Abstract
This work presents a systematic study of the effect of compaction load on the electric resistivity and initial magnetic permeability of Fe–Ni powders–polymeric matrix composites for energy concentrators. Uniaxial compaction loads P ranged from 5 to 35 tons, founding that the composite electric resistivity decreased from 17×10−4 to 1.66×10−4 Ω cm, while the initial magnetic permeability exhibits a maximum value of 1400 at P=30 tons. Optical microscopy and SEM images revealed that as the compaction load increased, Ni particles welded themselves while Fe particles fractured, together with a decreasing porosity, which in turn, result in an optimum grain size and porosity distribution for P=25, 30 tons. Electric and magnetic property variations were explained in terms of microstructure features.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
