| Title | Thermal stability of Fe2O3 nanowires |
| Authors | Zhang, Xiongjian Han, Qin Dong, Zhao Xu, Yingying Zhang, Han |
| Affiliation | Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. |
| Keywords | Fe2O3 nanowire thermal stability structural transformation ALPHA-FE2O3 NANOWIRES MAGNETIC-PROPERTIES ALIGNED ARRAYS IRON-OXIDES GROWTH GAMMA-FE2O3 SILICA TI |
| Issue Date | 2008 |
| Publisher | journal of materials science technology |
| Citation | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY.2008,24,(4),594-596. |
| Abstract | The thermal stability of alpha-Fe2O3 and gamma-Fe2O3 nanowires was studied by post annealing the samples at different temperatures. Before and after annealing, the samples were characterized by X-ray diffraction and scanning electron microscopy. The alpha-Fe2O3 nanowires are stable at the temperatures up to 600 degrees C, and the crystalline structure becomes more perfect after annealing. This behavior supplies a way to improve the quality of the alpha-Fe2O3 nanowires. The gamma-Fe2O3 nanowires become unstable when annealed at 350 degrees C. Raman spectra of both nanowires have been measured, which also indicate that the gamma-Fe2O3 nanowires are transformed into alpha-Fe2O3 under the strong laser beam. |
| URI | http://hdl.handle.net/20.500.11897/297648 |
| ISSN | 1005-0302 |
| Indexed | SCI(E) EI 中国科技核心期刊(ISTIC) |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 |
