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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Stabilization of the cubic phase in zirconia-scandia by niobium oxide addition

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Grosso, R. L. [1] ; Muccillo, R. [1] ; Muccillo, E. N. S. [1]
Total Authors: 3
[1] Energy & Nucl Res Inst IPEN, BR-05422970 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Materials Letters; v. 134, p. 27-29, NOV 1 2014.
Web of Science Citations: 7

Zirconia-10 mol% scandia (ScSZ) with additions of x mol% niobium oxide (x=0, 0.25, 0.5 and 1) nanoparticles were chemically synthesized. The introduction of niobium as a codopant is proposed for stabilization of the cubic phase of zirconia-scandia solid electrolyte. Several compositions were synthesized by a solution method to ensure chemical homogeneity. The thermal analysis results reveal that the addition of niobium oxide reduced the crystallization temperature of zirconia. The morphology of the calcined powders consists of agglomerated nanoparticles with 6.5 nm mean crystallite size. In situ high-temperature X-ray diffraction evidenced the full stabilization of the cubic phase of zirconia-10 mol% scandia containing 0.5 mol% niobium oxide content. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 12/03319-5 - Preparation and characterization of scandia-stabilized zirconia containing additives
Grantee:Robson Lopes Grosso
Support Opportunities: Scholarships in Brazil - Doctorate