Investigation on the anti-reduction mechanism of Ti4+ in high dielectric constant system Ca0.9La0.067TiO3 by doping with Al2O3
文献类型：期刊论文
| 作者 | Peng, Haiyi; Ren, Haishen; Dang, Mingzhao; Zhang, Yi; Yao, Xiaogang; Lin, Huixing |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:6页码:6527 |
| 关键词 | Sintering X-ray methods Dielectric properties Perovskites Anti-reduction |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2018.01.053 |
| 英文摘要 | Ca0.9La0.067TiO3 (abbreviated as CLT) ceramics doped with different amount of Al2O3 were prepared via the solid state reaction method. The anti-reduction mechanism of Ti4+ in CLT ceramics was carefully investigated. X-ray diffraction (XRD) was used to analyze the phase composition and lattice structure. Meanwhile, the Rietveld method was taken to calculate the lattice parameters. X-ray photoelectron spectroscopy (XPS) was employed to study the valence variation of Ti ions in CLT ceramics without and with Al2O3. The results showed that Al3+ substituted for Ti4+ to form solid solution and the solid solubility limit of Al3+ is near 1.11 mol%. Furthermore, the reduction of Ti4+ in CLT ceramics was restrained by acceptor doping process and the Q x f values of CLT ceramics were improved significantly. The CLT ceramic doped with 1.11 mol% Al2O3 exhibited good microwave dielectric properties: epsilon(r) = 141, Q x f = 6848 GHz, tau(f) = 576 ppm/degrees C. |
| 学科主题 | Materials Science, Ceramics |
| WOS记录号 | WOS:000427215100095 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24997]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | Chinese Acad Sci, Informat Mat & Devices Res Ctr, Shanghai Inst Ceram, 1295 Dingxi Rd, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Haiyi,Ren, Haishen,Dang, Mingzhao,et al. Investigation on the anti-reduction mechanism of Ti4+ in high dielectric constant system Ca0.9La0.067TiO3 by doping with Al2O3[J]. CERAMICS INTERNATIONAL,2018,44(6):6527, 6532. |
| APA | Peng, Haiyi,Ren, Haishen,Dang, Mingzhao,Zhang, Yi,Yao, Xiaogang,&Lin, Huixing.(2018).Investigation on the anti-reduction mechanism of Ti4+ in high dielectric constant system Ca0.9La0.067TiO3 by doping with Al2O3.CERAMICS INTERNATIONAL,44(6),6527. |
| MLA | Peng, Haiyi,et al."Investigation on the anti-reduction mechanism of Ti4+ in high dielectric constant system Ca0.9La0.067TiO3 by doping with Al2O3".CERAMICS INTERNATIONAL 44.6(2018):6527. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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