Preparation and magnetic properties of barium hexaferrite nanorods
Journal Article
·
· Materials Research Bulletin
OSTI ID:21144013
- State Key Laboratory of MMCs, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China)
The barium hexaferrite nanorods were successfully prepared by sol-gel technique combined with polymethylmethacrylate as template. The crystal structure, morphology and magnetic properties of BaFe{sub 12}O{sub 19} with different shape were investigated with X-ray diffraction, field emission scanning electron microscope and vibrating sample magnetometry. The results show that diameters and lengths of magnetic nanorods are about 60 nm and 300 nm, respectively. The coercivity of rod-shaped BaFe{sub 12}O{sub 19} is increased to 5350 Oe, in comparison with 4800 Oe with plate-shape. The formation mechanism of BaFe{sub 12}O{sub 19} nanorods and reasons resulting in high coercivity are discussed.
- OSTI ID:
- 21144013
- Journal Information:
- Materials Research Bulletin, Vol. 43, Issue 6; Other Information: DOI: 10.1016/j.materresbull.2007.06.052; PII: S0025-5408(07)00296-6; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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