Low temperature synthesis of ultrafine alpha-al2o3 powder by a simple aqueous sol-gel process
文献类型：期刊论文
| 作者 | Li, J; Pan, YB; Xiang, CS; Ge, QM; Guo, JK |
| 刊名 | Ceramics international
 |
| 出版日期 | 2006 |
| 卷号 | 32期号:5页码:587-591 |
| 关键词 | Al2o3 Powder preparation Aqueous sol-gel process |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2005.04.015 |
| 通讯作者 | Li, j(lijiang@mail.sic.ac.cn) |
| 英文摘要 | Ultratine alpha-al2o3 was synthesized by a simple aqueous sol-gel method using a citrate polymeric precursor derived from aluminum nitrate and citric acid mixed solution. the thermal decomposition of the precursor and subsequent formation of alpha-al2o3 was investigated by x-ray diffractometer (xrd), field emission transmission electron microscope (fetem), thermogravimetry-differential scanning calorimetry (tg-dsc)-mass spectra (ms) and fourier transform infrared spectra (ftir). the molar ratio of citric acid to metal nitrate (un), which played an important role in phase transition and morphology controlling of alumina, was also investigated. a single-phase alpha-al2o3 powder resulted after heat treatment at similar to 1000 degrees c. the increasing molar ratio of c/n was found to be in favor of gamma- to alpha-al2o3 phase transition, whereas the precursor with c/n = 1 yielded a relatively well dispersed ultrafine alpha-al2o3 powder with particle size of similar to 200 nm. (c) 2005 elsevier ltd and techna group s.r.l. all rights reserved. |
| WOS关键词 | NANOCRYSTALLINE ALPHA-AL2O3 ; ALUMINA POWDERS ; ALPHA-ALUMINA ; TRANSFORMATION |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Ceramics |
| 语种 | 英语 |
| WOS记录号 | WOS:000237841700018 |
| 出版者 | ELSEVIER SCI LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378534 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, J |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, J,Pan, YB,Xiang, CS,et al. Low temperature synthesis of ultrafine alpha-al2o3 powder by a simple aqueous sol-gel process[J]. Ceramics international,2006,32(5):587-591. |
| APA | Li, J,Pan, YB,Xiang, CS,Ge, QM,&Guo, JK.(2006).Low temperature synthesis of ultrafine alpha-al2o3 powder by a simple aqueous sol-gel process.Ceramics international,32(5),587-591. |
| MLA | Li, J,et al."Low temperature synthesis of ultrafine alpha-al2o3 powder by a simple aqueous sol-gel process".Ceramics international 32.5(2006):587-591. |
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来源：中国科学院大学
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