Monitoring the alloying process of mechanically synthesized Fe80Ni20 through changes in magnetic properties

Volk, Michael W. R.; Wack, Michael R. und Maier, Bernd J. (2018): Monitoring the alloying process of mechanically synthesized Fe80Ni20 through changes in magnetic properties. In: Journal of Alloys and Compounds, Bd. 732: S. 336-342

Abstract

Fe80Ni20 was prepared by mechanical synthesis using a Fritsch Pulverisette Premium (P7) planetary ball mill at 400 RPM. The alloying process was monitored by measuring the magnetic properties of 14 subsamples taken at different milling times (1-2160 min) as well as structural modifications using powder X-ray diffraction and high-resolution imaging. A macroscopically homogeneous body-centered cubic (bcc) alloy with crystallite sizes below 11 nm and microstrain above 1.2% was reached after 960 min (16 h) of milling. The magnetic properties show three distinct stages: (1) the size reduction of the elementary powders, (2) alloying and (3) reduction in particle size of the final alloy.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Geowissenschaften > Department für Geo- und Umweltwissenschaften
• Themengebiete: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
• ISSN: 0925-8388
• Sprache: Englisch