公开(公告)号：US11161175B2

公开(公告)日：2021-11-02

申请号：US16340031

申请日：2017-10-06

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Jian-Ping Wang ,  Bin Ma ,  Jinming Liu ,  Yiming Wu ,  YanFeng Jiang

IPC分类号： B22F1/02 ,  B22F1/00 ,  H01F1/055 ,  H01F1/059 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  C22C38/00 ,  C22C38/10

摘要： Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.

公开(公告)号：US20220354973A1

公开(公告)日：2022-11-10

申请号：US17659953

申请日：2022-04-20

申请人： Regents of the University of Minnesota

发明人： Jian-Ping Wang ,  Kai Wu ,  Bin Ma ,  Jinming Liu

IPC分类号： A61K49/18 ,  C09C1/22 ,  C09C3/00 ,  C09C3/04 ,  C09C3/08 ,  C09C3/10

摘要： A method may include wet ball milling a plurality of iron nitride nanoparticles in the presence of a surface active agent to modify a surface of the plurality of iron nitride nanoparticles and form a plurality of surface-modified iron nitride nanoparticles for a variety of biomedical applications and soft magnetic materials related applications.