Novel approach to deposit thermally-sensitive materials using hybrid plasma spraying

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00573336" target="_blank" >RIV/61389021:_____/23:00573336 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.31399/asm.cp.itsc2023p0351" target="_blank" >http://dx.doi.org/10.31399/asm.cp.itsc2023p0351</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31399/asm.cp.itsc2023p0351" target="_blank" >10.31399/asm.cp.itsc2023p0351</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Novel approach to deposit thermally-sensitive materials using hybrid plasma spraying

Popis výsledku v původním jazyce

Hybrid plasma spraying has been proved to provide novel coating microstructures as a result of the simultaneous injection of a dry coarse powder and a liquid feedstock into the plasma jet. Such microstructure contains both large splats originating from the conventional dry powder and finely dispersed miniature splats deposited from the liquid. This approach enables preparation of coatings from virtually all materials which are conventionally processed using plasma spraying. However, incorporation of materials susceptible to decomposition at high temperatures is still challenging even using this concept due to the high thermal energy provided to all feedstocks to be deposited. Hereby, we propose an innovative approach of incorporation of thermally-sensitive materials into a coating sprayed using a high-enthalpy plasma torch. As a case study, Al2O3 was sprayed from dry coarse powder and MoS2 was sprayed from the suspension which was deposited directly onto the substrates, i.e., by-passing the hot plasma jet. The retention of the added material in the coating was evaluated using scanning electron microscopy and x-ray diffraction.

Název v anglickém jazyce

Novel approach to deposit thermally-sensitive materials using hybrid plasma spraying

Popis výsledku anglicky

Hybrid plasma spraying has been proved to provide novel coating microstructures as a result of the simultaneous injection of a dry coarse powder and a liquid feedstock into the plasma jet. Such microstructure contains both large splats originating from the conventional dry powder and finely dispersed miniature splats deposited from the liquid. This approach enables preparation of coatings from virtually all materials which are conventionally processed using plasma spraying. However, incorporation of materials susceptible to decomposition at high temperatures is still challenging even using this concept due to the high thermal energy provided to all feedstocks to be deposited. Hereby, we propose an innovative approach of incorporation of thermally-sensitive materials into a coating sprayed using a high-enthalpy plasma torch. As a case study, Al2O3 was sprayed from dry coarse powder and MoS2 was sprayed from the suspension which was deposited directly onto the substrates, i.e., by-passing the hot plasma jet. The retention of the added material in the coating was evaluated using scanning electron microscopy and x-ray diffraction.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA22-21478S" target="_blank" >GA22-21478S: Vysokoentalpická depozice hybridních plazmových nástřiků</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Thermal Spray 2023: Proceedings from the International Thermal Spray Conference

ISBN

978-1-62708-453-6

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

351-356

Název nakladatele

ASM International

Místo vydání

Québec City

Místo konání akce

Quebec City

Datum konání akce

22. 5. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—