Fabrication and Magnetic Property of BaSmxFe12–x O19 (x ≦ 0.4) Nanofibers
Abstract:BaSn x Fe12–x O19 (x ≦ 0.4) ferrite nanofibers were prepared by sol–gel method from starting reagents of metal salts and citric acid. These nanofibers were characterized by TG-DTA, FTIR, SEM, XRD and VSM. These results show that the BaSn x Fe12–x O19 (x ≦ 0.4) ferrite nanofibers were obtained subsequently from calcination at 750 °C for 1 h. The BaSn x Fe12–x O19 (x ≦ 0.4) microstructure and magnetic property are mainly influenced by chemical composition and heat-treatment temperature. The grain sizes of BaSm0.3Fe11.7O19 ferrite nanofibers are in a nanoscale from 40 nm to 62 nm corresponding to the calcination temperature from 750 °C to 1050 °C. The saturation magnetization of BaSn x Fe12–x O19 ferrite nanofiber calcined at 950 °C for 1 h initially decreases with the Sm content from 0 to 0.3 and then increases with a further Sm content, while the coercivity exhibits a continuous increase from 348 kA·m−1 (x = 0) to 427 kA·m−1 (x = 0.4). The differences of magnetic properties are attributed to lattice distortion and enhancement for the anisotropy energy.
Document Type: Research Article
Publication date: 2012-03-01
More about this publication?
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites