Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10625796 | Ceramics International | 2014 | 7 Pages |
Abstract
In the present work, nanocrystallite ZrO2 was synthesized by calcining zirconium (IV) acetylacetonate. X-ray diffraction results show the existence of tetragonal phase even when the nanocrystallite size reached ~47Â nm. The presence of amorphous carbon was identified by Raman analysis while the Zr-C bonding was confirmed by X-ray photoelectron spectroscopy analysis. Transmission electron microscopy showed no hard-agglomeration in the samples treated at high temperatures. These results indicated that carbon has influence on the phase stability of t-ZrO2 in two aspects: the amorphous carbon creates a reducing atmosphere, meanwhile carbon atoms bonded with zirconium atoms act as a stabilizer.
Related Topics
Physical Sciences and Engineering
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Authors
Huimin Xiang, Xinpo Lu, Jingjing Li, Jixin Chen, Yanchun Zhou,