Influence of Plasma Dynamics on Material Synthesis Product of IPD Process |
| M. Rabińskia and K. Zdunekb a Department of Plasma Physics and Technology, The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Otwock-Świerk, Poland b Faculty of Materials Science, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, Poland |
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| In the present work we discuss recent studies concerning plasma dynamics influence on the material synthesis product of the impulse plasma deposition process. Conditions favourable for evaluation of the Rayleigh-Taylor instability on the current sheet surface were found during the computational studies of plasma movement in the coaxial accelerator. Appearance of this phenomenon explains non-uniform phase composition and morphology of coatings. By modifying the design of the plasma accelerator, we succeeded in reducing substantially Rayleigh-Taylor instability and in obtaining α-Al2 O3 coatings instead of common γ-Al2O3. |
| DOI: 10.12693/APhysPolA.96.319 PACS numbers: 07.05.Tp, 52.30.-q, 52.35.Py, 52.75.Rx |