Strontium Zirconate TBC Sprayed by a High Feed-Rate Water-Stabilized Plasma Torch.

0482533 - ÚFP 2018 RIV US eng J - Článek v odborném periodiku
Ctibor, Pavel - Nevrlá, Barbara - Čížek, Jan - Lukáč, František
Strontium Zirconate TBC Sprayed by a High Feed-Rate Water-Stabilized Plasma Torch.
Journal of Thermal Spray Technology. Roč. 26, č. 8 (2017), s. 1804-1809. ISSN 1059-9630. E-ISSN 1544-1016
Grant CEP: GA TA ČR(CZ) TE02000011
Institucionální podpora: RVO:61389021
Klíčová slova: adhesion * plasma spraying * strontium zirconate * thermal insulator
Obor OECD: Coating and films
Impakt faktor: 1.949, rok: 2017
https://link.springer.com/article/10.1007/s11666-017-0641-7

A novel thermal barrier coating (TBC) material, strontium zirconate SrZrO3, was sprayed by a high feedrate water-stabilized plasma torch WSP 500. Stainless steel coupons were used as substrates. Coatings with a thickness of about 1.2 mm were produced, whereas the substrates were preheated over 450 C. The torch worked at 150 kW power and was able to spray SrZrO3 with a high spray rate over 10 kg per hour. Microstructure and microhardness, phase composition, adhesion, thermal conductivity and
thermal expansion were evaluated. The coating has low thermal conductivity under 1 W/m K in the interval from room temperature up to 1200 oC. Its crystallite size is slightly over 400 nm and thermal expansion 12.3 lm K-1 in the similar temperature range.

Trvalý link: http://hdl.handle.net/11104/0277963