Title of article :
Magnetic and Electrical Properties of Nanocrystalline Fe85Si10Ni5/Phenolic Resin Soft Magnetic Composites
Author/Authors :
Mohseni ، Farzin Materials Science and Engineering Department - Sharif University of Technology , Madaah Hosseini ، Hamid Reza Materials Science and Engineering Department - Sharif University of Technology , Shokrollahi ، Hooman Department of Materials Science and Engineering, Electroceramics Group - Shiraz University of Technology , Gheiratmand ، Tayebeh Materials Science and Engineering Department - Sharif University of Technology
Abstract :
In this work, nanocrystalline Fe85Si10Ni5 soft magnetic powders were prepared by mechanical alloying and subsequent annealing to reduce the internal stresses and lattice strains. The powders were mixed with phenolic resin and warm pressed to produce nanostructured soft magnetic composites. The effect of annealing time and temperature on the crystalline structure, microstructure and magnetic properties of the powders and composite samples were investigated by XRD, SEM, VSM and LCR techniques. The results show that the annealing causes a significant improvement in the soft magnetic properties of the powders. By increasing the pressure and temperature in the compaction process, the density and permeability of the bulk samples increased. Moreover, increasing the phenolic resin content from 0.8 to 1.2 wt. % improves the electrical resistivity of the nanostructured soft magnetic composites.
Keywords :
Soft Magnetic Composite , Nanocrystalline Fe , Si , Ni alloys , Mechanical Alloying , Magnetic Properties
Journal title :
Journal of Ultrafine Grained and Nanostructured Materials
Journal title :
Journal of Ultrafine Grained and Nanostructured Materials
