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Title: Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite

Abstract

The research we conducted focuses on the rare-earth (RE)-free permanent magnet by modeling, simulating, and synthesizing exchange coupled two-phase (hard/soft) RE-free core-shell nano-structured magnet. The RE-free magnets are made of magnetically hard core materials (high anisotropy materials including Mn-Bi-X and M-type hexaferrite) coated by soft shell materials (high magnetization materials including Fe-Co or Co). Therefore, our research helps understand the exchange coupling conditions of the core/shell magnets, interface exchange behavior between core and shell materials, formation mechanism of core/shell structures, stability conditions of core and shell materials, etc.

Authors:
 [1];  [1];  [1];  [2];  [2]
  1. University of Alabama
  2. University of California San Diego
Publication Date:
Research Org.:
1. University of Alabama, Tuscaloosa, AL; 2. University of California, San Diego, CA; 3. Mississippi State University, Mississippi State, MS
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1133257
Report Number(s):
DOE-ALABAMA-0000189
DOE Contract Number:  
AR0000189
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Exchange coupling, core-shell, rare-earth-free, permanent magnet; Mn-Bi, M-type hexaferrite

Citation Formats

Hong, Yang-Ki, Haskew, Timothy, Myryasov, Oleg, Jin, Sungho, and Berkowitz, Ami. Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite. United States: N. p., 2014. Web. doi:10.2172/1133257.
Hong, Yang-Ki, Haskew, Timothy, Myryasov, Oleg, Jin, Sungho, & Berkowitz, Ami. Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite. United States. doi:10.2172/1133257.
Hong, Yang-Ki, Haskew, Timothy, Myryasov, Oleg, Jin, Sungho, and Berkowitz, Ami. Thu . "Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite". United States. doi:10.2172/1133257. https://www.osti.gov/servlets/purl/1133257.
@article{osti_1133257,
title = {Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite},
author = {Hong, Yang-Ki and Haskew, Timothy and Myryasov, Oleg and Jin, Sungho and Berkowitz, Ami},
abstractNote = {The research we conducted focuses on the rare-earth (RE)-free permanent magnet by modeling, simulating, and synthesizing exchange coupled two-phase (hard/soft) RE-free core-shell nano-structured magnet. The RE-free magnets are made of magnetically hard core materials (high anisotropy materials including Mn-Bi-X and M-type hexaferrite) coated by soft shell materials (high magnetization materials including Fe-Co or Co). Therefore, our research helps understand the exchange coupling conditions of the core/shell magnets, interface exchange behavior between core and shell materials, formation mechanism of core/shell structures, stability conditions of core and shell materials, etc.},
doi = {10.2172/1133257},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}