Stabilization of ZrO2 Concentrate by Rare Earth Elements (La, Nd, Pr, Ce)
- Авторы: Kul’met’eva V.1, Porozova S.1, Gilev V.1, Vokhmyanin D.1
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Учреждения:
- FGBOU VO Perm’ National research Polytechnic University
- Выпуск: Том 59, № 6 (2019)
- Страницы: 599-605
- Раздел: Article
- URL: https://journals.rcsi.science/1083-4877/article/view/249174
- DOI: https://doi.org/10.1007/s11148-019-00280-7
- ID: 249174
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Аннотация
The effect of annealing and sintering temperature on phase transformation of ZrO2 is studied in relation to REE concentrate content using differential thermal analysis, Raman spectroscopy and x-ray diffraction. It is shown that introduction of REE concentrate in an amount of more than 15 wt.% stabilizes ZrO2 tetragonal phase solely at below 1200 °C. A further increase in temperature leads to destabilization of the tetragonal phase with formation of the monoclinic and cubic phases of the Ln2Zr2O7 type isostructural compounds (n = La, Nd, ...) with a pyrochlore structure.
Об авторах
V. Kul’met’eva
FGBOU VO Perm’ National research Polytechnic University
Автор, ответственный за переписку.
Email: keramik@pm.pstu.ac.ru
Россия, Perm’
S. Porozova
FGBOU VO Perm’ National research Polytechnic University
Email: keramik@pm.pstu.ac.ru
Россия, Perm’
V. Gilev
FGBOU VO Perm’ National research Polytechnic University
Email: keramik@pm.pstu.ac.ru
Россия, Perm’
D. Vokhmyanin
FGBOU VO Perm’ National research Polytechnic University
Email: keramik@pm.pstu.ac.ru
Россия, Perm’