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|Title:||A study on barium ferrite particles prepared by chemical coprecipitation||Authors:||Ng, W.K.
|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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