Journal of the Ceramic Society of Japan
Technical report
Characterization of oxygen defect and zinc segregation in the dense tin dioxide ceramics added with zinc oxide
Isao SAKAGUCHINaoya SAKAMOTOMinako HASHIGUCHIHisayoshi YURIMOTOShunichi HISHITANaoki OHASHI
Author information
JOURNALS FREE ACCESS

Volume 121 (2013) Issue 1419 Pages 956-959

Details
Download PDF (1031K) Contact us
Abstract

We investigated the effect of zinc oxide addition for the defects in the dense SnO2 ceramics. Cathode and photoluminescence properties revealed the luminescence originated to oxygen vacancies in SnO2 grains and the presence of non-radiative defect at the grain boundaries. The oxygen diffusion profile showed that the oxygen diffusion was controlled by the limited process at the surface and uniform concentration of 18O at the grain boundaries inner side of sample. This sample exhibited a low Zn concentration in grains and a high Zn concentration at grain boundaries. We conclude that segregation of Zn at grain boundaries prevents SnO2 from decomposing at high temperatures, enabling dense SnO2 ceramics to be obtained.

Information related to the author
© 2013 The Ceramic Society of Japan
Previous article
feedback
Top