Title

Influence of precursor dispersity and agglomeration on mechanical characteristics of ZrO2-Ce2O3 and ZrO2-Y2O3-Ce2O3 ceramics

Authors

Authors

V. G. Konakov; S. Seal; E. N. Solovieva; D. A. Ivanov-Pavlov; M. M. Pivovarov; S. N. Golubev;A. V. Shorochov

Comments

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Abbreviated Journal Title

Rev. Adv. Mater. Sci.

Keywords

Nanoscience & Nanotechnology; Materials Science, Multidisciplinary

Abstract

Powder precursors of ZrO2-Ce2O3 and ZrO2-Y2O3-Ce2O3 systems were synthesized by sol-gel method. Dispersity of the powders depended on concentrations of starting reagents and synthesis conditions. To characterize the powder dispersity and aggregated state, electron microscopy and laser scattering particle size distribution analysis were used. From the powder precursors ceramic samples were prepared and their mechanical characteristics were studied by three points bending method at 1000 degrees C. It was revealed that bending strength - particle size curve for the system of ZrO2-Ce2O3 has a pronounced maximum. This phenomenon is explained by a change in cerium valence depending on powder precursor agglomerate size.

Journal Title

Reviews on Advanced Materials Science

Volume

16

Issue/Number

1-2

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

96

Last Page

101

WOS Identifier

WOS:000252262700008

ISSN

1606-5131

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