Characterization of MgAl2O4 sintered ceramics
Authors
Obradović, NinaFahrenholtz, William G.
Filipović, Suzana
Corlett, Cole
Đorđević, Pavle
Rogan, Jelena
Vulić, Predrag J.
Buljak, Vladimir
Pavlović, Vladimir B.
Article (Published version)
Metadata
Show full item recordAbstract
Single phase MgAl2O4 was made from a one-to-one molar ratio of MgO and Al2O3 powders mixed using ball-milling. Mixtures of MgO and Al2O3 were subsequently treated in planetary ball mill for 30, 60, 90 and 120 minutes in air. The aim of this study was to examine phase composition, microstructure, and densification behavior of sintered specimens. After sintering in dilatometer at 1500 °C, the powder was converted to single phase MgAl2O4. The results show that mechanical activation improved the densification behavior of MgAl2O4 sintered specimens, and it reduced the onset temperature for sintering by approx. 100 oC. Based on dilatometer data, powders were subsequently densified at 1450 oC by hot pressing. Almost аll specimens exhibited full density, while sample activated for 30 minutes showed the fastest densification rate.
Source:
Science of Sintering, 2019, 51, 4, 363-376Publisher:
- ETRAN
Funding / projects:
- Directed synthesis, structure and properties of multifunctional materials (RS-MESTD-Basic Research (BR or ON)-172057)
- Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
DOI: 10.2298/SOS1904363O
ISSN: 1820-7413
WoS: 000509869400002
Scopus: 2-s2.0-85078856472
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Obradović, Nina AU - Fahrenholtz, William G. AU - Filipović, Suzana AU - Corlett, Cole AU - Đorđević, Pavle AU - Rogan, Jelena AU - Vulić, Predrag J. AU - Buljak, Vladimir AU - Pavlović, Vladimir B. PY - 2019 UR - https://dais.sanu.ac.rs/123456789/6949 AB - Single phase MgAl2O4 was made from a one-to-one molar ratio of MgO and Al2O3 powders mixed using ball-milling. Mixtures of MgO and Al2O3 were subsequently treated in planetary ball mill for 30, 60, 90 and 120 minutes in air. The aim of this study was to examine phase composition, microstructure, and densification behavior of sintered specimens. After sintering in dilatometer at 1500 °C, the powder was converted to single phase MgAl2O4. The results show that mechanical activation improved the densification behavior of MgAl2O4 sintered specimens, and it reduced the onset temperature for sintering by approx. 100 oC. Based on dilatometer data, powders were subsequently densified at 1450 oC by hot pressing. Almost аll specimens exhibited full density, while sample activated for 30 minutes showed the fastest densification rate. PB - ETRAN T2 - Science of Sintering T1 - Characterization of MgAl2O4 sintered ceramics SP - 363 EP - 376 VL - 51 IS - 4 DO - 10.2298/SOS1904363O UR - https://hdl.handle.net/21.15107/rcub_dais_6949 ER -
@article{ author = "Obradović, Nina and Fahrenholtz, William G. and Filipović, Suzana and Corlett, Cole and Đorđević, Pavle and Rogan, Jelena and Vulić, Predrag J. and Buljak, Vladimir and Pavlović, Vladimir B.", year = "2019", abstract = "Single phase MgAl2O4 was made from a one-to-one molar ratio of MgO and Al2O3 powders mixed using ball-milling. Mixtures of MgO and Al2O3 were subsequently treated in planetary ball mill for 30, 60, 90 and 120 minutes in air. The aim of this study was to examine phase composition, microstructure, and densification behavior of sintered specimens. After sintering in dilatometer at 1500 °C, the powder was converted to single phase MgAl2O4. The results show that mechanical activation improved the densification behavior of MgAl2O4 sintered specimens, and it reduced the onset temperature for sintering by approx. 100 oC. Based on dilatometer data, powders were subsequently densified at 1450 oC by hot pressing. Almost аll specimens exhibited full density, while sample activated for 30 minutes showed the fastest densification rate.", publisher = "ETRAN", journal = "Science of Sintering", title = "Characterization of MgAl2O4 sintered ceramics", pages = "363-376", volume = "51", number = "4", doi = "10.2298/SOS1904363O", url = "https://hdl.handle.net/21.15107/rcub_dais_6949" }
Obradović, N., Fahrenholtz, W. G., Filipović, S., Corlett, C., Đorđević, P., Rogan, J., Vulić, P. J., Buljak, V.,& Pavlović, V. B.. (2019). Characterization of MgAl2O4 sintered ceramics. in Science of Sintering ETRAN., 51(4), 363-376. https://doi.org/10.2298/SOS1904363O https://hdl.handle.net/21.15107/rcub_dais_6949
Obradović N, Fahrenholtz WG, Filipović S, Corlett C, Đorđević P, Rogan J, Vulić PJ, Buljak V, Pavlović VB. Characterization of MgAl2O4 sintered ceramics. in Science of Sintering. 2019;51(4):363-376. doi:10.2298/SOS1904363O https://hdl.handle.net/21.15107/rcub_dais_6949 .
Obradović, Nina, Fahrenholtz, William G., Filipović, Suzana, Corlett, Cole, Đorđević, Pavle, Rogan, Jelena, Vulić, Predrag J., Buljak, Vladimir, Pavlović, Vladimir B., "Characterization of MgAl2O4 sintered ceramics" in Science of Sintering, 51, no. 4 (2019):363-376, https://doi.org/10.2298/SOS1904363O ., https://hdl.handle.net/21.15107/rcub_dais_6949 .