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| Preparation and densification of BaTiO3 nanopowder by sol—gel autoigniting synthesis | |
| 引用本文： | FangrenHu ChangchunGe 等. Preparation and densification of BaTiO3 nanopowder by sol—gel autoigniting synthesis[J]. 北京科技大学学报(英文版), 2002, 9(3): 188-192 |
| 作者姓名： | FangrenHu ChangchunGe 等 |
| 作者单位： | [1]InstituteofPhysics,ChineseAcademyofSciences,Beijing100080,China [2]MaterialsScienceandEngineeringSchool,UniversityofScienceandTechnologyBeijing,Beijing100083,China |
| 摘 要： | Autoigniting synthesis of gel from Ba(NO3)2,TiO(NO3)2 and C6H8O7.H2O aqueous solution was investigated at an initial temperature of 600℃ and tetragonal BaTiO3 nanopowder with particle size of 80nm was prepared.It is indicated that the specific surface area of the combustion product before and after calcination is 14.74m^2/g and 12.49m^2/g,respectively.The combustion wave is composed of solid phase reaction zone and gaseous phase flame reaction zone.The combustion flame temperature is 1123K derived from thermo couple measurement.The characteristics and densification behavior of the sol-gel autoigniting synthesized BaTiO3 nanopowder were in vestigated. |
| 关 键 词： | 钛酸钡 纳米粉末 制备 增浓 |
Preparation and densification of BaTiO3 nanopowder by sol-gel autoigniting synthesis |
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| Fangren Hu,Lin Li,Dongning Zheng,Changchun Ge. Preparation and densification of BaTiO3 nanopowder by sol-gel autoigniting synthesis[J]. Journal of University of Science and Technology Beijing, 2002, 9(3): 188-192 | |
| Authors: | Fangren Hu Lin Li Dongning Zheng Changchun Ge |
| Affiliation: | 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China 2. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 3. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | Autoigniting synthesis of gel from Ba(NO3)2, TiO(NO3)2 and C6H8O7H2O aqueous solution was investigated at an initial temperature of 600℃ and tetragonal BaTiO3 nanopowder with particle size of 80nm was prepared. It is indicated that the specific surface area of the combustion product before and after calcination is 14.74 m2/g and 12.49 m2/g, respectively. The combustion wave is composed of solid phase reaction zone and gaseous phase flame reaction zone. The combustion flametemperature is 1 123 K derived from thermocouple measurement. The characteristics and densification behavior of the sol-gel autoigniting synthesized BaTiO3 nanopowder were investigated. |
| Keywords: | sol-gel autoigniting synthesis barium titanate densification |
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