Effects of proton irradiation on structure of NdFeB permanent magnets studied by X-ray diffraction and X-ray absorption fine structure |
| |
Authors: | L. YangL. Zhen C.Y. XuX.Y. Sun W.Z. Shao |
| |
Affiliation: | School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of China |
| |
Abstract: | The effects of proton irradiation on the structure of NdFeB permanent magnet were investigated by X-ray diffraction and X-ray absorption fine structure (XAFS). The results reveal that proton irradiation has no effect on the long-range structure, but significantly affects the atomic local structure of the NdFeB magnet. The alignment degree of the magnet decreases and the internal stress of the lattice increases after proton irradiation. XAFS results show that the coordination number of Fe-Nd in the first neighboring coordination shell of the Fe atoms decreases and the disorder degree increases. |
| |
Keywords: | NdFeB permanent magnet Proton irradiation X-ray absorption fine structure |
本文献已被 ScienceDirect 等数据库收录! |