Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1473321 | Journal of Asian Ceramic Societies | 2015 | 4 Pages |
Abstract
This study demonstrates that electrical polarization inhibited low-temperature degradation (LTD) of yttria-stabilized zirconia (YSZ). Electrical polarizations, which were confirmed by the thermally stimulated depolarization current (TSDC) measurements, were induced by an applied dc voltage. The induced polarizations caused hydrophilic surfaces. The more hydrophilic the surfaces became, the more resistant they became to degradation. We propose a mechanism of LTD inhibition in which the electric repulsive force induced by the polarizations prevented the invasion of water into the inner part of the YSZ.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Naohiro Horiuchi, Yu Tsuchiya, Norio Wada, Kosuke Nozaki, Miho Nakamura, Akiko Nagai, Toshinori Okura, Kimihiro Yamashita,