Number of the records: 1
After-glow luminescence of SrZrO3 prepared by plasma spraying
- 1.0495196 - ÚFP 2019 RIV NL eng J - Journal Article
Ctibor, Pavel
After-glow luminescence of SrZrO3 prepared by plasma spraying.
Boletin de la Sociedad Espanola de Ceramica y Vidrio. Roč. 57, č. 5 (2018), s. 190-194. ISSN 0366-3175. E-ISSN 2173-0431
R&D Projects: GA MŠMT(CZ) EF15_003/0000464
Institutional support: RVO:61389021
Keywords : plasma spraying * strontium zirconate * reflectivity * luminescence
OECD category: Materials engineering
Impact factor: 1.633, year: 2018
https://www.sciencedirect.com/science/article/pii/S0366317518300281?via%3Dihub
Strontium zirconate SrZrO3 is a multifunctional material studied in literature as a luminescent material, proton-conductor, thermal barrier coating, and dielectric ceramics. In our study this material was sprayed by a high feed-rate water-stabilized plasma torch WSP 500 at its standard electric power 150 kW. The as-deposited coatings exhibited lamellar microstructure with relatively high porosity over 13%. Archimedean (water immersion) specific weight was 4.54 g/cm3. Annealing was done in air at 1350 °C. Annealed coating exhibited an interesting response to UV light, including after-glow luminescence. After excitation by 225 nm light the sample exhibited after-glow exponential luminescence decay with 5 s characteristic lifetime. Diffused reflectance of the coatings was measured as well. The infrared reflectance is slightly lower after annealing, whereas in the ultraviolet band it is higher.
Permanent Link: http://hdl.handle.net/11104/0288215
Number of the records: 1