Institute of Fundamental Technological Research
Polish Academy of Sciences


Andrzej J. Panas

Recent publications
1.  Senderowski C., Panas A.J., Fikus B., Zasada D., Kopeć M., Korytchenko K.V., Effects of heat and momentum gain differentiation during gas detonation spraying of FeAl powder particles into the water, Materials, ISSN: 1996-1944, DOI: 10.3390/ma14237443, Vol.14, No.23, pp.7443-1-18, 2021

In this paper, dynamic interactions between the FeAl particles and the gaseous detonation stream during supersonic D-gun spraying (DGS) conditions into the water are discussed in detail. Analytical and numerical models for the prediction of momentum and complex heat exchange, that includes radiative effects of heat transfer between the FeAl particle and the D-gun barrel wall and phase transformations due to melting and evaporation of the FeAl phase, are analyzed. Phase transformations identified during the DGS process impose the limit of FeAl grain size, which is required to maintain a solid state of aggregation during a collision with the substrate material. The identification of the characteristic time values for particle acceleration in the supersonic gas detonation flux, their convective heating and heat diffusion enable to assess the aggregation state of FeAl particles sprayed into water under certain DGS conditions

D-gun spraying, FeAl intermetallic powder, gas detonation flux, heat transfer, two-phase metallization stream, particle thermal history

Senderowski C. - other affiliation
Panas A.J. - other affiliation
Fikus B. - other affiliation
Zasada D. - other affiliation
Kopeć M. - IPPT PAN
Korytchenko K.V. - other affiliation

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