Influence of spark plasma sintering parameters on magnetic properties of FeCo alloy

Equiatomic FeCo alloys with average particle size of 24 μm were sintered using spark plasma sintering (SPS) system at sintering temperatures of 1100, 800, and 850 °C for heating rates 50, 100, 300 °C/min by applying pressure of 50 MPa instantly at room temperature for sintering time of 5 and 15 minutes. The highest saturation induction was achieved at SPS conditions of 50 MPa, 50 °C/min, 1100 °C, without dwelling, of value 2.39 T. The saturation induction was improved with extending sintering time, the coercivity was higher in samples sintered at a fast heating rate in comparison to the slowest heating rate.

[1]  M. Reece,et al.  Enhancement in the elongation, yield strength and magnetic properties of intermetallic FeCo alloy using spark plasma sintering , 2017, Journal of Materials Science.

[2]  S. Evans,et al.  Effect of ball-milling time on mechanical and magnetic properties of carbon nanotube reinforced FeCo alloy composites , 2017 .

[3]  S. Evans,et al.  Mechanical and magnetic properties of spark plasma sintered soft magnetic FeCo alloy reinforced by carbon nanotubes , 2016 .

[4]  S. Evans,et al.  Synthesis and properties of graphene and graphene/carbon nanotube-reinforced soft magnetic FeCo alloy composites by spark plasma sintering , 2016, Journal of Materials Science.

[5]  S. Evans,et al.  Structural and magnetic characterization of spark plasma sintered Fe-50Co alloys , 2013 .

[6]  Z. A. Munir,et al.  The effect of electric field and pressure on the synthesis and consolidation of materials: A review of the spark plasma sintering method , 2006 .

[7]  Thomas Sourmail,et al.  Near equiatomic FeCo alloys: Constitution, mechanical and magnetic properties , 2005 .

[8]  Seetharama C. Deevi,et al.  Soft magnetic FeCo alloys: alloy development, processing, and properties , 2005 .

[9]  M. Dougan,et al.  Sintered soft magnetic materials. Properties and applications , 2003 .

[10]  V. Mamedov,et al.  Spark plasma sintering as advanced PM sintering method , 2002 .

[11]  F. Hanejko,et al.  HIGH DENSITY PROCESSING OF HIGH PERFORMANCE FERROUS MATERIALS , 1994 .

[12]  T. Sato,et al.  Magnetic properties of Fe-Co alloys produced by powder metallurgy , 1986 .