Results 151 to 160 of about 145,210 (211)

Selective Product Enhancement in an Auger Reactor: Pyrolysis of Pine Bark through In Situ Recirculation of Pyrolysis Vapors. [PDF]

Energy Fuels
Kilic YT, Dal Belo Takehara M, Skreiberg Ø, Umeki K.   +3 more
europepmc   +1 more source

Performance Evolution and Prediction Model of Dam Polyurethane Insulation Materials Under Multi-Field Coupling Conditions in Hot Summer and Cold Winter Climate Zones. [PDF]

Materials (Basel)
Liao L, Liang H, Zhao T, Han W, Dong Y, Zhang D, Su Z.   +6 more
europepmc   +1 more source

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Gas-Substrate Heat Exchange During Cold-Gas Dynamic Spraying

Journal of Thermal Spray Technology, 2012
Abstract In this study, the temperature distribution of the surfaces of several substrates under an impinging gas jet from a cold spray nozzle was determined. A low-pressure cold-gas dynamic spraying unit was used to generate a jet of hot compressed nitrogen that impinged upon flat substrates. Computer codes based on a finite differences
McDonald, A. G., Ryabinin, A. N., Irissou, É., Legoux, J.-G.   +3 more
openaire   +2 more sources

Tribological Properties of Cold Gas Spraying FeMnCrSi Alloy

International Thermal Spray Conference, 2021
Abstract FeMnCrSi and 316L alloy coatings were deposited on carbon steel substrates via high-pressure cold gas spraying and their microstructure, hardness, and wear resistance were obtained. Ball-on-disk testing (ASTM G99) was used to measure sliding wear behaviors.
Rodolpho F. Vaz, Sergi Dosta, Irene G. Cano, Anderson G.M. Pukasiewicz   +3 more
openaire   +1 more source

Bonding mechanism in cold gas spraying

Acta Materialia, 2003
Cold gas spraying is a relatively new coating process by which coatings can be produced without significant heating of the sprayed powder. In contrast to the well-known thermal spray processes such as flame, arc, and plasma spraying, in cold spraying there is no melting of particles prior to impact on the substrate.
Hamid Assadi, Frank Gärtner, Thorsten Stoltenhoff, Heinrich Kreye   +3 more
openaire   +1 more source

Gas Dynamic Principles of Cold Spray

Journal of Thermal Spray Technology, 1998
This paper presents an analytical model of the cold-spray process. By assuming a one-dimensional isentropic flow and constant gas properties, analytical equations are solved to predict the spray particle velocities. The solutions demonstrate the interaction between the numerous geometric and material properties.
R.C. Dykhuizen, M.F. Smith
openaire   +1 more source

Development of Cold Gas Sprayed Coatings

International Thermal Spray Conference, 2003
Abstract By cold spraying, coatings are produced without significant heating of the spray powder and the substrate material. The powder particles are accelerated in a preheated gas stream to velocities of more than 500 m/s without melting and form a dense and tightly bonded coating.
J. Voyer, T. Stoltenhoff, H. Kreye
openaire   +1 more source

Deformation Microstructure of Cold Gas Sprayed Coatings

MRS Proceedings, 2001
ABSTRACTCold Gas Spraying is a new coating technique, in which the formation of dense, tightly bonded coatings occurs only due to the kinetic energy of high velocity particles of the spray powder. These particles are still in the solid state as they impinge on the substrate.
C. Borchers, T. Stoltenhoff, F. Gäartner, H. Kreye, H. Assadi   +4 more
openaire   +1 more source

HVOF K2 vs. Cold Gas Spraying

International Thermal Spray Conference, 2011
Abstract A conventional GTV K2 kerosene fuel HVOF spraying system has been modified with the aim to achieve process conditions comparable to cold gas spraying concerning the average particle velocities and surface temperatures in the spray distance.
A. Wank, A. Schwenk
openaire   +1 more source