TY  - JOUR
AU  - Krsmanović, Radenka
AU  - Bregiroux, Damien
AU  - Viana, Bruno
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1787
AB  - Dense yttria ceramics were prepared by Spark Plasma Sintering of a nanopowder synthesized using a PEG assisted combustion method. Densification occurs between 800 degrees C and 900 degrees C without any additive. This corresponds to one of the lowest sintering temperature found in the literature for Y2O3. Because of a significant release of organic species, the Y2O3 precursors obtained by this synthesis route contains macropores that have a negative impact on the final microstructure. We show that the emergence of these macropores can be minimized by decreasing the annealing temperature used for the precursor powder (in a temperature range of 300-650 degrees C) as opposed to the usual 800 degrees C. Finally, a precursor annealed at 650 degrees C allows us to obtain fully dense ceramics, with a very fine and homogeneous microstructure (and a grain size around 300 nm). Vickers microhardness and fracture toughness were measured and discussed in relation to the microstructure of the ceramics.
T2  - Ceramics International
T1  - Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics
VL  - 43
IS  - 17
SP  - 15834
EP  - 15841
DO  - 10.1016/j.ceramint.2017.08.153
ER  - 

@article{
author = "Krsmanović, Radenka and Bregiroux, Damien and Viana, Bruno",
year = "2017",
abstract = "Dense yttria ceramics were prepared by Spark Plasma Sintering of a nanopowder synthesized using a PEG assisted combustion method. Densification occurs between 800 degrees C and 900 degrees C without any additive. This corresponds to one of the lowest sintering temperature found in the literature for Y2O3. Because of a significant release of organic species, the Y2O3 precursors obtained by this synthesis route contains macropores that have a negative impact on the final microstructure. We show that the emergence of these macropores can be minimized by decreasing the annealing temperature used for the precursor powder (in a temperature range of 300-650 degrees C) as opposed to the usual 800 degrees C. Finally, a precursor annealed at 650 degrees C allows us to obtain fully dense ceramics, with a very fine and homogeneous microstructure (and a grain size around 300 nm). Vickers microhardness and fracture toughness were measured and discussed in relation to the microstructure of the ceramics.",
journal = "Ceramics International",
title = "Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics",
volume = "43",
number = "17",
pages = "15834-15841",
doi = "10.1016/j.ceramint.2017.08.153"
}

Krsmanović, R., Bregiroux, D.,& Viana, B.. (2017). Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics. in Ceramics International, 43(17), 15834-15841.
https://doi.org/10.1016/j.ceramint.2017.08.153

Krsmanović R, Bregiroux D, Viana B. Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics. in Ceramics International. 2017;43(17):15834-15841.
doi:10.1016/j.ceramint.2017.08.153 .

Krsmanović, Radenka, Bregiroux, Damien, Viana, Bruno, "Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics" in Ceramics International, 43, no. 17 (2017):15834-15841,
https://doi.org/10.1016/j.ceramint.2017.08.153 . .