Developing Substitutes

The CMI focus area Developing Substitutes researches magnets with reduced rare earth content. Researchers leading projects in Developing Substitutes are located at Ames Laboratory and Oak Ridge National Laboratory.

News & Highlights

All News | All Highlights

Magnetic anisotropy and magnetic moment of pure CeCo5 with respect to U (eV) and orbital polarization (OP) correction (grey-shaded)

Research Highlight

Enhancing magnetic properties

Predicted formation energy (top), magnetic anisotropy (middle), and energy product for LaCo5-xFexN2-y compounds

Research Highlight

New hard magnetic materials with reduced Co content

The PDOS of distinct 2c and 3g2 Co sites along the [100] and [001] directions for different electron density functionals. The shaded regions indicate the DOS for the in-plane [100] axis, whereas the solid lines indicate the DOS along the uniaxial [001] direction. The difference between these curves is an important contribution to magnetic anisotropy.

Research Highlight

Review article on rare earth magnets published

$X-ray diffraction patterns of precursor phases to L10 FeNi.$ Research Highlight

High-performance critical-element-free permanent magnets

Magnetic hysteresis loops of AM fabricated NdFeB PPS bonded PM at room temperature. Sample ID: 1.1- as printed; 1.2-uncoated (dipped in pH 1.35 solution for 24 h), 1.3- coated with 3M ScotchWeld DP100 (dipped in pH 1.35 solution 24 h), 1.4- uncoated (aged at 80 °C; 95% RH; > 120 h), 1.5- coated with 3M ScotchWeld DP100 (80 °C; 95% RH; > 100 h) (bottom). Note the improved performance of the coated samples 1.3 and 1.5 relative to the uncoated samples 1.2 and 1.4.

Research Highlight

High-strength, high temperature bonded magnets

Research Projects

CMI Project 2.1.11: Additive manufacturing of polymer based bonded magnets

Parans Paranthaman at Oak Ridge National Laboratory leads the CMI Project "Additive manufacturing of polymer based bonded magnets"

magnet made with additive manufacturing techniques

CMI Project 2.1.12: High-performance, critical-element-free permanent magnets

Vitalij Pecharsky at Ames Laboratory leads the CMI project "High-performance, critical-element-free permanent magnets"

CMI Project 2.1.13: Finite element modeling of magnetic and electrochemical systems

Ikenna Nlebedim at Ames Laboratory leads the CMI Project "Finite element modeling of magnetic and electrochemical systems"

CMI Project 2.1.14: Reduced rare earth content high performance magnets

Andriy Palasyuk at Ames Laboratory leads the CMI Project "Reduced rare earth content high performance magnets"

CMI Project 2.1.15: Heterogeneous Sm-Co and Nd-Fe-B magnets

Baozhi Cui at Ames Laboratory leads the CMI project "Heterogeneous Sm-Co and Nd-Fe-B magnets"

CMI Project 2.1.19: Predicting magnetic anisotropy

Durga Paudyal at Ames Laboratory leads the CMI project "Predicting magnetic anisotropy"

CMI Project 2.1.20: Application targeted magnetic materials

Jun Cui at Ames Laboratory leads the CMI project "Application targeted magnetic materials"

CMI Project 2.1.22: SmFeN as a cost-effective high performance magnet

Vitalij Pecharsky at Ames Laboratory leads the CMI project "SmFeN as a cost-effective high performance magnet"

CMI Project 2.1.23: Enhancing HDDR powders

Michael Kesler at Oak Ridge National Laboratory leads the CMI project "Enhancing HDDR powders"