Dielectric Strontium Zirconate Sprayed by a Plasma Torch

Ctibor, P.; Sedlacek, J.; Janata, M.

doi:10.30509/pccc.2017.75729

Dielectric Strontium Zirconate Sprayed by a Plasma Torch

Authors

¹ ASCR, Za Slovankou 3, Institute of Plasma Physics

² Department of Elecrotechnology, Faculty of Electrical Engineering Czech, Czech Technical university

³ Chief of the LPT dislocated laboratory, Institute of Plasma Physics, ASCR, Za Slovankou 3

10.30509/pccc.2017.75729

Abstract

Amultifunctional material, strontium zirconate, SrZrO3, studied in literatures as a dielectric ceramics, thermal barrier coating, proton-conductor, and luminescent material was sprayed by a water-stabilized plasma torch WSP 500. Stainless steel and plain carbon steel were used as substrates. Coatings with thickness of 1 to 2 mm were produced, whereas the substrates were preheated over 450 °C. The torch working at 150 kW was able to spray SrZrO3 with a spray rate of 10 kg per hour. Microstructure, phase composition, dielectric properties, and optical band gap were also investigated.

Keywords