Volume 37, Issue 1 (Journal of Advanced Materials-Spring 2018)                   jame 2018, 37(1): 97-104 | Back to browse issues page

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Department of Physics, Payamenoor University, Iran. , amod4754@gmail.com
Abstract:   (5430 Views)

In this study, iron powder (~45 μm) with the  minimum purity of 99% was insulated by the 1 to 4 wt% sodium silicate insulator (SiO2.3Na2O solution in 40 wt% water) and the 0.5 wt% zinc stearate. Insulated powders were pressed in a die with  a toroidal shape at the pressure of 320 MPa. The effects of insulator percentage and annealing temperature on the magnetic permeability, core loss tangent, and the total loss were investigated. The results indicated that the sodium silicate insulator could be suitable for insulating iron powders used in iron powder cores for high frequencies up to 1000 kHz. Also, this insulator could be stable against heat up to 450 °C.

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Type of Study: Research | Subject: Electronic and magnetic materials
Received: 2017/04/19 | Accepted: 2018/01/14 | Published: 2018/05/30

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