In this paper, the dielectric relaxation process in 11 mol% yttria-stabilized zirconia (YSZ) crystals were studied by using thermally stimulated depolarization current (TSDC) method and the origin responsible for dielectric polarization was discussed. TSDC measurements were performed in the temperature range of 173-500 K. By fitting the measured data with theoretical TSDC curves of dipole polarization, four peaks, with the activation energy of 0.46 eV, 0.99 eV, 1.15 eV, and 2.10 eV respectively, were observed. The origin for the peaks was attributed to the different migration paths of oxygen vacancies.
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Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
Zhang, Han
Lu, Jie
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Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
Lu, Jie
Luo, Lirong
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China Univ Geosci, Fac Mat Sci & Chem, Minist Educ, Engn Res Ctr Nanogeo Mat, Wuhan 430074, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
Luo, Lirong
Zhao, Xiaofeng
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Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
Zhao, Xiaofeng
Guo, Fangwei
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Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
Guo, Fangwei
Xiao, Ping
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Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R ChinaShanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai, Peoples R China
机构:
Yuan Ze Univ, Yuan Ze Fuel Cell Ctr, Dept Chem Engn & Mat Sci, Tao Yuan 320, TaiwanYuan Ze Univ, Yuan Ze Fuel Cell Ctr, Dept Chem Engn & Mat Sci, Tao Yuan 320, Taiwan
Hung, I-Ming
Fung, Kuan-Zong
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Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, TaiwanYuan Ze Univ, Yuan Ze Fuel Cell Ctr, Dept Chem Engn & Mat Sci, Tao Yuan 320, Taiwan