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 / Composites
Source:
Science of Sintering, 2016, 48, 3, 303-315
Publisher:
International Institute for the Science of Sintering, Beograd
TY - 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 . .
