Fabrication and magnetic properties of cobalt-dispersed-alumina composites
文献类型：期刊论文
| 作者 | Shi, Xiaomei; Pan, Yubai; Guo, Jingkun |
| 刊名 | Ceramics international
 |
| 出版日期 | 2007 |
| 卷号 | 33期号:8页码:1509-1513 |
| ISSN号 | 0272-8842 |
| 关键词 | Hot-pressing Grain size Magnetic properties Microstructure |
| DOI | 10.1016/j.ceramint.2006.05.017 |
| 通讯作者 | Pan, yubai(ybpan@mail.sic.ac.cn) |
| 英文摘要 | High-density cobalt-dispersed-alumina (co/al2o3) composites were successfully prepared by hot-pressing of alumina-cobalt composite powders with fine cobalt similar to 30 nm in diameter. the nanocomposite powders were prepared by co-deposited processing of al3+ and co2+, followed by calcination and selective reduction. the phase composition of co/al2o3 composites were alpha-al2o3, fec-co and a little amount of hcp-co. microstructural investigations revealed that submicron-sized cobalt particles were dispersed homogeneously at alumina grain boundaries, forming intergranular composites. meanwhile growth and coalescence of cobalt particles occurred with increasing co-content. the ferromagnetic properties of the composites were measured, because of the magnetic dispersions, which indicated a functional value of co/al2o3 composites. the effects of grain size and the residual stresses on magnetic properties for co/al2o3 system were discussed in detail. (c) 2006 elsevier ltd and techna group s.r.l. all rights reserved. |
| WOS关键词 | MECHANICAL-PROPERTIES ; NANOCOMPOSITES ; NICKEL |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Ceramics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000250424800016 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383823 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Pan, Yubai |
| 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, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Xiaomei,Pan, Yubai,Guo, Jingkun. Fabrication and magnetic properties of cobalt-dispersed-alumina composites[J]. Ceramics international,2007,33(8):1509-1513. |
| APA | Shi, Xiaomei,Pan, Yubai,&Guo, Jingkun.(2007).Fabrication and magnetic properties of cobalt-dispersed-alumina composites.Ceramics international,33(8),1509-1513. |
| MLA | Shi, Xiaomei,et al."Fabrication and magnetic properties of cobalt-dispersed-alumina composites".Ceramics international 33.8(2007):1509-1513. |
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来源：中国科学院大学
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