Title :
Magnetic properties of nano-crystalline Fe-Cr alloys prepared by mechanical alloying
Author :
Murugesan, M. ; Kuwano, H.
Author_Institution :
Muroran Inst. of Technol., Hokkaido, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
Fe-Cr powdered alloys synthesized via mechanical attrition have been examined by magnetization and 57Fe Mossbauer spectroscopy. Mossbauer studies reveal that Fe1-xCrx becomes paramagnetic for x⩾0.46 after 100 h milling. Magnetization results suggest that a significant reduction of Fe magnetic moment occurs in the nano-crystalline Fe1-xCrx alloys. Curie temperature for x=0.46 and 0.69 lies below liquid N 2 and liquid He temperature, respectively
Keywords :
Curie temperature; Mossbauer effect; chromium alloys; ferromagnetic materials; iron alloys; magnetisation; mechanical alloying; nanostructured materials; 100 h; 57Fe Mossbauer spectroscopy; Curie temperature; Fe-Cr; magnetic properties; magnetization; mechanical alloying; mechanical attrition; nano-crystalline Fe-Cr alloys; Chromium alloys; Helium; Iron alloys; Magnetic moments; Magnetic properties; Magnetization; Milling; Paramagnetic materials; Spectroscopy; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
