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Title

Crystallization kinetics and soft magnetic properties in metalloid-free (Fe,Co)90Zr10 amorphous and nanocrystalline alloys

AuthorsBlázquez, J. S.; Ipus, J.J.; Conde, C. F.; Cabrera, D.; Franco, V. ; Conde Amiano, Alejandro
KeywordsAmorphous and nanocrystalline alloys
Crystallization kinetics
Soft magnetic alloys
Issue Date2014
PublisherElsevier
CitationJournal of Alloys and Compounds, 615S1 (2014) 552-555
AbstractMicrostructure and magnetic properties of metalloid-free (Fe100- xCox)90Zr10 amorphous and nanocrystalline alloys were characterized. Devitrification of these amorphous alloys occurs in two overlapped transformations leading to the formation of α-Fe(Co) and Fe(Co)Zr2 phases. Constant local Avrami exponents have been found for each individual process. Although Co-free alloy shows a larger grain size, crystalline fractions are similar for both alloys after equivalent annealing. Good soft magnetic properties at room temperature have been observed for amorphous and nanocrystalline alloy with x = 30, which exhibits an amorphous Curie temperature of 735 K. The x = 0 amorphous alloy is paramagnetic at room temperature and nanocrystalline samples exhibit a transition to superparamagnetic behavior
Publisher version (URL)http://dx.doi.org/10.1016/j.jallcom.2014.01.095
URIhttp://hdl.handle.net/10261/103561
DOIhttp://dx.doi.org/10.1016/j.jallcom.2014.01.095
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