KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Relaxation dielectric enhancement of barium strontium titanate ceramics by trace doping sodium niobate | |
Liu, Xinxin1,2; Zhai, Yunling1,2; Xie, Xiong1,3; Zhou, Rui1,2; Li, Xu1,3; Liu, Shuangyi1,2 
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| 2020-09-25 | |
| 摘要 | Barium strontium titanate (BST)-based complex ceramics are lead-free high performance ferroelectric or relaxor materials for applying on electronics and energy storages. Here, based on Ba0.7Sr0.3TiO3, a giant dielectric enhancement is achieved by trace sodium niobate doping. The dielectric constants and strengths are enhanced up to 13850 and 330 kV/cm with acceptable loss behaviours. In combination with structure and property characterisations, such great enhancements can be attributed to disorderly substitutions with resulted relaxor phase transition and interfacial couples. Thus, the present study not only presents an effective method of enhancing the dielectric properties of BST-based materials but also a novel way to achieve lead-free relaxors. |
| 关键词 | Anti-ferroelectricity spark plasma sintering lead-free ceramics dielectric properties |
| DOI | 10.1080/10667857.2020.1821454 |
| 发表期刊 | MATERIALS TECHNOLOGY
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| ISSN | 1066-7857 |
| 页码 | 7 |
| 通讯作者 | Liu, Shuangyi(liushuangyi@cigit.ac.cn) |
| 收录类别 | SCI |
| WOS记录号 | WOS:000572214900001 |
| 语种 | 英语 |
