Magnetic Alignment Study of Hybrid Magnet Consisting of R-Rich and R-Lean Nd-Fe-B Alloys
A hybrid magnet was prepared by the hot-pressing and die-upsetting of the mixture of the R-rich NdxFe93.5-xGa0.5B6 (x= 13.5 and 11.8) alloy and the R-lean NdxFe93-xNb1B6 (x = 6, 9) alloy melt-spun ribbons. The microstructure and magnetic properties of the hybrid magnet were investigated. In the hot-pressed or die-upset hybrid magnet the R-rich and R-lean alloy regions existed independently without alloying between them. The two alloy regions in the die-upset hybrid magnet were coupled effectively via a magnetostatic interaction. A texture was developed only in the R-rich Nd2Fe14B single phase alloy region in the die-upset hybrid magnet, and this led to an anisotropic nature in die-upset hybrid magnet. The die-upset hybrid magnets containing higher Nd-content (13.5 at％) host alloy shows consistently a better magnetic alignment with respect to the magnets with lower Nd-content (11.8 at％) host alloy.
hybrid magnet magnetic alignment tezture Nd2Fe14B Nd2Fe14B/α-Fe nanocomposite
H.W.Kwon Y.Zhang G.C.Hadjipanayis
Pukyong National University, Busan, South Korea 608-739 University of Delaware, Newark, Delaware, USA 19716
国际会议
北京
英文
343-347
2006-08-29（万方平台首次上网日期，不代表论文的发表时间）