Preparation and magnetic properties of Fe/Si/C/N ceramics derived from a polymeric precursor
文献类型：期刊论文
| 作者 | Li, Junping; Zhang, Zhijie; Zheng, Zhimin; Guo, Li; Xu, Guiyun; Xie, Zemin |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2007-08-15 |
| 卷号 | 105期号:4页码:1786-1792 |
| 关键词 | Polysilazane Precursor Pyrolysis Magnetic Ceramics Alpha-fe |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.26161 |
| 英文摘要 | Iron-containing polysilazanes (PSZI) were prepared by the amine displacement reaction along with heat-induced vinyl crosslinking reactions between Fe[N(SiMe(2)Vi)(2)](3) (Vi = -CH=CH2) and polysilazane containing -Si-Vi (PVSZ). The PSZIs were converted into magnetic ceramics by the pyrolysis in N-2. The ceramics produced were investigated by X-ray diffraction, transmission electron microscope and vibrating sample magnetometer at room temperature. It was indicated that alpha-Fe is the only magnetic crystalline embedded in the amorphous Si/C/N-based matrix from 500 to 900 degrees C. Moreover, the sample prepared at 500 degrees C showed few hysteresis at room temperature, consistent with the behavior of superparamagnetic particles, which was confirmed by the zero-field-cooled and field-cooled magnetization measurement. Additionally, the results indicated that the magnetic properties of the ceramics could be tuned by controlling the content of iron and the pyrolysis temperature. This flexibility may be advantageous for some particular magnetic materials applications. (c) 2007 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000247576600009 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61157]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Zhijie |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Adv Polymer Mat, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Junping,Zhang, Zhijie,Zheng, Zhimin,et al. Preparation and magnetic properties of Fe/Si/C/N ceramics derived from a polymeric precursor[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2007,105(4):1786-1792. |
| APA | Li, Junping,Zhang, Zhijie,Zheng, Zhimin,Guo, Li,Xu, Guiyun,&Xie, Zemin.(2007).Preparation and magnetic properties of Fe/Si/C/N ceramics derived from a polymeric precursor.JOURNAL OF APPLIED POLYMER SCIENCE,105(4),1786-1792. |
| MLA | Li, Junping,et al."Preparation and magnetic properties of Fe/Si/C/N ceramics derived from a polymeric precursor".JOURNAL OF APPLIED POLYMER SCIENCE 105.4(2007):1786-1792. |
入库方式： OAI收割
来源：化学研究所
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