Polarization-Assisted Surface Engineering for Low Temperature Degradation-Proof in Yttria-Stabilized Zirconia Ceramics
Polarization-Assisted Surface Engineering for Low Temperature Degradation-Proof in Yttria-Stabilized Zirconia Ceramics
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氧化钇稳定氧化锆陶瓷防低温降解的偏振辅助表面工程
DOI:
10.1016/j.jascer.2015.02.002
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
Toshinori Okura and Kimihiro Yamashita
中科院分区:
文献类型:
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作者:
Naohiro Horiuchi;Yu Tsuchiya;Norio Wada;Kosuke Nozaki;Miho Nakamura;Akiko Nagai;Toshinori Okura and Kimihiro Yamashita
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.