Synthesis of Highly Porous Al2O3-YAG Composite Ceramics
Abstract
Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot 6H(2)O. Al2O3 preforms with porosity varying from 26 to 50% were obtained after sintering at temperature ranging from 1100 to 1500 degrees C. Sintering of the infiltrated Al2O3 preforms led to formation of YAG particles due to reaction between Y2O3 and Al2O3 at high temperature. It was found that variation of porosity of alumina preforms and sintering temperature is an effective way to fabricate Al2O3-YAG composite with an unusual combination of properties. Open porosity was in the range 15-35%, specific surface was 0.6-6.1 m(2)/g, pore size was 150-900 nm whereas compressive strength was from 50 to 250 MPa. The effect of sintering temperature on YAG formation and phase composition were investigated using X-ray diffractometry whereas microstructure of the composite was an...alysed by scanning electron microscopy.
Keywords:
Al2O3-YAG / Porous ceramics / CompositesSource:
Science of Sintering, 2016, 48, 3, 303-315Publisher:
- International Institute for the Science of Sintering, Beograd
Funding / projects:
DOI: 10.2298/SOS1603303E
ISSN: 0350-820X
WoS: 000393312300004
Scopus: 2-s2.0-85012255186
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Institution/Community
IHTMTY - JOUR AU - Egelja, Adela AU - Majstorovic, Jelena AU - Vukovic, Nikola AU - Stanković, Miroslav AU - Bucevac, Dusan PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2046 AB - Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot 6H(2)O. Al2O3 preforms with porosity varying from 26 to 50% were obtained after sintering at temperature ranging from 1100 to 1500 degrees C. Sintering of the infiltrated Al2O3 preforms led to formation of YAG particles due to reaction between Y2O3 and Al2O3 at high temperature. It was found that variation of porosity of alumina preforms and sintering temperature is an effective way to fabricate Al2O3-YAG composite with an unusual combination of properties. Open porosity was in the range 15-35%, specific surface was 0.6-6.1 m(2)/g, pore size was 150-900 nm whereas compressive strength was from 50 to 250 MPa. The effect of sintering temperature on YAG formation and phase composition were investigated using X-ray diffractometry whereas microstructure of the composite was analysed by scanning electron microscopy. PB - International Institute for the Science of Sintering, Beograd T2 - Science of Sintering T1 - Synthesis of Highly Porous Al2O3-YAG Composite Ceramics VL - 48 IS - 3 SP - 303 EP - 315 DO - 10.2298/SOS1603303E ER -
@article{ author = "Egelja, Adela and Majstorovic, Jelena and Vukovic, Nikola and Stanković, Miroslav and Bucevac, Dusan", year = "2016", abstract = "Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot 6H(2)O. Al2O3 preforms with porosity varying from 26 to 50% were obtained after sintering at temperature ranging from 1100 to 1500 degrees C. Sintering of the infiltrated Al2O3 preforms led to formation of YAG particles due to reaction between Y2O3 and Al2O3 at high temperature. It was found that variation of porosity of alumina preforms and sintering temperature is an effective way to fabricate Al2O3-YAG composite with an unusual combination of properties. Open porosity was in the range 15-35%, specific surface was 0.6-6.1 m(2)/g, pore size was 150-900 nm whereas compressive strength was from 50 to 250 MPa. The effect of sintering temperature on YAG formation and phase composition were investigated using X-ray diffractometry whereas microstructure of the composite was analysed by scanning electron microscopy.", publisher = "International Institute for the Science of Sintering, Beograd", journal = "Science of Sintering", title = "Synthesis of Highly Porous Al2O3-YAG Composite Ceramics", volume = "48", number = "3", pages = "303-315", doi = "10.2298/SOS1603303E" }
Egelja, A., Majstorovic, J., Vukovic, N., Stanković, M.,& Bucevac, D.. (2016). Synthesis of Highly Porous Al2O3-YAG Composite Ceramics. in Science of Sintering International Institute for the Science of Sintering, Beograd., 48(3), 303-315. https://doi.org/10.2298/SOS1603303E
Egelja A, Majstorovic J, Vukovic N, Stanković M, Bucevac D. Synthesis of Highly Porous Al2O3-YAG Composite Ceramics. in Science of Sintering. 2016;48(3):303-315. doi:10.2298/SOS1603303E .
Egelja, Adela, Majstorovic, Jelena, Vukovic, Nikola, Stanković, Miroslav, Bucevac, Dusan, "Synthesis of Highly Porous Al2O3-YAG Composite Ceramics" in Science of Sintering, 48, no. 3 (2016):303-315, https://doi.org/10.2298/SOS1603303E . .