Vacuum sintering of highly transparent La1.28Yb1.28Zr2O7.84 ceramic using nanosized raw powders

Highly transparent La1.28Yb1.28Zr2O7.84 ceramic was prepared by vacuum sintering using nanosized raw powders, which were synthesized by a simple solution combustion method using rare earth nitrate as the raw materials. The as-burnt powders were calcined at 1200 ℃ and then ball-milled for 24 h with r...

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Bibliographic Details
Published in:Ceramics international 2018-08, Vol.44 (11), p.12535-12538
Main Authors: Zhao, Wenwen, Zhang, Kuibao, He, Zongsheng, Xue, Jiali, Li, Weiwei, Xie, Dayan, Zhang, Haibin
Format: Article
Language:English
Subjects:
La1.28Yb1.28Zr2O7.84
Pyrochlore
Transmittance
Transparent ceramic
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Summary:Highly transparent La1.28Yb1.28Zr2O7.84 ceramic was prepared by vacuum sintering using nanosized raw powders, which were synthesized by a simple solution combustion method using rare earth nitrate as the raw materials. The as-burnt powders were calcined at 1200 ℃ and then ball-milled for 24 h with resultant particle size of about 60 nm. The two phases, cubic pyrochlore and defective fluorite, are uniformly distributed in the ceramic. La1.28Yb1.28Zr2O7.84 transparent ceramic with the maximum in-line transmittance of 83.9% was successfully prepared at 1850 ℃ for 6 h in a vacuum furnace.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2018.04.049