After-glow luminescence of SrZrO3 prepared by plasma spraying
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 powe...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-09-01
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| Series: | Boletín de la Sociedad Española de Cerámica y Vidrio |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0366317518300281 |
| _version_ | 1811227550104420352 |
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| author | Pavel Ctibor |
| author_facet | Pavel Ctibor |
| author_sort | Pavel Ctibor |
| collection | DOAJ |
| description | 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. Resumen: Un material multifuncional, el zirconato de estroncio (SrZrO3), estudiado en la literatura como material luminiscente, conductor de protones, recubrimiento de barrera térmica y cerámica dieléctrica se proyectó mediante un plasma estabilizado con agua WSP 500 de alta velocidad de alimentación sobre sustratos de acero inoxidable. Se produjeron revestimientos con un espesor de aproximadamente 1,2 mm. El revestimiento recocido exhibió una respuesta interesante a la luz ultravioleta, incluida la luminiscencia después del resplandor. También se midió la reflectancia difusa de los revestimientos. La reflexión infrarroja es ligeramente más baja después del recocido, mientras que en la banda ultravioleta es más alta. Keywords: Plasma spraying, Strontium zirconate, Reflectivity, Luminescence, Palabras clave: Proyección por plasma, Zirconato de estroncio, Reflectancia, Luminiscencia |
| first_indexed | 2024-04-12T09:43:07Z |
| format | Article |
| id | doaj.art-7ea3819227f04b329709b9a61526463d |
| institution | Directory Open Access Journal |
| issn | 0366-3175 |
| language | English |
| last_indexed | 2024-04-12T09:43:07Z |
| publishDate | 2018-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Boletín de la Sociedad Española de Cerámica y Vidrio |
| spelling | doaj.art-7ea3819227f04b329709b9a61526463d2022-12-22T03:38:00ZengElsevierBoletín de la Sociedad Española de Cerámica y Vidrio0366-31752018-09-01575190194After-glow luminescence of SrZrO3 prepared by plasma sprayingPavel Ctibor0Institute of Plasma Physics, ASCR, Za Slovankou 3, 182 00 Praha 8, Czech Republic; Department of Electrotechnology, Faculty of Electrical Engineering, Czech Technical University, Technicka 2, 166 27 Praha 6, Czech RepublicStrontium 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. Resumen: Un material multifuncional, el zirconato de estroncio (SrZrO3), estudiado en la literatura como material luminiscente, conductor de protones, recubrimiento de barrera térmica y cerámica dieléctrica se proyectó mediante un plasma estabilizado con agua WSP 500 de alta velocidad de alimentación sobre sustratos de acero inoxidable. Se produjeron revestimientos con un espesor de aproximadamente 1,2 mm. El revestimiento recocido exhibió una respuesta interesante a la luz ultravioleta, incluida la luminiscencia después del resplandor. También se midió la reflectancia difusa de los revestimientos. La reflexión infrarroja es ligeramente más baja después del recocido, mientras que en la banda ultravioleta es más alta. Keywords: Plasma spraying, Strontium zirconate, Reflectivity, Luminescence, Palabras clave: Proyección por plasma, Zirconato de estroncio, Reflectancia, Luminiscenciahttp://www.sciencedirect.com/science/article/pii/S0366317518300281 |
| spellingShingle | Pavel Ctibor After-glow luminescence of SrZrO3 prepared by plasma spraying Boletín de la Sociedad Española de Cerámica y Vidrio |
| title | After-glow luminescence of SrZrO3 prepared by plasma spraying |
| title_full | After-glow luminescence of SrZrO3 prepared by plasma spraying |
| title_fullStr | After-glow luminescence of SrZrO3 prepared by plasma spraying |
| title_full_unstemmed | After-glow luminescence of SrZrO3 prepared by plasma spraying |
| title_short | After-glow luminescence of SrZrO3 prepared by plasma spraying |
| title_sort | after glow luminescence of srzro3 prepared by plasma spraying |
| url | http://www.sciencedirect.com/science/article/pii/S0366317518300281 |
| work_keys_str_mv | AT pavelctibor afterglowluminescenceofsrzro3preparedbyplasmaspraying |