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Bulk polycrystalline aggregates were obtained, having average grain sizes of about 200 and 300\u2009nm, respectively. It is found that both nanoparticles and consolidated samples exhibit a soft ferromagnetic behavior. The magnetization reversal likely occurs by nucleation\/propagation process. However, a curling process can be involved in the magnetization reversal for the smaller particles. The dynamic measurements provide for the consolidated samples magnetic parameters corresponding to bulk cobalt with vanishing anisotropy. The contribution of the intergranular region is found to be negligible. We can infer that the used consolidation routes insure a good magnetic interfacial contact between the particles.<\/jats:p>","DOI":"10.1002\/pssa.201026496","type":"journal-article","created":{"date-parts":[[2011,3,31]],"date-time":"2011-03-31T08:43:23Z","timestamp":1301561003000},"page":"1942-1949","source":"Crossref","is-referenced-by-count":2,"title":["Magnetic properties of ultrafine\u2010grained cobalt samples obtained from consolidated nanopowders"],"prefix":"10.1002","volume":"208","author":[{"given":"F.","family":"Fellah","sequence":"first","affiliation":[]},{"given":"S. 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