http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Magnetic Hardening of Rapidly Solidified SmFe7+xMx (M=Mo, V, Ti) Compounds
박언병(E. B. Park),최승덕(S. D. Choi),양충진(Choong Jin Yang) 한국자기학회 1994 韓國磁氣學會誌 Vol.4 No.3
Rapidly solidified SmFe_(7+x)M_x (M = Mo, V, Ti) compound were found to crystallize in the Sm(Fe, M)_7 based stable magnetic phase by introducing a second transition element into the Sm-Fe binary system. The Sm(Fe, M)_7 phase exhibits the highest Curie temperature(Tc = 355℃) ever known in the Sm-Fe magnetic systems with a quite high intrinsic coercivity(iHc = 3 ~ 6 kOe). The Sm(Fe, M)_7 phase remains stable even after annealing if once form during the rapid solidification. The primary reason for the high coercive force is due to the fine grain size(2000 ~ 8000 Å) of the magnetic Sm(Fe, M)_7 matrix phase, and the enhanced Curie temperature is attributed to the extended solid-solubility of the additive transition elements in Fe matrix, which leads to volume expansion of the Sm(Fe, M)_7 cell causing an enhanced coupling constant of Fe atoms.