Mechanochemical synthesis and conducting properties of nanostructured rhombohedral scandia stabilized zirconia ceramics

Studies of mechanochemical powders and sintered ceramics in scandia stabilized zirconia system have been carried out by means of XRD technique, Raman spectroscopy and SIMS. Nanostructured single phase ceramics of Zr 0.88Sc 0.1Ce 0.01Y 0.01O 1.955 composition with the room-temperature rhombohedral st...

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Bibliographic Details
Published in:	Journal of alloys and compounds Vol. 483; no. 1; pp. 535 - 539
Main Authors:	Zyryanov, V.V., Uvarov, N.F., Sadykov, V.A., Ulihin, A.S., Kostrovskii, V.G., Ivanov, V.P., Titov, A.T., Paichadze, K.S.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Kidlington Elsevier B.V 26-08-2009 Elsevier
Subjects:	Ionic conduction Mechanochemical synthesis Nanostructured materials X-Ray diffraction Zirconia Zirconia Ionic conduction X-Ray diffraction Nanostructured materials Mechanochemical synthesis
Online Access:	Get full text
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Summary:	Studies of mechanochemical powders and sintered ceramics in scandia stabilized zirconia system have been carried out by means of XRD technique, Raman spectroscopy and SIMS. Nanostructured single phase ceramics of Zr 0.88Sc 0.1Ce 0.01Y 0.01O 1.955 composition with the room-temperature rhombohedral structure caused by ordering of oxygen vacancies possesses excellent mechanical strength and unusual conductivity properties with E b ∼ E gb . Decreased level of conductivity at T ∼ 1000 K was explained by incomplete stabilization of cubic phase and admixtures of silica and alumina present in starting ZrO 2 reagent of technical grade.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2008.07.229