Yongqiang Yuan

Title: **Yongqiang Yuan: Innovator in Rare-Earth Permanent Magnet Technology**

Introduction

Yongqiang Yuan is a notable inventor based in Beijing, China, recognized for his contributions to the field of magnetic materials. With a total of two patents to his name, Yuan's work has significant implications for industries relying on advanced magnetic technologies.

Latest Patents

Yuan's latest patents focus on the development of rare-earth permanent magnetic powder and its applications. The first patent describes a rare-earth permanent magnetic powder that comprises 70 vol % to 99 vol % of a hard magnetic phase and 1 vol % to 30 vol % of a soft magnetic phase. The hard magnetic phase features a TbCu structure with a grain size ranging from 5 nm to 100 nm. The soft magnetic phase is characterized by a Fe phase with a bcc structure, displaying an average grain size between 1 nm and 30 nm. This innovative powder enhances the performance of bonded magnets and the devices that utilize them.

The second patent elaborates further on the compositions of rare-earth permanent magnetic powder, highlighting its essential components: 7-12 at % of Sm, 0.1-1.5 at % of M (where M represents a selection from various elements such as Be, Cr, Al, and others), 10-15 at % of N, and 0.1-1.5 at % of Si, with Fe as the balance. This formulation aims to improve the amorphous structure formation of SmFe alloy and its wettability, thereby optimizing its injection process during manufacturing. The average diameter ranges from 10-100 μm, showcasing nanometer crystal compositions averaging 10-120 nm.

Career Highlights

Yongqiang Yuan has made significant strides in his career, working with esteemed organizations such as Grirem Advanced Materials Co., Ltd. and the General Research Institute for Nonferrous Metals. His experience in these institutions has allowed him to contribute to groundbreaking technologies in the field of materials science.

Collaborations

Throughout his career, Yuan has collaborated with talented individuals such as Hongwei Li and Yang Luo. These partnerships have fostered innovation and development in the science of magnetic materials, leading to new discoveries and advancements in technology.

Conclusion

Yongqiang Yuan stands out as a prominent figure in the realm of rare-earth permanent magnet innovation. His patents reflect a deep understanding of material properties and a commitment to enhancing magnetic technologies. As he continues to advance his research, the impact of his inventions is likely to be felt across multiple industries.