公开(公告)号：US20180100227A1

公开(公告)日：2018-04-12

申请号：US15840747

申请日：2017-12-13

Applicant: Regents of the University of Minnesota ,  UT-BATTELLE, LLC

Inventor： Michael P. Brady ,  Orlando Rios ,  Yanfeng Jiang ,  Gerard M. Ludtka ,  Craig A. Bridges ,  Jian-Ping Wang ,  Xiaowei Zhang ,  Lawrence F. Allard ,  Edgar Lara-Curzio

IPC: C23C8/26 ,  C21D6/00 ,  C21D1/26 ,  C22C38/00 ,  C23C28/00

CPC classification number: C23C8/26 ,  C01B21/0622 ,  C01P2002/72 ,  C01P2006/42 ,  C21D1/26 ,  C21D6/00 ,  C22C33/00 ,  C22C38/00 ,  C22C38/001 ,  C23C28/322 ,  C23C28/34 ,  H01F1/047 ,  H01F1/065

Abstract: A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

公开(公告)号：US10961615B2

公开(公告)日：2021-03-30

申请号：US15840747

申请日：2017-12-13

Applicant: Regents of the University of Minnesota ,  UT-BATTELLE, LLC

Inventor： Michael P. Brady ,  Orlando Rios ,  Yanfeng Jiang ,  Gerard M. Ludtka ,  Craig A. Bridges ,  Jian-Ping Wang ,  Xiaowei Zhang ,  Lawrence F. Allard ,  Edgar Lara-Curzio

IPC: C23C8/26 ,  C21D1/26 ,  C21D6/00 ,  C22C38/00 ,  C23C28/00 ,  C01B21/06 ,  C22C33/00 ,  H01F1/06 ,  H01F1/047

Abstract: A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

公开(公告)号：US09994949B2

公开(公告)日：2018-06-12

申请号：US14754284

申请日：2015-06-29

Applicant: Regents of the University of Minnesota ,  UT-BATTELLE, LLC

Inventor： Michael P. Brady ,  Orlando Rios ,  Yanfeng Jiang ,  Gerard M. Ludtka ,  Craig A. Bridges ,  Jian-Ping Wang ,  Xiaowei Zhang ,  Lawrence F. Allard ,  Edgar Lara-Curzio

IPC: C21D1/26 ,  C22C33/00 ,  H01F1/047 ,  C23C8/26 ,  C21D6/00 ,  C23C28/00 ,  C01B21/06 ,  C22C38/00 ,  H01F1/06

CPC classification number: C23C8/26 ,  C01B21/0622 ,  C01P2002/72 ,  C01P2006/42 ,  C21D1/26 ,  C21D6/00 ,  C22C33/00 ,  C22C38/00 ,  C22C38/001 ,  C23C28/322 ,  C23C28/34 ,  H01F1/047 ,  H01F1/065

Abstract: A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

公开(公告)号：US20150380158A1

公开(公告)日：2015-12-31

申请号：US14754284

申请日：2015-06-29

Applicant: Regents of the University of Minnesota ,  UT-BATTELLE, LLC

Inventor： Michael P. Brady ,  Orlando Rios ,  Yanfeng Jiang ,  Gerard M. Ludtka ,  Craig A. Bridges ,  Jian-Ping Wang ,  Xiaowei Zhang ,  Lawrence F. Allard ,  Edgar Lara-Curzio

IPC: H01F41/02 ,  H01F41/00 ,  C23C8/26 ,  H01F1/03 ,  C21D1/26 ,  C21D6/00

CPC classification number: C23C8/26 ,  C01B21/0622 ,  C01P2002/72 ,  C01P2006/42 ,  C21D1/26 ,  C21D6/00 ,  C22C33/00 ,  C22C38/00 ,  C22C38/001 ,  C23C28/322 ,  C23C28/34 ,  H01F1/047 ,  H01F1/065

Abstract: A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

Abstract translation: 一种方法可以包括在施加的磁场的存在下退火包括铁和氮的材料以形成至少一个Fe 16 N 2相域。 施加的磁场可以具有至少约0.2特斯拉（T）的强度。

公开(公告)号：US12014853B2

公开(公告)日：2024-06-18

申请号：US17058882

申请日：2019-05-28

Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： Jian-Ping Wang ,  Jinming Liu ,  Bin Ma ,  Fan Zhang ,  Guannan Guo ,  Yiming Wu ,  Xiaowei Zhang

IPC: H01F1/04 ,  C01B21/06 ,  C23C8/02 ,  C23C8/26 ,  H01F1/047 ,  H01F41/02

CPC classification number: H01F1/047 ,  C01B21/0622 ,  C23C8/02 ,  C23C8/26 ,  H01F41/0253 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/42

Abstract: In general, the disclosure is directed to bulk iron-nitride materials having a polycrystalline microstructure having pores including a plurality of crystallographic grains surrounded by grain boundaries, where at least one crystallographic grain includes an iron-nitride phase including any of a body centered cubic (bcc) structure, a body centered tetragonal (bct), and a martensite structure. The disclosure further describes techniques producing a bulk iron-nitride material having a polycrystalline microstructure, including: melting an iron source to obtain a molten iron source; fast belt casting the molten iron source to obtain a cast iron source; cooling and shaping the cast iron source to obtain a bulk iron-containing material having a body-centered cubic (bcc) structure; annealing the bulk iron-containing material at an austenite transformation temperature and subsequently cooling the bulk iron-containing material; and nitriding the bulk iron-containing material to obtain the bulk iron-nitride material.