The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Jan. 11, 2018
Applicant:
Grirem Advanced Materials Co., Ltd., Beijing, CN;
Inventors:
Guiyong Wu, Beijing, CN;
Yang Luo, Beijing, CN;
Hongwei Li, Beijing, CN;
Yuanfei Yang, Beijing, CN;
Dunbo Yu, Beijing, CN;
Ningtao Quan, Beijing, CN;
Chao Yuan, Beijing, CN;
Wenlong Yan, Beijing, CN;
Assignee:
GRIREM ADVANCED MATERIALS CO., LTD., Beijing, CN;
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/00 (2006.01); H01F 1/059 (2006.01); C23C 8/24 (2006.01); H01F 1/08 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/28 (2006.01); C23C 8/26 (2006.01); H01F 41/02 (2006.01); C22C 33/02 (2006.01); B22F 9/04 (2006.01); B22F 9/08 (2006.01); B22F 3/02 (2006.01); B22F 5/00 (2006.01); B22F 1/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0596 (2013.01); C22C 38/001 (2013.01); C22C 38/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/10 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/28 (2013.01); C23C 8/24 (2013.01); C23C 8/26 (2013.01); H01F 1/083 (2013.01); H01F 41/0266 (2013.01); B22F 1/0059 (2013.01); B22F 1/0085 (2013.01); B22F 1/0088 (2013.01); B22F 3/02 (2013.01); B22F 5/00 (2013.01); B22F 9/04 (2013.01); B22F 2003/023 (2013.01); B22F 2009/048 (2013.01); B22F 2009/0812 (2013.01); B22F 2201/02 (2013.01); B22F 2201/11 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C22C 33/0257 (2013.01); C22C 2202/02 (2013.01);
Abstract
Provided are a highly thermostable rare-earth permanent magnetic material, a preparation method thereof and a magnet containing the same. A composition of the rare-earth permanent magnetic material by an atomic percentage is as follows: SmRFeMN, wherein R is at least one of Zr and Hf, M is at least one of Co, Ti, Nb, Cr, V, Mo, Si, Ga, Ni, Mn and Al, x+a is 7-10%, a is 0-1.5%, y is 0-5% and z is 10-14%.