A Study of Aluminum Coating on Sintered NdFeB Magnet
NdFeB permanent magnetic materials are nowadays widely used because of their excellent magnetic performance, lower price, and adequate source. Aluminum coating on NdFeB materials is a promising process to improve the corrosion resistance of NdFeB magnets. In this paper, aluminum films were deposited successfully on the surface of N45 sintered NdFeB magnet by DC magnetron sputtering. The samples have also undergone a vacuum heat treatment at a temperature of 800℃ for 6 hours, the study of the effect of heat treatment to aluminum layer structure is carried out After the heat treatment, the inter-diffusion phenomenon occurs in the components on both sides of the interface in the original sample, and a layer of NdPr-rich diffusion layer between the original Al films and the substrate, which is about 40μm thick.
NdFeB Aluminum coating magnetron sputtering coating heat treatment
SUN Bao-yu BA De-chun XU Xiao-rong FANG Ye DUAN Yong-li YUE Xiang-ji LIAN Fa-zeng YANG Bin
School of Mechanical Engineering and Automation, NEU, Shenyang, 110004 Shenyang General Magnets Co., Ltd., Shenyang, 110168 ULVAC Vacuum Furnace(Shenyang) Co., Ltd., Shenyang, 110168 School of Materials and Metallurgical, NEU, Shenyang, 110004
国际会议
沈阳
英文
107-111
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）