http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Chunfa Liao (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Magnetic Properties and Microstructure of DyAlCu-diffusion Sintered Nd-Fe-B Magnets
Chunfa Liao,Xun Zhou,Peng Jiang,Zhiyong Zeng,Lianghua Que 한국자기학회 2022 Journal of Magnetics Vol.27 No.2
The ability to improve the coercivity of sintered Nd-Fe-B diffused by Dy-Al-Cu alloy derived from electrolysis in a fluoride salt-oxide system was evaluated. The results show that with the increase in heat treatment time, the coercivity of the magnet firstly increased and then decreased. Holding at 900 ℃ for 4 h, tempering at low temperature for 3 h at 550 ℃, the coercivity of GBDPed magnet increased by 44.34 %, the remanence decreased by 1.26 %, the Dy-rich shell phase was recognizable, and the Nd-rich phase evenly distributed. Electron microscope analysis showed that when the GBDP time was longer than 4h, the diffusion of Dy from the shell phase to the matrix phase dominated, decreasing the coercivity with the increase in the diffusion time. The increase of Fe content in the grain boundary phase enhanced the exchange coupling between grains, which also reduced the coercivity of the GBDPed magnet. The infiltration of the matrix phase by excessive Dy and deterioration of (00L) texture of Nd-Fe-B resulted in the reduction of the remanence and the maximum energy product.
-
Leaching Behavior of the Main Metals of Decopperized Anode Slime
Zhou Xun,Liao Chunfa,Liu Fupeng,Zeng Yanliang 한국화학공학회 2024 Korean Journal of Chemical Engineering Vol.41 No.9
Clarifying the occurrence state and embedding characteristics is the primary task to investigate the leaching behavior of the main metals in decopperized anode slime. Electron probe microanalysis, thermodynamic analysis, and leaching experiments were used to determine the optimum conditions for effi cient one-step separation of the scattered and precious metals (SPMs) from base metals. The result shows that the leaching effi ciencies of Te, Au, Pt, and Pd were 97.69%, 100.79%, 94.47%, and 100.38%, respectively. Moreover, there was scarcely leaching of Pb, Sn, Sb, and Ag, with most of Bi and As remaining in the residue. Te, Au, Pt, and Pd enriched in a targeted manner. This work presents that it is useful in the analysis of the phenomena in copper anode slime hydrometallurgy and provides a short process technology for treating the decopperized anode slime.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
