Influence of Ball Milling on the Local Atomic Structure of an Amorphous CoFeSiB Alloy

J. Bednarcika, S. Michalikb, P. Kollarb and S. Rothc aDeutsches Elektronen-Synchrotron (DESY), Notkestr. 85, D-22607 Hamburg, Germany bInstitute of Physics, P.J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia cInstitute for Metallic Materials, IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany

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It follows from experimental observations that ball milling induces substantial changes in an amorphous Co70.3Fe4.7Si10B15 (at.%) alloy. X-ray diffraction indicates formation of nanocrystalline bcc-(Co,Fe) phase during ball milling. As a consequence crystallization sequence is altered and the total enthalpy of crystallization reduces with the milling time. Furthermore thermomagnetic measurements reveal that specific magnetization and Curie temperature of amorphous phase are influenced by ball milling.

DOI: 10.12693/APhysPolA.118.825 PACS numbers: 61.43.Dq, 61.05.cp, 64.70.dg, 75.30.Kz