X-Ray Photoelectron Spectroscopy of Murataite Ceramics Containing Lanthanides

Autor: K. I. Maslakov, Yu. A. Teterin, O. I. Stefanovskaya, S. N. Kalmykov, A. Yu. Teterin, K. E. Ivanov, S. S. Danilov, S. V. Yudintsev, B. F. Myasoedov
Rok vydání: 2021
Předmět:
Zdroj: Radiochemistry. 63:801-810
ISSN: 1608-3288
1066-3622
Popis: Abstract 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.
Databáze: OpenAIRE
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