Oxygen tracer diffusion in BaTiO3 ceramics - Effect of Zr impurity from planetary ball milling

K. Watanabe; I. Sakaguchi; S. Hishita; H. Haneda; N. Ohashi

doi:10.4028/www.scientific.net/KEM.566.262

Oxygen tracer diffusion in BaTiO₃ ceramics - Effect of Zr impurity from planetary ball milling

K. Watanabe, I. Sakaguchi, S. Hishita, H. Haneda, N. Ohashi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

We investigated the effect of Zr impurities on the oxygen diffusion pathway in BaTiO₃ ceramics by using an ion-imaging technique. Zr impurities were introduced into BaTiO₃ ceramics by a planetary ball milling process. The oxygen tracer diffused quickly from the surface up to the grain boundary and then appeared as discontinuous steps at the grain boundary. The results indicate that the grain boundary acted as a blocking layer against oxygen diffusion. The blocking for oxygen diffusion at the grain boundary is thought to originate during the formation and distribution of complex defects between the charged oxygen vacancies and the Ba vacancies near the grain boundary.

Original language	English
Title of host publication	Electroceramics in Japan XV
Publisher	Trans Tech Publications Ltd
Pages	262-265
Number of pages	4
ISBN (Print)	9783037857618
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.566.262
Publication status	Published - 2013
Externally published	Yes
Event	31st Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan Duration: Oct 28 2011 → Oct 29 2011

Publication series

Name	Key Engineering Materials
Volume	566
ISSN (Print)	1013-9826
ISSN (Electronic)	1662-9795

Other

Other	31st Electronics Division Meeting of the Ceramic Society of Japan
Country/Territory	Japan
City	Tokyo
Period	10/28/11 → 10/29/11

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/KEM.566.262

Cite this

Watanabe, K, Sakaguchi, I, Hishita, S, Haneda, H & Ohashi, N 2013, Oxygen tracer diffusion in BaTiO₃ ceramics - Effect of Zr impurity from planetary ball milling. in Electroceramics in Japan XV. Key Engineering Materials, vol. 566, Trans Tech Publications Ltd, pp. 262-265, 31st Electronics Division Meeting of the Ceramic Society of Japan, Tokyo, Japan, 10/28/11. https://doi.org/10.4028/www.scientific.net/KEM.566.262

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author = "K. Watanabe and I. Sakaguchi and S. Hishita and H. Haneda and N. Ohashi",

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AU - Watanabe, K.

AU - Sakaguchi, I.

AU - Hishita, S.

AU - Haneda, H.

AU - Ohashi, N.

PY - 2013

Y1 - 2013

N2 - We investigated the effect of Zr impurities on the oxygen diffusion pathway in BaTiO3 ceramics by using an ion-imaging technique. Zr impurities were introduced into BaTiO3 ceramics by a planetary ball milling process. The oxygen tracer diffused quickly from the surface up to the grain boundary and then appeared as discontinuous steps at the grain boundary. The results indicate that the grain boundary acted as a blocking layer against oxygen diffusion. The blocking for oxygen diffusion at the grain boundary is thought to originate during the formation and distribution of complex defects between the charged oxygen vacancies and the Ba vacancies near the grain boundary.

AB - We investigated the effect of Zr impurities on the oxygen diffusion pathway in BaTiO3 ceramics by using an ion-imaging technique. Zr impurities were introduced into BaTiO3 ceramics by a planetary ball milling process. The oxygen tracer diffused quickly from the surface up to the grain boundary and then appeared as discontinuous steps at the grain boundary. The results indicate that the grain boundary acted as a blocking layer against oxygen diffusion. The blocking for oxygen diffusion at the grain boundary is thought to originate during the formation and distribution of complex defects between the charged oxygen vacancies and the Ba vacancies near the grain boundary.

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