Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development
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Аутори
Krsmanović, RadenkaAntić, Željka
Milićević, Bojana R.
Pošarac-Marković, Milica B.
Janaćković, Đorđe T.
Dramićanin, Miroslav
Brik, Mikhail G.
Steins, Ints
Veljović, Đorđe N.
Чланак у часопису
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Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples. (C) 2014 Elsevier Ltd and Tech...na Group S.r.l. All rights reserved.
Кључне речи:
Grain growth / Electron microscopy / Optical properties / Y2O3 / Spark Plasma SinteringИзвор:
Ceramics International, 2014, 40, 6, 8853-8862Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-45020)
- Утицај величине, облика и структуре наночестица на њихова својства и својства нанокомпозита (RS-172056)
DOI: 10.1016/j.ceramint.2014.01.108
ISSN: 0272-8842; 1873-3956
WoS: 000335201800150
Scopus: 2-s2.0-84897370776
Колекције
Институција/група
VinčaTY - JOUR AU - Krsmanović, Radenka AU - Antić, Željka AU - Milićević, Bojana R. AU - Pošarac-Marković, Milica B. AU - Janaćković, Đorđe T. AU - Dramićanin, Miroslav AU - Brik, Mikhail G. AU - Steins, Ints AU - Veljović, Đorđe N. PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5972 AB - Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. T2 - Ceramics International T1 - Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development VL - 40 IS - 6 SP - 8853 EP - 8862 DO - 10.1016/j.ceramint.2014.01.108 ER -
@article{ author = "Krsmanović, Radenka and Antić, Željka and Milićević, Bojana R. and Pošarac-Marković, Milica B. and Janaćković, Đorđe T. and Dramićanin, Miroslav and Brik, Mikhail G. and Steins, Ints and Veljović, Đorđe N.", year = "2014", abstract = "Using Spark Plasma Sintering it is possible to produce polycrystalline ceramics of very fine microstructure and good mechanical properties. This work presents the fabrication of such ceramics using Eu3+-doped (Y0.7Gd0.3)(2)O-3 nanopowder as a starting material. We monitored the changes in the morphology of ceramic samples and their consolidation with additional thermal treatments at 650 degrees C and 1100 degrees C. The ceramics grain size remained in the sub-micron domain, even when elevated temperatures were used for annealing. The best results were obtained for the sample sintered at 1100 degrees C for 20 min, which had the smallest grain size, theoretical density, and the most intensive photoluminescence, along with the maximum hardness and appropriate fracture toughness. The Judd-Ofelt intensity parameters and branching ratios were calculated, taking into account the difference in the effective refractive index for the nanopowder and ceramic samples. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.", journal = "Ceramics International", title = "Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development", volume = "40", number = "6", pages = "8853-8862", doi = "10.1016/j.ceramint.2014.01.108" }
Krsmanović, R., Antić, Ž., Milićević, B. R., Pošarac-Marković, M. B., Janaćković, Đ. T., Dramićanin, M., Brik, M. G., Steins, I.,& Veljović, Đ. N.. (2014). Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development. in Ceramics International, 40(6), 8853-8862. https://doi.org/10.1016/j.ceramint.2014.01.108
Krsmanović R, Antić Ž, Milićević BR, Pošarac-Marković MB, Janaćković ĐT, Dramićanin M, Brik MG, Steins I, Veljović ĐN. Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development. in Ceramics International. 2014;40(6):8853-8862. doi:10.1016/j.ceramint.2014.01.108 .
Krsmanović, Radenka, Antić, Željka, Milićević, Bojana R., Pošarac-Marković, Milica B., Janaćković, Đorđe T., Dramićanin, Miroslav, Brik, Mikhail G., Steins, Ints, Veljović, Đorđe N., "Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development" in Ceramics International, 40, no. 6 (2014):8853-8862, https://doi.org/10.1016/j.ceramint.2014.01.108 . .