Academic literature on the topic 'Splat-quenching'

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Journal articles on the topic "Splat-quenching"

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Zhou, Zhi Ming, Bin Bin Lei, Li Wen Tang, Tao Zhou, Yang Hu, and Min Min Cao. "Numerical Simulation on Splat-Quenched CuCr25 Alloys." Advanced Materials Research 189-193 (February 2011): 3949–53. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.3949.

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The numerical simulation model of rapid solidification splat-quenching CuCr25 alloys was built in this paper. The vacuum chamber, cooling cooper plate and sample were taken into account as a holistic heat system. Based on the heat transfer theory and liquid solidification theory, the heat transfer during the rapids solidification process of CuCr25 flakes prepared by splat-quenching can be approximately modeled by one-dimensional heat conduction equation, so that the temperature distribution and the cooling rate of the flake can be determined by the integration of this equation. The simulative
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Serov, M. M., A. Yu Patrushev, D. P. Farafonov, R. A. Valeev, and A. I. Safaryan. "Structure and properties of Ta-Zr alloy obtained by high-speed melt quenching from liquid state." Izvestiya Vuzov. Tsvetnaya Metallurgiya (Universities' Proceedings Non-Ferrous Metallurgy), no. 3 (June 13, 2021): 66–72. http://dx.doi.org/10.17073/0021-3438-2021-3-66-72.

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The paper considers the effect of Ta-Zr binary system splat quenching implemented by the method of pendant drop melt extraction. The study was conducted using two mixtures of tantalum and zirconium elementary powders with a content of 60 and 6 % of tantalum respectively. After mixing, the compositions were pressed at 250 MPa in a steel mold on a hydraulic press. Sintering was carried out in a vacuum furnace at 1350 °C and a pressure of 10-3 Pa. Splat quenching was carried out in a vacuum at 2•10-2 Pa using electron-beam heating and a spinning disk absorber. Resulting fiber thickness was 15 to
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Li, L., X. Y. Wang, G. Wei, A. Vaidya, H. Zhang, and S. Sampath. "Substrate melting during thermal spray splat quenching." Thin Solid Films 468, no. 1-2 (2004): 113–19. http://dx.doi.org/10.1016/j.tsf.2004.05.073.

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Zhou, Zhi Ming, Li Wen Tang, Wei Jiu Huang, et al. "Microstructure Study of Undercooled Hypereutectic Cu95Cr5 Alloys." Advanced Materials Research 239-242 (May 2011): 691–94. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.691.

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Microstructure of Cr-rich phase in undercooled hypereutectic Cu95Cr5 alloys was studied by using arc melting, electromagntic levitation melting and splat quenching. The results showed that the alloys generally have a microstructure consisting of a fine Cr-rich dendrites in a Cu-rich matrix. Even there existed strong electromagnetic stirring during solidification process, the nonhomogeneous Cr-rich dendrites were observed in electromagnetic levitation melted alloys. However, fine homogenous primary Cr-rich particles or equiaxed Cr-rich grains distributed in the Cu-rich matrix in splat quenched
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De Guire, Mark R., R. C. O'Handley, G. Kalonji, and M. Darby Dyar. "Spinel ferrite-silica glass obtained by splat quenching." Journal of Non-Crystalline Solids 81, no. 3 (1986): 351–64. http://dx.doi.org/10.1016/0022-3093(86)90502-8.

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Zhou, Zhi Ming, Wei Jiu Huang, Li Wen Tang, et al. "Microstructure of Cu75Cr25 Alloys under Different Conditions." Advanced Materials Research 230-232 (May 2011): 247–50. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.247.

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The microstructure of Cu75Cr25 alloys was investigated by using vacuum non-consumable arc melting, electromagnetic levitation and splat quenching. The microstructure and solidification behavior of the Cr-rich were investigated by scanning electron microscopy (SEM). The results showed that inhomogeneous Cr-rich dendrite distributes on Cu-rich matrix for arc melted alloys. The microstructure consisting of a fine dispersion of Cr-rich dendrite in a Cu-rich matrix for electromagnetic levitated alloys. However, the morphology and size of the Cr-rich phase vary greatly with the cooling rate for spla
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Zhou, Z. M., W. J. Huang, J. Luo, et al. "Effect of Cooling Rate on the Microstructure of Cu80Cr20 Alloys." Materials Science Forum 694 (July 2011): 704–7. http://dx.doi.org/10.4028/www.scientific.net/msf.694.704.

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The effect of cooling rate on the microstructure of Cu80Cr20 alloys was studied by using vacuum non-consumable arc melting, vacuum induction melting, electromagnetic levitation and splat quenching. The microstructure evolution of the Cr-rich were analyzed by scanning electron microscopy (SEM) and optical microscopy. The results showed that nonuniform Cr-rich dendrite distributes on Cu-rich matrix for arc melted alloys and uniform Cr-rich dendrite distributes on Cu-rich matrix for electromagnetic levitation melted alloys and vacuum induction melted alloys. However, the Cr-rich phase show both d
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Kushnerov, O. I., and V. F. Bashev. "The effect of cooling rate on structure and mechanical properties of Co-Cr-Cu-Fe-Ni-Sn high entropy alloys." Journal of Physics and Electronics 29, no. 1 (2021): 85–90. http://dx.doi.org/10.15421/332114.

