Influence of Zr Additions on Microstructure and Magnetic Properties of Nanocomposite Nd10.5Fe78-xCo5ZrxB6.5 (x=0～5) Alloys
来源期刊：JOURNAL OF RARE EARTHS2005年第1期
论文作者：DONG Yuanda Qi Nannan Ni Jiansen Li Qiang TAN Xiaohua Xu Hui
Key words：materials science; nanocomposite alloy; grain size; magnetic properties; rare earths;
Abstract: The influence of Zr addition on the microstructure and magnetic properties of nanocomposite Nd10.5Fe78-xCo5ZrxB6.5 (x=0～5) alloys was investigated. It was found that the intrinsic coercivity could be significantly improved by the addition of 2% (atom fraction) Zr. The presence of small amount of amorphous phase is responsible for the low intrinsic coercivity for Zr-free alloy. The small amount addition of Zr may suppress the growth of grains of α-Fe and Nd2Fe14B phases. The more homogeneous microstructure with an average grain size of 20 nm can be obtained for Nd10.5Fe76Co5Zr2B6.5 alloy.
DONG Yuanda1，Qi Nannan1，Ni Jiansen1，Li Qiang1，TAN Xiaohua1，Xu Hui1
(1.Institute of Materials Science, Shanghai University, Shanghai 200072, China)
Abstract:The influence of Zr addition on the microstructure and magnetic properties of nanocomposite Nd10.5Fe78-xCo5ZrxB6.5 (x=0～5) alloys was investigated. It was found that the intrinsic coercivity could be significantly improved by the addition of 2% (atom fraction) Zr. The presence of small amount of amorphous phase is responsible for the low intrinsic coercivity for Zr-free alloy. The small amount addition of Zr may suppress the growth of grains of α-Fe and Nd2Fe14B phases. The more homogeneous microstructure with an average grain size of 20 nm can be obtained for Nd10.5Fe76Co5Zr2B6.5 alloy.
Key words:materials science; nanocomposite alloy; grain size; magnetic properties; rare earths;
【全文内容正在添加中】
