X-Ray Photoelectron Spectroscopy of Murataite Ceramics Containing Lanthanides.

Autor:	Maslakov, K. I., Teterin, Yu. A., Stefanovskaya, O. I., Kalmykov, S. N., Teterin, A. Yu., Ivanov, K. E., Danilov, S. S., Yudintsev, S. V., Myasoedov, B. F.
Předmět:	X-ray photoelectron spectroscopy CERAMICS SCANNING electron microscopy
Zdroj:	Radiochemistry; 2021, Vol. 63 Issue 6, p801-810, 10p
Abstrakt:	Ceramic samples with the following composition (wt %): 50 TiO2, 10 CaO, 10 MnO2, 5 Al2O3, 5 Fe2O3, 10 ZrO2, 10 Ln2O3 (Ln = La, Ce, Nd, Ho) or 10 СеО2, were studied by X-ray photoelectron spectroscopy. According to the data of X-ray phase analysis and scanning electron microscopy, they consist of murataite, zirconolite, and perovskite. In smaller quantities there are crichtonite, pyrophanite-ilmenite, and rutile. Ce3+ dominates in cerium samples: the Ce3+ : Ce4+ ratio is 3 : 1 and does not depend on the method of adding the element to the charge—in the form of СeО2 or Се2О3. All ceramics are dominated by Fe3+, its fraction is 92–94 rel %, while manganese is represented only by Mn3+ cations. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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