Zhejiang Sheensen Magnetic Technology Co., Ltd. reduces the use of heavy rare-earth and material costs through grain boundary diffusion technology.

GBD refers to the diffusion of molten solder atoms along the crystal grain boundaries of the base metal and is a method of selectively introducing heavy rare earth elements into the grain boundary phase of magnets. Tightly controlling the process can improve magnetic properties at high temperatures while reducing the need for heavy rare earth elements.

In recent years, Sheensen Magnetic has produced high temperature/high ortho NdFeB magnets with shallow heavy rare earth content by improving the control of grain size and shape and using grain boundary diffusion technology.

In addition, Sheensen Magnetic has combined Dysprosium (Dy) and (Tb) Terbium-free technology to produce cost-effective GDB products, such as 54UH, 54EH, and other extremely high-performance magnets.