Project Leader: Jürgen Eckert

Co-Proposer: Parthiban Ramasamy

Description:

Ferromagnetic amorphous/nano-crystalline materials are becoming increasingly important because of their excellent soft magnetic properties. Soft magnetic materials contain 70-85% transition metals (Fe, Co, Ni, etc.) as well as 15-30% metalloids (Si, B, etc.). The unique combination of these elements results in a relatively good glass forming ability leading to an amorphous structure. Additionally, the homogenous glassy microstructure yields to the absence of magneto-crystalline anisotropy, resulting in unique soft magnetic properties.

The project comprises of following objectives:

(i) Optimize new alloy compositions with very good soft ferromagnetic properties (high saturation and low coercively)

(ii) High/commercial purity feedstock material will be used to elucidate the influence of oxygen and other impurities on glass forming ability and magnetic properties.

(iii) Production of amorphous/nano-crystalline ferromagnetic powders using gas atomization (GA) process.

(iv) Identifying the correct annealing parameters to reduce the thermal stress and improve the soft magnetic properties.

Company: Huawei

Project Acronym: HIRP

Duration: 01.08.2020 - 30.07.2021