Near net shape bulk laminated silicon iron electric steel for improved electrical resistance and low high frequency loss

Cui, Jun; Ouyang, Gaoyuang; Jensen, Brandt; Dennis, Kevin W.; Cui, Baozhi

Title: Near net shape bulk laminated silicon iron electric steel for improved electrical resistance and low high frequency loss

Patent · Tue Nov 09 00:00:00 EST 2021

OSTI ID:1860055

Cui, Jun; Ouyang, Gaoyuang; Jensen, Brandt; Dennis, Kevin W.; Cui, Baozhi

The invention involves producing discontinuous, flake-shaped particles of a soft magnetic material, coating the flake-shaped particles with an electrically insulating coating, and consolidating the coated flaked-shaped particles to form a soft magnetic bulk shape. The consolidated bulk shape can comprise a layer or a simple or complex 3D magnet part shape, which has a consolidated layered microstructure that includes laminated soft magnetic regions that are substantially encapsulated by an electrical insulating layer to increase the resistivity of soft magnetic material, especially when used in silicon iron magnet parts.

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Research Organization:: Iowa State Univ., Ames, IA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: EE0007794

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Number(s):: 11,170,919

Application Number:: 16/501,332

OSTI ID:: 1860055

Resource Relation:: Patent File Date: 03/27/2019

Country of Publication:: United States

Language:: English

References (9)

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Microstructure, Texture Evolution, and Magnetic Properties of Strip-Casting Nonoriented 6.5 wt.% Si Electrical Steel Sheets With Different Thickness Li, Hao-Ze; Wang, Xiang-Long; Liu, Hai-Tao IEEE Transactions on Magnetics, Vol. 51, Issue 11 https://doi.org/10.1109/TMAG.2015.2440651	journal	November 2015
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Plurality of Flaky Magnetic Metal Particles, Pressed Powder Material, and Rotating Electric Machine Kinouchi, Hiroaki; Suetsuna, Tomohiro; Kawamoto, Takahiro https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20190283127 US Patent Application 16/106636; 20190283127	patent-application	September 2019
Fabrication of Fe-6.5wt%Si Ribbons by Melt Spinning Method on Large Scale Liang, Y. F.; Wang, S.; Li, H. Advances in Materials Science and Engineering, Vol. 2015 https://doi.org/10.1155/2015/296197	journal	January 2015
Metal-Containing Particle Aggregate, Metal-Containing Particle Composite Member, and Method of Manufacturing the Aggregate and the Composite Member Yonetsu, Maki; Suetsuna, Tomohiro; Harada, Kouichi https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120049100 US Patent Application 13/216619; 20120049100	patent-application	March 2012
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Magnetic properties and workability of 6.5% silicon steel sheet manufactured in continuous CVD siliconizing line Yamaji, T.; Abe, M.; Takada, Y. Journal of Magnetism and Magnetic Materials, Vol. 133, Issue 1-3 https://doi.org/10.1016/0304-8853(94)90521-5	journal	May 1994

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