Study on synthesis and magnetic properties of Nd-Fe-B alloy via reduction-diffusion process
Synthesis of amorphous Nd-Fe-B nanoparticles under an aqueous borohydride solution and the magnetic behavior of the amorphous structure after mild heat treatment with CaH2 have been studied. The ultra-fine Nd-Fe-B nanoparticles were first synthesized from reduction of FeCl2 and NdCl3 using NaBH4 as a reducing agent in aqueous solution. The as-prepared precipitates, which were composed of Fe-B phase and Nd oxide phase, were then mixed with calcium hydride. The Nd oxide in the precipitates was reduced by CaH2 and then Nd diffused into the Fe-B phase via reduction-diffusion process. After the as-obtained Nd-Fe-B material was washed with acetic acid, its magnetic property was measured showing its ferromagnetic behavior.
C W Km Y H Km H G Cha Y S Kang
Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Korea
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
321-325
2007-05-16（万方平台首次上网日期，不代表论文的发表时间）