Magnetic hardening of high-energy ball-milled nanocrystalline LaMn2Si2

ELMALI A., Tekerek S., Dincer I., Elerman Y., Theissmann R., Ehrenberg H., ...More

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol.320, no.3-4, pp.364-367, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 320 Issue: 3-4
  • Publication Date: 2008
  • Doi Number: 10.1016/j.jmmm.2007.06.023
  • Journal Name: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.364-367
  • Keywords: intermetallic phase, nanocrystalline material, magnetic property, coercivity, DOMINANT ANTIFERROMAGNETIC COMPONENTS, NEUTRON-DIFFRACTION, PHASE-TRANSITIONS, MN PLANES, SILICIDES, BEHAVIOR, SYSTEM
  • Ankara University Affiliated: Yes

Abstract

Nanocrystalline LaMn2Si2 powders have been obtained by high-energy ball milling for 30 min from bulk alloys. After milling a high coercivity about 6 kOe is observed at 10 K in contrast to neglectable coercivity for the bulk LaMn2Si2 at 5 K. The average grain size of the optimum particles which is obtained from X-ray diffraction pattern and HRTEM picture is about 20 nm. The magnetic hardening is observed for the nanocrystalline LaMn2Si2, reflected in the coercivity field strength of 6 kOe at 10 K. (c) 2007 Elsevier B.V. All rights reserved.