• Influence of nickel addition on magnetic and electro-mechanical behaviour of permalloys

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    • Keywords

       

      Ni-rich alloy; low Ni alloy; annealing temperature; magnetic properties; electro-mechanical behaviour.

    • Abstract

       

      Magnetic and electro-mechanical investigations have been carried out in two Ni–Fe permalloys under hydrogen atmosphere by varying annealing temperature. These alloys have been characterized for various magnetic parameters like peak permeability, coercivity and core loss under changed annealing profile conditions. The magnetic properties of Ni-rich (Ni ∼ 82%) alloy at 100 Hz were found to be better than the low Ni (Ni ∼ 47%) alloy. The alloys were tested for watch movement and found that the battery life of the watch movement improved by 38% using Ni-rich permalloy.

    • Author Affiliations

       

      Kiran Gupta1 K K Raina2 S K Sinha1

      1. National Research and Technology Consortium, Sector-1, Parwanoo 173 220, India
      2. School of Physics and Materials Science, Thapar Institute of Engineering & Technology, Patiala 147 004, India
    • Dates

       
  • Bulletin of Materials Science | News

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