Abstract
The forming mechanism of Sm2Zr2O7 prepared by solid reaction was studied by X-Ray diffraction method. The results show that the gradual substitution of Sm3+ for Zr4+ site began from 1000°C. and was ended basically up to 1400°C. The solid solution reaction between Sm2O3 and ZrO2 took place in the range of 1200°C-1300°C, resulting in forming Sm2Zr2O7 with pyrochlore structure. The reaction last up to 1500°C, then was ended completely. When the temperature was over 1500°C, Sm2Zr2O7 crystal grew up gradually, and finally an ideal Sm2Zr2O7 crystal was obtained. No other intermediate phases were found in the whole process.
Original language | English |
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Pages (from-to) | 533-536 |
Number of pages | 4 |
Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
Volume | 36 |
Issue number | SUPPL. 2 |
Publication status | Published - Aug 2007 |
Keywords
- Forming mechanism
- Oxygen vacancy
- SmZrO
- Solid solutions
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Zhang, H., Xu, Q., Wang, F., & Liu, L. (2007). Analysis of Sm2Zr2O7 forming mechanism by X-ray diffraction. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 36(SUPPL. 2), 533-536.