Effect of casting methods on magnetic properties of Sm(CoFeCuZr)z magnet
Source abstract
Abstract
The effect of casting method on the magnetic properties of Sm(Co0.63Fe0.28Cu0.07Zr0.02)7.6 magnet has been investigated. The results show that the plate-mold ingot (PM) and strip-casting flake (SC) have the same phase composition. Compared with PM, the SC has a smaller grain size and larger fine-grain region due to its larger degree of undercooling. The magnetic properties of the PM magnet are Br = 11.63 kG, Hcj = 25.65 kOe, (BH)max = 30.97 MGOe, while the magnetic properties of SC magnet are Br = 11.45 kG, Hcj = 24.00 kOe, (BH)max = 30.03 MGOe. The reason for the low remanence of the SC magnet is revealed by the XRD and EBSD results. It shows that the PM magnet has a better easy-axis orientation than the SC magnet, due to the existence of fine grains in SC that are unfavorable for the alignment under a magnetic field.
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Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic Properties and Applications · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology 1 , Beijing 100124, China
School of Mechanical Engineering, Anyang Institute of Technology 2 , Anyang 455000, China
Funding
National Natural Science Foundation of China
References (25)
Show source-provided references
1. Family of new cobalt-base permanent magnet materials10.1063/1.1709459 ↗
2. Intermetallic compounds in the system samarium-cobalt10.1016/0022-5088(68)90037-4 ↗
3. Microstructure and properties of step aged rare earth alloy magnets10.1063/1.328987 ↗
4. Abnormal temperature dependence of intrinsic coercivity in sintered Sm–Co-based permanent magnets10.1063/1.372822 ↗
5. Correlation of microchemistry of cell boundary phase and interface structure to the coercivity of Sm(Co0.784Fe0.100Cu0.088Zr0.028)7.19 sintered magnets10.1016/j.actamat.2016.12.050 ↗
6. 2:17-type SmCo quasi-single-crystal high temperature magnets10.1063/1.4918939 ↗
7. Behavior of some heavy and light rare earth-cobalt magnets at high temperature10.1063/1.1453324 ↗
8. Mechanism of phase transformation in 2:17 type SmCo magnets investigated by phase stabilization10.1016/j.scriptamat.2015.10.041 ↗
9. The microstructure and magnetic characteristics of Sm(CobalFe0.1Cu0.09Zr0.03)7.24 high temperature permanent magnets10.1016/j.scriptamat.2017.01.026 ↗
10. Revealing on metallurgical behavior of iron-rich Sm(Co0.65Fe0.26Cu0.07Zr0.02)7.8 sintered magnets10.1063/1.4978464 ↗
11. Microstructure of precipitation hardened cobalt rare earth permanent magnets10.1016/0304-8853(82)90264-5 ↗
12. Sm2(Co,Fe,Cu,Zr)17 magnets with higher Fe content10.1109/20.42433 ↗
13. Effects of solution temperature and Cu content on the properties and microstructure of 2:17-type SmCo magnets10.1016/j.jallcom.2017.11.009 ↗
14. Effect of grain size on microstructure and magnetic properties of Sm2(Co,Cu,Fe,Zr)17 permanent magnets10.1016/j.matchemphys.2016.05.033 ↗
15. Microstructure and magnetic properties of Sm(CobalFe0.28Cu0.06Zr0.02)7.84 magnet prepared by hydrogen decrepitation and mechanical crushing10.1109/tmag.2017.2696495 ↗
16. Effect of ingot cooling rate on Cu distribution and magnetic properties of Sm(CobalFe0.28Cu0.07Zr0.03)7.6 magnets10.1063/1.5129804 ↗
17. Proven technologies on high-performance Nd–Fe–B sintered magnets10.1016/j.jallcom.2005.04.169 ↗
18. Effect of temperature gradient on the microstructure of the rapidly solidified Nd–Fe–B strips10.1109/tmag.2011.2146761 ↗
19. Influence of cooling roll roughness on nucleation and growth of primary crystals in strip cast Nd–Fe–B alloy10.2320/matertrans.f-m2016830 ↗
20. Influence of additional cooling of casted strips on magnetic properties of Nd-Fe-B sintered magnets10.1007/s12540-018-0147-y ↗
21. Optimization of temperature coefficient of remanence and magnetic properties of sintered Sm0.7Dy0.1Gd0.2(CobalFe0.2Cu0.08Zr0.025)7.2 magnets prepared by strip-casting technique10.1109/tmag.2013.2274961 ↗
22. Effect of strip casting on microstructure and magnetic properties of 2:17 type Sm–Co sintered magnets10.1109/tmag.2013.2276064 ↗
23. Effect of Cu redistribution in grain boundary on magnetic properties of Sm(Co0.665Fe0.25Cu0.06Zr0.025)7 permanent magnets10.1016/j.jallcom.2018.01.164 ↗
24. Effect of hydrogen pressure on hydrogenation and pulverization behavior of Sm(CoFeCuZr)z ingot and strip casting flake10.1016/j.jallcom.2022.167427 ↗
25. Isothermal aging–microstructure–property relationship of SmCo 2:17 magnets10.1179/174328406x131046 ↗