| Nd(OH)3-Co3O4-Nb2O5纳米复合掺杂和传统复合掺杂BaTiO3基陶瓷性能的对比研究 |
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| 引用本文： | 何飞刚. Nd(OH)3-Co3O4-Nb2O5纳米复合掺杂和传统复合掺杂BaTiO3基陶瓷性能的对比研究[J]. 云南大学学报(自然科学版), 2011, 33(4): 434-438 |
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| 作者姓名： | 何飞刚 |
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| 作者单位： | 陕西教育学院化学系; |
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| 基金项目： | 陕西省科技计划项目资助(2009JM2014); 陕西教育学院自然科学基金项目资助(10KJ018) |
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| 摘 要： | 制备了Nd(OH)3,Co3O4和Nb2O5纳米粒子以及Nd(OH)3-Co3O4-Nb2O5纳米复合掺杂和传统复合掺杂BaTiO3基陶瓷,研究了掺杂剂的粒径对BaTiO3基陶瓷的微观形貌和介电性能的影响,并对纳米掺杂和传统掺杂BaTiO3基陶瓷的性能进行了比较.结果表明,掺杂剂的粒度对BaTiO3基介电陶瓷的微观形貌和介电性能有较明显的影响,特别是纳米复合氧化物掺杂能够促进烧结中晶粒"芯-壳"结构的形成,能有效地抑制晶粒长大并形成细晶结构,从而显著地降低烧结温度,提高介电常数、降低介电损耗,改善BaTiO3基陶瓷的温度稳定性.
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| 关 键 词： | 单分散纳米粒子 复合掺杂 BaTiO3 |
| 收稿时间： | 2010-11-07 |
The comparative study of Nd(OH)_3-Co_3O_4-Nb_2O_5 nano-doped and traditional-doped barium titanate ceramics |
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| HE Fei-gang. The comparative study of Nd(OH)_3-Co_3O_4-Nb_2O_5 nano-doped and traditional-doped barium titanate ceramics[J]. Journal of Yunnan University(Natural Sciences), 2011, 33(4): 434-438 |
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| Authors: | HE Fei-gang |
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| Affiliation: | HE Fei-gang (Department of Chemistry,Shannxi Institute of Education,Xi'an 710061,China) |
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| Abstract: | The monodisperse Nd(OH)3,Co3O4,Nb2O5 and nano complexly doped BaTiO3 ceramics was prepared and the effect of particle size of nano-dopant on the microstructure and dielectric properties of nano-doped BaTiO3 was investigated.Finally,nano-doped BaTiO3 and doping process were compared with the traditional.The results show that the dopant particle size on the dielectric BaTiO3-based ceramics microstructure and dielectric properties have a more significant impact,especially in nano-composite doped can promote th... |
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| Keywords: | monodispersed nanoparticles complexly doped barium titanate |
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