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https://scholarbank.nus.edu.sg/handle/10635/106956
Title: | A study on barium ferrite particles prepared by chemical coprecipitation | Authors: | Ng, W.K. Ding, J. Chow, Y.Y. Wang, S. Shi, Y. |
Issue Date: | Oct-2000 | Citation: | Ng, W.K.,Ding, J.,Chow, Y.Y.,Wang, S.,Shi, Y. (2000-10). A study on barium ferrite particles prepared by chemical coprecipitation. Journal of Materials Research 15 (10) : 2151-2156. ScholarBank@NUS Repository. | Abstract: | Chemical coprecipitation was employed to prepare fine particles of barium ferrite with high coercivity (450 kA/m). Magnetic properties of the bonded barium ferrite magnet were measured at different temperatures. The results were found to be fairly close to the theoretical values based on the Stoner-Wohlfarth model. Mechanical milling was utilized to prepare ultrafine dispersed barium ferrite particles. NaF was introduced as a dispersing agent during milling and subsequent heat treatment. The dispersed particles were compacted and then subjected to die upsetting at room temperature. A weak anisotropy in the coercivity and remanence was found in the directions parallel and perpendicular to the compaction direction. | Source Title: | Journal of Materials Research | URI: | http://scholarbank.nus.edu.sg/handle/10635/106956 | ISSN: | 08842914 |
Appears in Collections: | Staff Publications |
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