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The paper examines the structure and mechanical properties of multicomponent high-entropy CoCrCuFeNiSnx alloys in as-cast and splat-quenched states. The compositions of investigated alloys is analyzed by using the criteria for predicting the phase composition of high-entropy alloys available in the literature, based both on calculations of the entropy and enthalpy of mixing and on an estimate of the difference between the atomic radii of the component. The alloy films is fabricated by the known technique of splat-quenching. A cooling rate estimated by a film thickness is ~ 106 K/s. The simulta
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Che, G. C., and M. Ellner. "Powder Crystal Data for the High-Temperature Phases Cu4In, Cu9In4(h) and Cu2In(h)." Powder Diffraction 7, no. 2 (1992): 107–8. http://dx.doi.org/10.1017/s0885715600018340.

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AbstractThe high-temperature phases Cu4In, Cu9In4(h) and Cu2In(h) cannot be retained by quenching. In contrast to this, splat-cooling specimens of these alloys yielded single phase products. Cell parameters in the range of homogeneity of these phases were measured. Powder crystal data for Cu4In(W type), Cu9In4(h) (Cu9Al4type) and Cu2In(h) (Ni2In type) are given.
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Baik, K. H., H. K. Seok, H. S. Kim, and P. S. Grant. "Non-equilibrium Microstructure and Thermal Stability of Plasma-sprayed Al–Si Coatings." Journal of Materials Research 20, no. 8 (2005): 2038–45. http://dx.doi.org/10.1557/jmr.2005.0249.

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A splat-quenched, thick Al–Si deposit was manufactured by low-pressure plasma spraying (LPPS) and investigated in terms of microstructural inhomogeneity, Si solid solubility in α–Al, formation of metastable phases, and thermal stability. The LPPS Al–Si deposit had an inhomogeneous, layered microstructure consisting of splat-quenched lamellae and the incorporation of unmelted or partially melted particles. The splat-quenched Al–Si lamellae were formed by deposition of a fully liquid droplet and had an almost featureless microstructure at relatively low magnifications. There was a significant re
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Dissertations / Theses on the topic "Splat-quenching"

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Kushnerov, O. I., and V. F. Bashev. "Structure and mechanical properties of Al-Co-Cr-Fe-Mn-Ni-Si-V high-entropy films obtained by splat-quenching." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42650.

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The multicomponent films of Al-Co-Cr-Fe-Mn-Ni-Si-V high-entropy alloys obtained by splat-quenching from melt were investigated. Phase formation criteria for high-entropy alloys were considered. The films have a structure with body-centered cubic lattice. The value of lattice parameters of the investigated alloys suggests that the solid solutions are form on the base of Cr lattice, in view of its higher melting temperature. The positive influence of microstrains level and dislocation density on the microhardness values of splat-quenched high-entropy alloys has been established. Improved mechan
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Book chapters on the topic "Splat-quenching"

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Barault, G., A. Khater, J. M. Greneche, Y. Labaye, and N. Randrianantoandro. "Phonon Quenching in Splat Cooling." In Springer Series in Solid-State Sciences. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84888-9_163.

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Conference papers on the topic "Splat-quenching"

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Matejicek, J., S. Sampath, and H. Herman. "Processing Effects on Splat Formation, Microstructure and Quenching Stress in Plasma Sprayed Coatings." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0419.

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Abstract Plasma sprayed deposits consist of multitude of flattened lamellar particles - 'splats' - which as basic building elements form their structure and determine the deposit properties. Therefore, knowledge of the mechanism of their formation and characteristics is important for understanding the processing property relationships. Although extensive studies have been done on splat formation, there is a lack of correlation to macroscopic deposit properties. Among factors influencing the deposit properties and performance is residual stress, originating from splat quenching and thermal mism
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Li, L., X. Y. Wang, A. Vaidya, S. Sampath, G. Wei, and H. Zhang. "Substrate Melting During Thermal Spray Splat Quenching: Case Study for Molybdenum Droplets on Various Substrates." In ITSC2003, edited by Basil R. Marple and Christian Moreau. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.itsc2003p1041.

