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Ball milling synthesis and BCC to FCC phase transition under pressure in nanostructured NANOPERM alloys

V. D. COJOCARU1,* , F. TURQUIER2, R. NICULA2, M. STIR2, E. BURKEL2

Affiliation

  1. Politehnica University of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
  2. a University of Rostock, Physics Department, August-Bebel-Str. 55, D-18055, Rostock, Germany.

Abstract

The main aim of the present work is to study the synthesis and stability of soft-magnetic nanostructured materials under high pressure – high temperature conditions. NANOPERM alloy powders were prepared by high-energy ball-milling. The as-milled alloys consist of a iron-based nanocrystalline solid solution. The evolution of crystallinity and grain-size during the ball-milling process and investigations under external pressure up to 3 GPa for temperatures up to 1200°C were evaluated using synchrotron radiation X-ray diffraction. The X-ray experiments were performed at the B2/MAX80 instrument beamlines at DESY/HASYLAB, Hamburg, Germany..

Keywords

Magnetic materials, Nanostructured materials, Mechanical alloying.

Submitted at: Dec. 14, 2009
Accepted at: Feb. 18, 2010

Citation

V. D. COJOCARU, F. TURQUIER, R. NICULA, M. STIR, E. BURKEL, Ball milling synthesis and BCC to FCC phase transition under pressure in nanostructured NANOPERM alloys, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 397-401 (2010)