Cr-doped A2O3 deposited by solution precursor plasma spraying by hybrid water-stabilized plasma torch

0555680 - ÚFP 2022 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Tesař, Tomáš - Mušálek, Radek - Medřický, Jan - Čížek, Jan - Lukáč, František - Csáki, Štefan - Chráska, Tomáš
Cr-doped A2O3 deposited by solution precursor plasma spraying by hybrid water-stabilized plasma torch.
Proceedings of the International Thermal Spray Conference. Materials Park: ASM International, 2019, 2019-May (2019), s. 714-719. ISBN 978-1-62708-242-6.
[International Thermal Spray Conference and Exposition: New Waves of Thermal Spray Technology for Sustainable Growt. Yokohama (JP), 26.05.2019-29.05.2019]
Grant CEP: GA ČR(CZ) GA19-10246S
Institucionální podpora: RVO:61389021
Klíčová slova: thermochromy * alumina * intermixed solution
Obor OECD: Materials engineering

Hybrid water/argon-stabilized plasma torch (WSP-H) has a great potential in solution precursor plasma spraying (SPPS) due to its high enthalpy and high achievable throughput. This study is focused on the fundamental mechanisms taking place during the co-deposition of aluminum and chromium oxides from solution precursor feedstocks aiming at maximization of a-alumina content in the deposits. The deposition principles were studied and the coatings were evaluated by SEM, XRD and XRF methods. The chemical composition of the deposits corresponded to the formulation of the feedstocks showing a uniform deposition of both materials, and an increasing a-phase content was observed with the increasing Cr-forming precursor in the solution.
Trvalý link: http://hdl.handle.net/11104/0330143