%0 Journal Article
%T DIFFUSION OF NITROGEN ATOMS DURING PREPARING Sm_2Fe_(17)N_y MAGNETS BY GAS-SOLID REACTION METHOD<br>气—固相反应法制备Sm2Fe17Ny永磁合金过程中氮原子的扩散
%A 周寿增
%A 于申军
%A 张茂才
%A 王润
%A 林国标
%A 尹有祥
%A 林毅
%J 金属学报
%D 1996
%I 
%X The diffusion behaviour of N atoms in Sm2Fe17 alloys has been studied. The relationship between the diffusion temperature, the diffusion time with average coneentration of N in samples and the distribution of N concentration in powder particle have been measured. The frequency factor D0 and activation energy Q for N atoms diffusion in Sm2Fe17 particle have been calculated. Using Fick second diffusion law the distribution of N concentration in Sm1Fe17 particles and the relationship between the distribution of N concentration with diffusion temperature, diffusion time and particle size are calculated. The calculated results are consistent with experimental results. Correspondent: (ZHOU Shouzeng, professor, State Key Laboratory of Advanced Melallic Materials, University of Science and Technology Beijing, Beijing 100083)
%K Sm_2Fe_(17)N_y magnets
%K gas-solid phase reaction
%K nitrogen atom
%K diffusion<br>气－固相反应
%K 氮原子
%K 扩散
%K 永磁合金
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=B15281E45876614A227A616B17D37379&yid=8A15F8B0AA0E5323&vid=9971A5E270697F23&iid=5D311CA918CA9A03&sid=A766A50385B9FB1F&eid=899CC9158FC43EF4&journal_id=0412-1961&journal_name=金属学报&referenced_num=2&reference_num=2