US 11,858,820 B2
Mn4C manganese carbide magnetic substance and manufacturing method therefor
Chul Jin Choi, Changwon-si (KR); Ping Zhan Si, Liaoning (CN); Ji Hoon Park, Changwon-si (KR); and Hui Dong Qian, Changwon-si (CN)
Assigned to KOREA INSTITUTE OF MATERIALS SCIENCE, Changwon-si (KR)
Appl. No. 16/764,768
Filed by KOREA INSTITUTE OF MATERIALS SCIENCE, Changwon-si (KR)
PCT Filed Nov. 15, 2018, PCT No. PCT/KR2018/014025
§ 371(c)(1), (2) Date Oct. 6, 2020,
PCT Pub. No. WO2019/098716, PCT Pub. Date May 23, 2019.
Claims priority of application No. 10-2017-0152556 (KR), filed on Nov. 15, 2017.
Prior Publication US 2021/0017030 A1, Jan. 21, 2021
Int. Cl. C01B 32/914 (2017.01); C01B 32/182 (2017.01); C01B 32/158 (2017.01); C01B 32/20 (2017.01); C01G 45/00 (2006.01); C22C 22/00 (2006.01)
CPC C01B 32/914 (2017.08) [C01B 32/158 (2017.08); C01B 32/182 (2017.08); C01B 32/20 (2017.08); C01G 45/00 (2013.01); C22C 22/00 (2013.01); C01P 2002/72 (2013.01); C01P 2006/42 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A Mn4C magnetic material showing diffraction peaks of (111), (200), (220), (311) and (222) crystal planes at 2θ values of 40°, 48°, 69°, 82° and 88°, respectively, in an XRD analysis.