"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Processing and properties of soda lime silica glass glass insulation soft magnetic composite

WEI DING1, LONGTAO1, JIANG, KANG MA1, WENSHU YANG1, GAOHUI WU1,*

Affiliation

  1. Materials Science and Engineering School, P.O.B. 433, Harbin Institute of Technology, Harbin 150001, People’s Republic of China

Abstract

Fe/SiO2Na2OCaO glass soft magnetic composite (SMC) was fabricated by hot pressing with low compaction pressure (80 MPa). Sol gel method was used to create SiO2Na2OCaO glass insulation on the surface of pure iron powders. Iron powder was well coated with glass substances, which have some micro cracks. No significant deformation or grain size difference of iron particles was observed in Fe/SiO2Na2OCaO glass SMC in different directions. Continuous distribution of Si and Na elements between iron particles was revealed by EDS. Interface between iron particles and amorphous SiO2Na2OCaO glass layer was straight, clean and well bonded. Static magnetic properties of Fe/SiO2Na2OCaO glass SMC could be improved by annealing treat ment, while the electrical resistivity (ρ) decreased slightly after annealing treatment. The eddy current loss increased more rapidly than the hysteresis loss with frequency for Fe/SiO2Na2OCaO glass SMC in present work. It should be due to the low electrical resistivity of composites. Therefore, the coating and fabrication parameters should be further optimized in future research..

Keywords

Soft magnetic composite, Sol gel method, Glass insulating layer, Low pressure.

Citation

WEI DING, LONGTAO, JIANG, KANG MA, WENSHU YANG, GAOHUI WU, Processing and properties of soda lime silica glass glass insulation soft magnetic composite, Optoelectronics and Advanced Materials - Rapid Communications, 8, 1-2, January-February 2014, pp.68-71 (2014).

Submitted at: Jan. 8, 2013

Accepted at: Jan. 22, 2014