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particle kinematics

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Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 229-234, May 24–28, 2021,
... are explained using a computational analysis based on a direct numerical simulation of the gas flow and the kinematic interactions with the particles. The CFD computation demonstrates that the gas stream starts to be unstable inside the nozzle with more turbulence as it moves towards the exit of the nozzle...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1377-1381, May 8–11, 2000,
... as compared to 20 mm/s) or a low cleaned with acetone, the substrates were grit blasted rotation speed (240 rpm as compared to 480 rpm) with 250^m diameter corundum particles under 3.5 induces a hardness increases. Such slow kinematics bars of air pressure. The mean surface roughness of the conditions leads...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1371-1376, May 8–11, 2000,
... Abstract Today, powder particles diameter used for thermal spraying is generally comprised between 5 and 100µm with a preferred range around 40µm for APS applications. Actually, the future trends in plasma spraying are directed to the use of fine or ultrafine powders and the reduction...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 123-125, May 25–29, 1998,
... in their durability and their scuffing measurements and analysis of the seizure phenomena in a resistance. A fact that a properlybuilt coating is applied does series of tests executed according to ASTMD 2714 and not warrant a long and failure free work of kinematics pair - ASTMD 2981 testing standards. Fig.l shows...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 461-472, May 24–28, 2021,
.... The powder feed combination of these different effects generates particle rate was 60g/min. The kinematics of the robot consisted of emissions around the process. spraying with an up and down movement on a rotating cylinder. During the different coating cycles, the particle jet is on the The thermal spraying...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 209-213, May 24–28, 2021,
... of the feedstock during processing. From a range -100 mV to +500 mV vs the open circuit potential was distance of 30 mm, the thermal and kinematic states during investigated. The experiments were performed at room impact were determined as a function of particle size. The temperature and the potential was recorded...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 386-395, May 24–28, 2021,
... Abstract This study developed microstructure-based finite element (FE) models to investigate the behavior of cold-sprayed aluminum-alumina (Al-Al2O3) metal matrix composite (MMCs) coatings subject to indentation and quasi-static compression. Based on microstructural features (i.e., particle...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 583-592, September 15–18, 1997,
... with temperature dependent thermodynamic and transport properties. The governing equations were solved by a developed finite difference elliptic code using a simplified turbulence model. The particles were modelled by a stochastic discrete particle model. The robot trajectory together with the heat transfer model...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 553-560, May 24–28, 2021,
... and at oxides, respectively three times higher as compared to cast nickel and by abrasion due to small particles [8-10]. Comparative aluminum bronze, while far outperforming bulk shipbuilding studies of arc sprayed coatings with respect to the repair of steel. Hence, their properties should be sufficient...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 523-527, May 25–29, 1998,
.... For calculating gas pressure on the particle Fig. 6. VPS experimental unit 1. Vacuum chamber; 2. Robot; 3. Plasma gun; 4. Plasma 2. dy distance (particle motion during dt period) is jet; 5. Optical fibres; 6. Connection unit; 7. Cable; 8. detennined from a kinematics equation: Monochromator; 9. Computer; 10...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 211-217, May 8–11, 2000,
.... The P static pressure in the fluid particle influence of the substrate properties is also considered. Fb external force Simulation of particle splashing was performed by n kinematic viscosity of the particle commercial software with the parameters and boundary condition given above. The substrate...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 875-883, October 7–11, 1996,
... and compact behaviour of thermally sprayed ceramic and metallic microstructure, improvements have been made to coatings were reported by Tobe et. al. [1] using a two achieve a high particle speed, temperature and the effect roller type rolling fatigue test machine. They observed of substrate topography etc...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 399-406, May 8–11, 2000,
... in diameter with an apex angle l + vd(siny/) 2(1+ v) d(sm^y/) of 109.2". Substrate material was sandblasted and preheated before spraying. The spray powder had a particle size of where 9 is the diffraction angle, s is the quantity of strains and, 15-50 nm and spraying conditions were of commercial Gd...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 361-366, May 25–29, 1998,
... thirty years of use the process is still highly empirical. kinematic and dynamic model of the robot b) a model of Theoretical modelling has in recent years given a better the workpiece to be sprayed, and c) a model for the scientific understanding and increased coating distribution of the particles; i.e...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 413-418, May 25–29, 1998,
... Abstract Various models exist of the 2D impact of a molten thermal spray particle onto a flat solid surface. Such models, however, cannot be used to examine 3D effects such as the asymmetric splashing and breakup which are common under thermal spray conditions. The focus of the present work...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 569-576, October 7–11, 1996,
...) condition on the free smface for pressure. in in Besides, boundary conditions system should be where the index (s) depotes the values of the substrate, completed with kinematic conditions for speed. without the index - to the melted particle. According to suggested model, there are no stresses at We should...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 765-770, May 24–28, 2021,
.... One principle of transition detection is based on thermographic imaging and the proportionality of wall friction coefficient and heat transfer coefficient as seen in Equation (1), where stands for the free-stream velocity, for the thermal 765 conductivity of the body and for the kinematic...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 422-430, May 24–28, 2021,
... Abstract Microstructure and physicochemical properties of a thermally sprayed coating depend on the dynamics of the particles interacting with the spray jet. This is especially the case for electrical properties. In this study, different spraying processes were used to spray p-type and n-type...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 563-568, October 7–11, 1996,
... of the equations set characterize the involved phenomena (1,2); authors mainly is obtained with the standard k-e turbulence model. Finally, the concentrated their efforts on the study of the particles (3,4) or algebraic equations set is solved by means of the SIMPLE on the D.C. plasma jets (5-8). During the last...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 648-656, May 24–28, 2021,
... a higher thickness of 277 ± 14 µm by 12 passes, the flame-sprayed resistivity in comparison to coatings sprayed with air. In coatings were produced at different stand-off distances, and in addition to the phase composition and kinematics, it can be different thicknesses (by adjusting the number of passes...