|
|||||
|
|
Evidence of defect associates in yttrium-stabilized zirconia |
|
| Authors: | Z Wang Z Q Chen J Zhu S J Wang X Guo |
| Institution: | a Department of Physics, Wuhan University, Wuhan, 430072, People's Republic of China b Department of Material Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China |
| Abstract: | After Nb2O5 was added to Y2O3-stabilized ZrO2, the bulk conductivity decreased distinctly. Positron annihilation lifetime and Doppler broadening spectra were measured to study the effects of Nb2O5 on electrical properties of Y2O3-stabilized ZrO2. The result shows that the additions of Nb2O5 can decrease the V2+O concentration and increase the (Y−ZrV2+OY−Zr)0 concentration, which is why bulk conductivity decreases. The additions of Nb2O5 were expected to suppress the formation of defect associates, however, only adverse experimental results were found in the present work. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |