Effect of v2o5 doping on the microstructure and local composition of textured sr0.4ba0.6nb2o6 ceramics
文献类型：期刊论文
| 作者 | Wang, Xian-Hao; Gu, Hui; Huang, Qing-Wei; You, Li-Ping |
| 刊名 | International journal of materials research
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 98期号:3页码:228-234 |
| 关键词 | Strontium barium niobate Liquid-phase sintering Textured microstructure Grain boundary film Analytical electron microscopy |
| ISSN号 | 1862-5282 |
| 通讯作者 | Gu, hui(gu@mail.sic.ac.cn) |
| 英文摘要 | A comparison of phases and the microstructures of textured sr0.4ba0.6nb2o6 ceramics without and with v2o5 addition was carried out using transmission and analytical electron microscopy. the dopant was not found in sr0.4ba0.6nb2o6 grains but in the inter-granular regions, including both grain boundary and second phase. grain boundaries in the sample without v2o5 are clean, but those in the v2o5-doped sample exhibit a variety of structures, with and without an amorphous film of variable thickness. in general the vanadium excess follows the same trend of film width, while the sr excess is generally negative and the ba excess is positive, suggesting that the amorphous films at grain boundaries are rich in v and ba and deficient in nb and sr. the second phase was determined as ba3v4o13 phase containing small amounts of sr and nb. such v- and ba-rich inter-granular liquids promoted the densification and texturing, and affected the dielectric constant at low frequency but not the curie temperature. |
| WOS关键词 | BARIUM-NIOBATE CERAMICS ; TEMPLATED GRAIN-GROWTH ; SR0.53BA0.47NB2O6 CERAMICS ; FABRICATION |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000245587700012 |
| 出版者 | CARL HANSER VERLAG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382491 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Gu, Hui |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 2005, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 3.Peking Univ, Lab Electron Microscopy, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xian-Hao,Gu, Hui,Huang, Qing-Wei,et al. Effect of v2o5 doping on the microstructure and local composition of textured sr0.4ba0.6nb2o6 ceramics[J]. International journal of materials research,2007,98(3):228-234. |
| APA | Wang, Xian-Hao,Gu, Hui,Huang, Qing-Wei,&You, Li-Ping.(2007).Effect of v2o5 doping on the microstructure and local composition of textured sr0.4ba0.6nb2o6 ceramics.International journal of materials research,98(3),228-234. |
| MLA | Wang, Xian-Hao,et al."Effect of v2o5 doping on the microstructure and local composition of textured sr0.4ba0.6nb2o6 ceramics".International journal of materials research 98.3(2007):228-234. |
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来源：中国科学院大学
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