Low-temperature synthesis of CdCu3Ti4O12 powders with high dielectric permittivities
| Autor: | Yichen Xiang, Zupei Yang, Di Wu, Zhanhui Peng, Pengfei Liang, Bi Chen, Xiaolian Chao, Hui Peng |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Materials science Process Chemistry and Technology Sintering 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology 01 natural sciences Grain size Surfaces Coatings and Films Electronic Optical and Magnetic Materials Grain shape visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material Molten salt 0210 nano-technology Perovskite (structure) |
| Zdroj: | Ceramics International. 45:11899-11904 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2019.03.075 |
| Popis: | The molten salt method was adopted in this work to synthesize CdCu3Ti4O12 precursor powders and was found capable of notably reducing the sintering temperature. It was also found that the grain size gradually increases and the grain shape changes from spherical to cubic with increasing proportions of molten salt. The optimal sintering conditions were found to be at approximately 730 °C with the addition of 20% molten salt. After further sintering at 975 °C, the obtained perovskite ceramics exhibited a high dielectric constant at low frequencies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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