ZrO2-DOPED Y2O3 TRANSPARENT CERAMICS VIA SLIP CASTING AND VACUUM SINTERING

Commercial Y2O3 powder was used to fabricate highly transparent Y2O3 ceramics with the addition of ZrO2 via slip casting and vacuum sintering. The effects of ZrO2 additions on the transparency, grain size and lattice parameter of the Y2O3 ceramics were studied. With the addition of ZrO2, the transpa...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2010-08, Vol.30 (10), p.2139-2143
Main Authors: Jin, L, Zhou, G, Shimai, S, Zhang, J, Wang, S
Format: Article
Language:English
Subjects:
Ceramics
Grain size
Lattice parameters
Slip casting
Transmittance
Vacuum sintering
Yttrium oxide
Zirconium dioxide
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Summary:Commercial Y2O3 powder was used to fabricate highly transparent Y2O3 ceramics with the addition of ZrO2 via slip casting and vacuum sintering. The effects of ZrO2 additions on the transparency, grain size and lattice parameter of the Y2O3 ceramics were studied. With the addition of ZrO2, the transparency of the Y2O3 ceramics increased and the grain size of the Y2O3 ceramics decreased by a cation diffusivity mechanism and the lattice parameter of the Y2O3 ceramics slightly decreased. The highest transmittance of the 5.0 mol% ZrO2-Y2O3 ceramics sintered at 1860 C for 8 h reached 81.7%, which is very close to the theoretical value of Y2O3.
ISSN:0955-2219
DOI:10.1016/j.jeurceramsoc.2010.04.004