Dielectric Strontium Zirconate Sprayed by a Plasma Torch


Journal: Vol. 10, No.4, autumn 2017 - Article 3   Pages :  225 Until 230



Article Code:
PCCC-2017-09-21-368

Authors:
P. Ctibor: Institute of Plasma Physics Academy of Sciences of the Czech Republic - Materials Engineering Department
J. Sedlacek: FEE CTU - Electrotechnology
M. Janata: IPP ASCR - ME


Article's 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:
Plasma spraying, Electrical properties, Strontium Zirconate, Insulators

References:
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