Structural characterization of Pu-bearing murataite ceramic

Phase composition of the murataite ceramic containing 10 wt.% PuO 2 and oxidation states of the elements composing this ceramic have been studied. The ceramic is composed of three murataite polytypes with five-, eight-, and three-fold fluorite unit cell forming core, intermediate zone and rim of the...

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Bibliographic Details
Published in:Journal of alloys and compounds 2007-10, Vol.444, p.606-609
Main Authors: Yudintsev, S.V., Stefanovsky, S.V., Nikonov, B.S., Maslakov, K.I., Ptashkin, A.G.
Format: Article
Language:English
Subjects:
Ceramics
Scanning electron microscopy (SEM)
Transmission electron microscopy (TEM)
X-ray diffraction
X-ray photoelectron spectroscopy
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Summary:Phase composition of the murataite ceramic containing 10 wt.% PuO 2 and oxidation states of the elements composing this ceramic have been studied. The ceramic is composed of three murataite polytypes with five-, eight-, and three-fold fluorite unit cell forming core, intermediate zone and rim of the murataite grains and minor crichtonite. Manganese, iron, and plutonium exist mainly in di-, tri-, and tetravalent forms, respectively.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.10.129