Er-based 2:17-type magnets

High-temp demagnetization resistance with high energy product

This magnet combines Er temperature compensation with partial Sm substitution to achieve near-zero temperature coefficients of magnetic properties from room temperature to 150 °C along with high coercivity.

Yue, Ming

Materials Horizons 2025

Specifications

Br

{'zh': '8.92', 'en': '8.92'} kG

Hcj

{'zh': '29.83', 'en': '29.83'} kOe

BH max

{'zh': '18.5', 'en': '18.5'} MGOe

占总稀土含量

{'zh': '60', 'en': ''} %

Advantages

Near-zero temperature coefficients for Br and (BH)max within 20–150 °C