Analysis of Sm2Zr2O7 forming mechanism by X-ray diffraction

Hongsong Zhang*, Qiang Xu, Fuchi Wang, Ling Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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 languageEnglish
Pages (from-to)533-536
Number of pages4
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume36
Issue numberSUPPL. 2
Publication statusPublished - 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.