| 溶胶凝胶法制备Nd2O3改性钛酸钡陶瓷的研究 |
| Study on Preparation of BaTiO3 Ceramics Doped with Nd2O3 by Sol-Gel |
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| 摘要: |
| 关键词: BaTiO3 钕掺杂 溶胶-凝胶法 介电性能 |
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| Abstract: The technological condition for the preparation of BaTiO3 ceramics doped with Nd2O3 by Sol-Gel was deter-mined through orthogonal experiment. When nBa(Ac)2∶nTi(OC4H9)4∶nNd2O3∶nCH3(CH2)2CH2OH∶nH2O=1.00∶1.00∶0.003∶7.30∶37.04, pH=3.5,T=25℃,the light-yellow-transparent-stable solution and thorough transparent gel was generat-ed, the transforming time of solution to gel was 25h. The crystal structure and particle size of BaTiO3 ceramics doped with Nd2O3 were studied by SEM and X-ray respectively, the type of the crystal was tetragonal, the particle size was about 24.7nm. The dielectric constant (ε) and dielectric loss (tanδ) of BaTiO3 ceramics doped with Nd2O3 were determined between 104～106Hz, and the results showed that the dielectric constant was increased obviously, the dielectric loss was decreased clear and the resistivity (ρV) was also decreased noticeably. |
| Keywords: BaTiO3 doped with Nd2O3 Sol-Gel method dielectric characteristics |
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| 郝素娥,韦永德,韦华.溶胶凝胶法制备Nd2O3改性钛酸钡陶瓷的研究[J].无机化学学报,2002,18(6):623-626. |
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