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ITSC 2022, Thermal Spray 2022: Proceedings from the International Thermal Spray Conference, 1-13, May 4–6, 2022,
... Abstract Environmental barrier coatings (EBCs) are required to protect SiC based composites in high temperature, steam containing combustion environments found in the latest generation of high efficiency gas turbine aeroengines. Ytterbium disilicate has shown promise as an environmental barrier...
Proceedings Papers

ITSC 2022, Thermal Spray 2022: Proceedings from the International Thermal Spray Conference, 422-431, May 4–6, 2022,
... 2 O 7 using atmospheric plasma spray (APS) without any auxiliary heat-treating during spraying, vacuum chamber, or subsequent furnace heat treatment, leading to considerable cost, time, and energy savings. Yb 2 Si 2 O 7 powder was sprayed on SiC substrates with three different plasma powers of (90...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 18-22, May 24–28, 2021,
... Abstract In this study, a novel self-healing concept is considered in order to increase the lifetime of thermal barrier coatings (TBCs) in modern gas turbines. For that purpose, SiC healing particles were introduced to conventional 8YSZ topcoats by using various plasma spray concepts, i.e...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 122-130, May 24–28, 2021,
... Abstract Three different coatings were deposited using the Detonation Gun Spraying (DGS) technology from steel powders alone, and steel powers mixed with Fe3C and SiC particles, respectively. The microstructural characteristics of these coatings were examined and the hardness of each type...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 185-191, May 26–29, 2019,
... Abstract This study assesses the microstructure and properties of SiC-based coatings deposited using liquid and gas-fueled HVOF spraying techniques and a recently developed SiC-YAG ceramic powder. The coatings are shown to be superior to plasma and high-frequency pulse deposition sprayed SiC...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 541-545, May 26–29, 2019,
... Abstract In this work, silicon carbide coatings were fabricated by plasma spray-vapor deposition in order to study the effect of plasma gas mixtures on coating microstructure and phase composition. Coatings deposited by Ar-H 2 plasma gas were found to contain a composite phase of SiC and Si...
Proceedings Papers

ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 90-97, June 7–9, 2017,
... Abstract The present work summarizes the most important results of a research project dealing with the comprehensive!! investigation of the bonding mechanisms between cold sprayed Al coatings and various poly- and monocrystalline ceramic substrates (Al 2 O 3 , AlN, Si 3 N 4 , SiC, MgF 2 ). Due...
Proceedings Papers

ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 789-793, June 7–9, 2017,
... Abstract SiC coatings were prepared with pack powder in different particle sizes in a vacuum atmosphere by pack cementation technique to protect the C/SiC composites substrate from oxidation. The phase and microstructure of the coatings were investigated by XRD, SEM analyses. The relationship...
Proceedings Papers

ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 237-243, May 10–12, 2016,
... Abstract This study assesses the effect of yttrium additions on plasma sprayed MoS 2 /Ni-SiC-Y coatings produced from particle-reinforced composite powders. It is shown that the microstructure of the self-lubricating coatings improves with the addition of yttrium, resulting in increased...
Proceedings Papers

ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 664-670, May 10–12, 2016,
... in this report, including Al 2 O 3 -TiO 2 , SiC-Al 2 O 3 -ZrO 2 , and zirconia-based TBCs. nanoparticles nanostructured coatings reconstitution process thermal spraying Thermal Spray 2016: Proceedings from the International Thermal Spray Conference and Exposition May 10-12, 2016, Shanghai, People s...
Proceedings Papers

ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 927-932, May 10–12, 2016,
... Abstract In this work, SiC coatings varying in content were prepared on carbon-fiber-reinforced silicon-carbide composite (C/SiC) substrates in order to study the effect of free silicon on oxidation resistance. The coatings were formed in a vacuum atmosphere by means of pack cementation using...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 544-552, May 11–14, 2015,
... of Al on further ceramic substrates (AlN, Si 3 N 4 and SiC). In particular, it should be clarified whether the different ionicity of the chemical bonding in these substrate materials influences the interface formation or not. Aluminum coatings were deposited alternatively by using cold-gas spraying...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 689-694, May 11–14, 2015,
... Abstract Novel synthesis of thermal spray grade silicon carbide (SiC) feedstock powder is necessary to allow deposition of this material using atmospheric plasma spraying (APS) method. SiC particles with average size of 1.0 µm are treated using co-precipitation techniques to deliver yttrium...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 1138-1147, May 11–14, 2015,
... Abstract The current paper reports self-healing plasma sprayed Mgspinel (MgAl 2 O 4 ) coatings. The coatings were used for electrical insulation in high temperature fuel cells. A range of potential self-healing additives consisting of SiC+X (where X was BaO, CaO, ZnO, Y 2 O 3 , GeO 2 , Ta 2 O 5...
Proceedings Papers

ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 912-917, May 21–23, 2014,
... of SiC reinforcement particles were used: 2, 15, and 25 µm. For the ball-milled powders, morphology and microstructure were investigated as a function of SiC grain size and milling time. It is shown that the hardness of the composite and the efficiency of the spray process depend on the size of the hard...
Proceedings Papers

ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 94-99, May 21–23, 2014,
... Abstract In this work, a low-temperature melting composition located within the glass-forming region of the Y 2 O 3 -Al 2 O 3 -SiO 2 (YAS) system is proposed and tested as a protective coating for SiC ceramics. Glassy coatings 197 µm thick were obtained by flame spraying YAS granules on SiC...
Proceedings Papers

ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 379-384, May 21–23, 2014,
... of the interface region showed that adhesion was the result of recrystallisation and heteroepitaxial growth. Cold spray aluminum coatings were also deposited on Al 2 O 3 , AlN, Si 3 N 4 , and SiC substrates to determine if ionic bonding plays a role in interface formation. For comparison, aluminum coatings...
Proceedings Papers

ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 525-530, May 21–23, 2014,
... with nitrogen are also possible. It has also been found that when nitrogen is present, titanium aluminides, Ti 3 Al and TiAl, are likely to form nitrides in the sprayed coatings. Interfacial reactions between the phases of a composite have been studied, and in the case of the Ti 3 SiC 2 -Cu system, it has been...
Proceedings Papers

ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 541-545, May 21–23, 2014,
... Abstract This work evaluates the potential of using a plasma spray process to introduce SiC into zirconia diboride ceramic coatings. Controlling the spraying of the ultra-refractory compound ZrB 2 is the first challenge as it represents the matrix in which SiC particles will reside...
Proceedings Papers

ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 74-78, May 13–15, 2013,
... Abstract Compounds of the material group known as MAX phases combine metallic and ceramic properties. In this work, MAX-phase coatings are deposited from modified Ti 3 SiC 2 and Ti 2 AlC commercial feedstock powders using HVOF and atmospheric plasma spraying (APS). Feedstock powders...