCoCrAlTaY coatings was carried out on single-crystal Ni-base superalloy substrates that underwent various degrees...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 463-469, May 8–11, 2000,
... to the oxidation during the spray process and the insufficient bond between hard phases and the metallic binder. Strategies to improve the properties of TiC-based coatings aim for microstructural modifications, especially by alloying additives into the thermal spray powder. By HVOF and vacuum plasma spraying (VPS...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 717-721, September 15–18, 1997,
..., there has been little research into the physical processes occurring during HVOF spraying of this system, such as carbide dissolution, liquid-metallic phase oxidation, decarburisation and rapid solidification. The purpose of the present work has been to perform a systematic characterisation of the chromium...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 522-526, May 24–28, 2021,
... layer early in the process. The solid solubility of Cr in such Cu phase was very low which can function as a Cr blocker so that Cr external oxidation can be inhibited. The inward diffusion of Mn from the coating to the substrate was caused by the formation of a Mn concentration peak at the interface...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 503-506, May 25–29, 1998,
... for the explanation of the experimental data on the coating porosity and level of oxidation. high velocity oxy-fuel spraying porosity process modeling stainless steel powder Thermal Spray: Meeting the Challenges of the 21st Century: Copyright © 1998 ASM International® Proceedings of the 15th International...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 447-453, May 24–28, 2021,
... is a deoxidizing effect of ultra-high temperature contained complex process, which further limits this material droplets. Moreover, the oxide-free droplets promote the applications in industries. deposition of Ni-Al coatings with lower oxygen content and porosity than the conventional Ni-Al coatings...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 471-476, October 7–11, 1996,
...Abstract Abstract An important aspect of the APS plasma spray process is the turbulent mixing of the spray jet with the surrounding air. The air mixing into the jet causes undesirable oxidation of the sprayed coating. In this work the air mixing in the plasma jet was determined by direct...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 239-242, September 15–18, 1997,
...Abstract Abstract In thermal spraying of metal-polymer coatings, the processes of polymers oxidation and destruction can have special features, as the temperature of heating of the filler particles can significantly exceed the temperature of destruction of the polymer binder. Hence, the need...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 211-216, May 25–29, 1998,
... (Plateforme), PARIS ARMEES, FRANCE Abstract Table I' Characterization of materials Differents oxides layers have been studied by friction in REF. OXIDES PROCESS COATING naturel sea water medium under the same conditions POROSITY (Cf203, A1203, Al203 + Cf203). The evolution of (CASE) NATURE AND differents...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 130-135, March 4–6, 2002,
..., a transmission electron microscope, and an X-ray phase analyzer. Dense nano-structured oxide layers (zirconium oxides and aluminum oxides) with high microhardness are produced using the atmospheric plasma spray process. Paper includes a German-language abstract. aluminum oxide atmospheric plasma spraying...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 341-349, May 8–11, 2000,
... stress in the coating, the tensile bond strength, the amount of porosity, oxides and impurities near the coating/substrate interface, and the hardness of the coating. An understanding of the relation of these coating characteristics to process variables such as the material used for the coating, spray...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 895-900, September 15–18, 1997,
... fraction of the oxides amounts to V0x = 8.5%. were investigated. In order to determine the effect of the hot- gas oxygen content on oxide formation during the coating process, the tests were carried out in the stochiometric and kerosene-rich mixture range (O/K < 3.4) as well as with an oxygen-rich mixture...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 347-350, March 4–6, 2002,
...Abstract Abstract Low pressure plasma spraying has taken a dominant role in the production deposition of MCrAlY functional coatings on turbine components since it's introduction in the 70’s. The specific advantages in this process are possibilities to:• Deposit oxidation sensitive materials...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 72-77, March 4–6, 2002,
..., in order to determine the influence of the process parameters (arc current, gas flow throughput, oxygen and fuel throughput, powder throughput, and carrier gas throughput) with regard to the powder jet parameters. Paper includes a German-language abstract. aluminum oxide-SiO aluminum oxide-titanium...