Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development
Само за регистроване кориснике
2014
Аутори
Krsmanović, RadenkaAntić, Željka
Milićević, Bojana R.
Pošarac-Marković, Milica B.
Janaćković, Đorđe
Dramićanin, Miroslav
Brik, Mikhail G.
Steins, Ints
Veljović, Đorđe
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
Grain growth / Electron microscopy / Optical properties / Y2O3 / Spark Plasma SinteringИзвор:
Ceramics International, 2014, 40, 6, 8853-8862Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Утицај величине, облика и структуре наночестица на њихова својства и својства нанокомпозита (RS-MESTD-Basic Research (BR or ON)-172056)
DOI: 10.1016/j.ceramint.2014.01.108
ISSN: 0272-8842
WoS: 000335201800150
Scopus: 2-s2.0-84897370776
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Krsmanović, Radenka AU - Antić, Željka AU - Milićević, Bojana R. AU - Pošarac-Marković, Milica B. AU - Janaćković, Đorđe AU - Dramićanin, Miroslav AU - Brik, Mikhail G. AU - Steins, Ints AU - Veljović, Đorđe PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2857 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. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development EP - 8862 IS - 6 SP - 8853 VL - 40 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 and Dramićanin, Miroslav and Brik, Mikhail G. and Steins, Ints and Veljović, Đorđe", 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.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development", pages = "8862-8853", number = "6", volume = "40", doi = "10.1016/j.ceramint.2014.01.108" }
Krsmanović, R., Antić, Ž., Milićević, B. R., Pošarac-Marković, M. B., Janaćković, Đ., Dramićanin, M., Brik, M. G., Steins, I.,& Veljović, Đ.. (2014). Polycrystalline (Y0.7Gd0.3)(2)O-3:Eu3+ ceramics fabricated by Spark Plasma Sintering: Densification and microstructure development. in Ceramics International Elsevier Sci Ltd, Oxford., 40(6), 8853-8862. https://doi.org/10.1016/j.ceramint.2014.01.108
Krsmanović R, Antić Ž, Milićević BR, Pošarac-Marković MB, Janaćković Đ, Dramićanin M, Brik MG, Steins I, Veljović Đ. 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, Dramićanin, Miroslav, Brik, Mikhail G., Steins, Ints, Veljović, Đorđe, "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 . .