좌용호
2019-11-26T07:23:10Z
2019-11-26T07:23:10Z
2019-05
APPLIED SURFACE SCIENCE, v. 475, Page. 986-989
0169-4332
1873-5584
https://www.sciencedirect.com/science/article/pii/S0169433219300418
https://repository.hanyang.ac.kr/handle/20.500.11754/114752
Sm2Co17 particles, with several hundreds of nanometers to a few micrometers in diameter, were synthesized by a combination of salt-assisted ultrasonic spray pyrolysis and a reduction-diffusion (R-D) process. It was found that NaCl plays a decisive role toward the suppression of particle coalescence during R-D process. By optimizing a reductant contents, the single-phased and non-agglomerated Sm2Co17 particles were obtained. In addition, particle size was controlled by varying calcination temperature from 800 degrees C to 1100 degrees C and size-dependent magnetic properties were observed. The optimum magnetic properties were achieved at a calcination temperature of 900 degrees C: coercivity of 5.3 kOe, a saturation magnetization of 99.33 emu/g, and a remanence of 56.53 emu/g.
This research was supported by the Future Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M3D1A1027836)
en_US
ELSEVIER SCIENCE BV
Samarium cobalt
Permanent magnet
Spray pyrolysis
Molten salt process
Reduction-diffusion process
Magnetic property
Synthesis and Magnetic Properties of Sm2Co17 Particles using Salt-assisted Spray Pyrolysis and a Reduction-Diffusion Process
Article
475
10.1016/j.apsusc.2019.01.030
986-989
APPLIED SURFACE SCIENCE
Hwang, Tae-Yeon
Lee, Jimin
Kang, Min Kyu
Lee, Gyutae
Kim, Jongryoul
Choa, Yong-Ho
2019002990
E
COLLEGE OF ENGINEERING SCIENCES[E]
DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING
choa15