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Abstract Molybdenum powder has been plasma sprayed on stainless steel, brass and aluminum substrates. The substrate melting phenomenon is observed and investigated by means of scanning electron microscopy (SEM) and scanning white light interferometery (SWLI). It is found that the flower-shape splat morphology is typical for molybdenum on all three substrate materials when the substrate is at room temperature. Notable substrate melting is manifested through the energy dispersion analysis of X-ray (EDAX) map and Robinson back-scattered image of cross-sections of splats. It has been shown that th
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Kushnerov, O. I., and B. F. Bashev. "Structure and magnetic properties of Al-Cu-Fe-Ni-Si multicomponent films obtained by splat-quenching." In 2016 International Conference on Nanomaterials: Application & Properties (NAP). IEEE, 2016. http://dx.doi.org/10.1109/nap.2016.7757246.

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Harvill, Greyson, Jacob Williamson, Grace Schneider та ін. "Exploration of Rapidly Solidified β and Near-β Ti Alloys Processed by Two Piston Splat Quenching". У TMS 2023, San Diego CA March 19-23. US DOE, 2023. http://dx.doi.org/10.2172/1960371.

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Leger, A. C., A. Haddadi, B. Pateyron, et al. "Residual Stresses during Coating Generation: Plasma Sprayed Alumina Coating on XC38—Measurements and Calculations." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0895.

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Abstract A simplified 1D model has been developed to calculate the temperature-time history of alumina layering splats. The splats were obtained by plasma spraying alumina fused-and-crushed particles onto steel substrates. The model correlates solidification time with splat layer thickness and cooling rate and helps to explain the process of columnar growth, the development of residual stresses, and the effect of quenching and expansion mismatch.
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Wei, G., H. Xiong, L. Zheng, and H. Zhang. "Modelling From Particle In-Flight to Coating Build-Up for Thermal Spray Processes." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56368.

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To obtain good quality coatings, spray parameters must be carefully selected. Due to the large variety in process parameters, it is difficult to optimize the process for each specific coating and substrate combination. In this paper, the process of particle in-flight, coating growth and pore formation has been analyzed by numerical simulation. Three sub-models, plasma-particle, splat formation and coating buildup, have been developed. A comprehensive three-dimensional computational code (LAVA3D-P) is used to predict the plasma flame formation, flame-particle interaction, and particle state and
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Wei, Guanghua, Hongbing Xiong, Lili Zheng, and Hui Zhang. "An Advanced Ceramic Coating Buildup Model for Thermal Spray Processes." In ITSC2004, edited by Basil R. Marple and Christian Moreau. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.itsc2004p0707.

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Abstract To obtain good quality coatings, spray parameters must be carefully selected. Due to the large variety in process parameters, it is difficult to optimize the process for each specific coating and substrate combinations. In this paper, the process of particle in-flight, coating growth and pore formation has been analyzed by numerical simulation. Three sub-models, plasma-particle, splat formation and coating buildup, have been developed. A comprehensive three-dimensional computational code (LAVA3D-P) is used to predict the plasma flame formation, flame-particle interaction, and particle
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Fauchais, P., A. M. Vardelle, M. Vardelle, A. Denoirjean, B. Pateyron, and M. El Ganaoui. "Formation and Layering of Alumina Splats: Thermal History of Coating Formation, Resulting Residual Stresses, and Coating Microstructure." In ITSC2001, edited by Christopher C. Berndt, Khiam A. Khor, and Erich F. Lugscheider. ASM International, 2001. http://dx.doi.org/10.31399/asm.cp.itsc2001p0865.

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Abstract As underlined in 1981 by Mc Pherson, thermo-mechanical properties of plasma-sprayed coatings depend not only on the way particles flatten and resulting splats solidify and cool down, but also on the thermal history of particle layering at the same location. To illustrate what is our present knowledge in that field, plasma-sprayed alumina coatings will be considered through modelings and measurements. The first part of this paper discusses the phenomena linked with particle impact and splat formation: splashing, spreading, solidification and grain growth, angle of impact in conjunction
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Arai, M. "Modeling of Plasma-Sprayed Thermal Barrier Coatings for Prediction of Residual Stress." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p1072.

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Abstract The surfaces of gas turbine components are coated by thermal barrier coatings (TBCs) with a plasma spraying technique. Spallation damage is an essential problem, as well known, in usage of TBC. A lot of efforts for TBC interfacial strength examination had been done, however studies examined how residual stress are formed after the process and also the coating stress changes with temperature were limited. In this report, the residual stress prediction model is proposed based on the splat deposition process. Simplified model including the plasma sprayed process is developed based on she
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Matejicek, J., S. Sampath, T. Gnaeupel-Herold, and H. J. Prask. "Processing Effects on Residual Stress in Ni+5%AI Coatings–Comparison of Different Spraying Methods." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0351.

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Abstract Properties of thermally sprayed coatings, including residual stress, are controlled by various parameters of the spraying process. This study is focused on three thermal spraying techniques with significantly different particle temperatures and velocities. These are plasma spraying, twin wire arc spraying and high velocity oxy-fuel spraying. For each method, in-flight particle diagnostics was performed. Through-thickness residual stress profiles in Ni+5%A1 coatings on steel substrates were determined nondestructively by neutron diffraction. The stresses range from high tensile in the
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