公开(公告)号：US20180268971A1

公开(公告)日：2018-09-20

申请号：US15868063

申请日：2018-01-11

Applicant: GRIREM ADVANCED MATERIALS CO., LTD.

Inventor： Guiyong Wu ,  Yang Luo ,  Hongwei Li ,  Yuanfei Yang ,  Dunbo Yu ,  Ningtao Quan ,  Chao Yuan ,  Wenlong Yan

IPC: H01F1/059 ,  H01F41/02 ,  C22C38/00 ,  C22C38/14 ,  C22C38/04 ,  C22C38/06 ,  C22C38/02 ,  C22C38/10 ,  C22C38/12 ,  C22C38/28

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: SMxRaFe100-x-y-z-aMyNz, 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%.

公开(公告)号：US20150040725A1

公开(公告)日：2015-02-12

申请号：US14380060

申请日：2012-07-02

Applicant: GRIREM ADVANCED MATERIALS CO., LTD.

Inventor： Yang Luo ,  Hongwei Li ,  Dunbo Yu ,  Kuoshe Li ,  Wenlong Yan ,  Jiajun Xie ,  Shuai Lu

IPC: H01F1/057 ,  H01F1/055 ,  H01F1/059

CPC classification number: H01F1/0578 ,  B22F1/0018 ,  B22F2001/0033 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/30 ,  H01F1/0551 ,  H01F1/0571 ,  H01F1/059 ,  H01F1/083 ,  B22F9/08 ,  B22F2009/0816 ,  B22F9/04 ,  B22F1/0085 ,  B22F1/0088 ,  B22F2201/02 ,  B22F2201/013 ,  B22F2201/016

Abstract: The application discloses a rare-earth permanent magnetic powder, a bonded magnet, and a device using the bonded magnet. The rare-earth permanent magnetic powder comprises 4 to 12 at. % of Nd, 0.1 to 2 at. % of C, 10 to 25 at. % of N and 62.2 to 85.9 at. % of T, wherein T is Fe or FeCo and the main phase of the rare-earth permanent magnetic powder is a hard magnetic phase with a TbCu7 structure. Material volatilization can be avoided effectively during a preparation process of the rare earth permanent magnetic powder, thus improving the wettability with a water-cooling roller during the preparation process and final prepared materials are provided with good magnetic properties.

Abstract translation: 本申请公开了稀土永磁粉末，粘结磁体和使用粘结磁体的装置。 稀土永磁粉由4〜12at。 ％的Nd，0.1〜2at。 C％，10〜25℃。 N的百分比为62.2〜85.9。 T的％，其中T是Fe或FeCo，稀土永磁粉的主相是具有TbCu7结构的硬磁相。 在稀土永磁粉的制备过程中可以有效地避免物质挥发，从而在制备过程中通过水冷辊提高润湿性，最终制备的材料具有良好的磁性能。

公开(公告)号：US12109551B2

公开(公告)日：2024-10-08

申请号：US17422691

申请日：2020-09-04

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  Rare Earth Functional Materials (Xiong 'an) Innovation Center Co., Ltd. ,  GRIREM HI-TECH CO., LTD.

Inventor： Xiaowei Huang ,  Yongqi Zhang ,  Hongwei Li ,  Zhizhe Zhai ,  Qiang Zhong ,  He Zhang ,  Meisheng Cui ,  Yongke Hou ,  Hao Wang ,  Zongyu Feng

IPC: B01J21/06 ,  B01J6/00 ,  B01J23/02 ,  B01J23/10 ,  B01J35/00 ,  B01J35/30 ,  B01J35/39 ,  B01J37/04 ,  F01N3/10

CPC classification number: B01J23/10 ,  B01J6/001 ,  B01J21/066 ,  B01J23/02 ,  B01J35/19 ,  B01J35/397 ,  B01J35/398 ,  B01J37/04 ,  F01N3/10 ,  F01N2570/14

Abstract: The present invention discloses a rare-earth-manganese/cerium-zirconium-based composite compound, a method for preparing the same, and a use thereof. The composite compound is of a core-shell structure with a general formula expressed as: A REcBaOb-(1-A)CexZr(1-x-y)MyO2-z, wherein 0.1≤A≤0.3, preferably 0.1≤A≤0.2; a shell layer has a main component of rare-earth manganese oxide with a general formula of REcMnaOb, wherein RE is a rare-earth element or a combination of more than one rare-earth elements, and B is Mn or a combination of Mn and a transition metal element, 1≤a≤8, 2≤b≤18, and 0.25≤c≤4; and a core has a main component of cerium-zirconium composite oxide with a general formula of CexZr(1-x-y)MyO2-z, wherein M is one or more non-cerium rare-earth elements, 0.1≤x≤0.9, 0≤y≤0.3, and 0.01≤z≤0.3. The composite compound enhances an oxygen storage capacity of a cerium-zirconium material through an interface effect, thereby increasing a conversion rate of a nitrogen oxide.

公开(公告)号：US11101057B2

公开(公告)日：2021-08-24

申请号：US15868063

申请日：2018-01-11

Applicant: GRIREM ADVANCED MATERIALS CO., LTD.

Inventor： Guiyong Wu ,  Yang Luo ,  Hongwei Li ,  Yuanfei Yang ,  Dunbo Yu ,  Ningtao Quan ,  Chao Yuan ,  Wenlong Yan

IPC: C22C38/00 ,  H01F1/059 ,  C23C8/24 ,  H01F1/08 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/28 ,  C23C8/26 ,  H01F41/02 ,  C22C33/02 ,  B22F9/04 ,  B22F9/08 ,  B22F3/02 ,  B22F5/00 ,  B22F1/00

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: SmxRaFe100-x-y-z-aMyNz, 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%.