Role of Silicon in PM Processed Soft Magnetic Alloy

Deepika Sharma; Kamlesh Chandra; Prabhu Shankar Misra

doi:10.4028/www.scientific.net/DDF.307.13

Paper Titles

Computational Fluid Dynamics (CFD) Based Simulated Study of Multi-Phase Fluid Flow
p.1

Role of Silicon in PM Processed Soft Magnetic Alloy
p.13

Voltage Switch of Nano-Size Zinc Oxide Ceramic Defected Barium
p.21

Self-Diffusion in Nano-ZnO
p.27

Localised Vibrational Mode in CuO:Sn (5 at%) Nanoparticles
p.37

A Brief Survey of the Literature on Silica Refractory Research and Development: The Case for Nanostructured Silica Obtained from Rice Husk Ash (RHA)
p.53

Local Density Diffusivity (LDD-) Model for Boron Out-Diffusion of In Situ Boron-Doped Si_0.75Ge_0.25 Epitaxial Films Post Advanced Rapid Thermal Anneals with Carbon Co-Implant
p.63

GaAs Surface Composition Investigation during Al Thin Film Growth Using the CBE Method
p.75

Slow Positron Studies in Polymers
p.85

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 307Role of Silicon in PM Processed Soft Magnetic...

Role of Silicon in PM Processed Soft Magnetic Alloy

Abstract:

Iron-Phosphorus based soft magnetic materials are known for their hot and cold shortness. The present investigation deals with the development of high-density Fe-P based alloys in the form of very thin sheets (0.1mm) by proper soaking of them at a high temperature so as to eliminate Iron-Phosphide eutectic and bring the phosphorus entirely into solution in the iron. It has also been possible to eliminate the use of a hydrogen atmosphere during sintering by using carbon to form CO gas within the compact by reaction with the oxygen of the iron powder particles. A glassy ceramic coating applied over the compact serves as a protective coating in order to avoid atmospheric oxygen attack over the compact held at high temperature. The Fe-0.3wt% P- 0.4wt% Si alloy so formed yielded coercivities as low as 0.42 Oe, resistivities as high as 28.4 µΩcm and total losses as low as 0.132 W/Kg. Such a combination of properties may make the alloy suitable for application in magnetic relays and transformer cores.