| BaPbO3与BaTiO3多晶态陶瓷缺陷结构对比 | |
| Comparative Study on Defect Structure of BaPbO3 and BaTiO3 Polycrystalline Ceramics | |
| 摘要: | |
| 关键词: BaPbO3 BaTiO3 缺陷化学 平衡电导率 | |
| 基金项目: | |
| Abstract: Based on the results of defect chemistry, a comparative study of the defect structure between BaTiO3 and BaPbO3 was performed. Both BaTiO3 and BaPbO3 are perovskite crystal, while they are considerable different in electrical properties because of the difference of the defect structure. The difference of the electrical properties was discussed in detail from the point of view of the defect structure. Electrons and holes have never been the major defects in BaPbO3 and BaTiO3, respectively. The holes are not the major defects in BaTiO3 until the oxygen activity is low enough. Both of BaPbO3 and BaTiO3 show intrinsic disorder in highly oxygen activity and low oxygen activity, respectively. Oxygen vacancies are the major defects in BaTiO3 all along, while they become the major defects only in the low oxygen activity of BaPbO3. | |
| Keywords: BaPbO3 BaTiO3 defect chemistry equilibrium conductivity | |
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| 陆裕东,王歆,庄志强,刘勇.BaPbO3与BaTiO3多晶态陶瓷缺陷结构对比[J].无机化学学报,2007,23(7):1234-1237. | |
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