Nd_(21)Pr_7Gd_4Fe_(66.02)Cu_(0.2)Al_(0.7)B_(1.08)磁体添加纳米粉MgO研究  

Research on Nd_(21)Pr_7Gd_4Fe_(66.02)Cu_(0.2)Al_(0.7)B_(1.08) Magnet Adding Nano Powder MgO

作　　者：管立斌[1] 杨俊杰[1] 张宏超[2] 

机构地区：[1]中国电子科技集团公司第三十三研究所,山西太原030006 [2]太原科技大学,山西太原030024

出　　处：《山西冶金》2015年第3期13-16,共4页Shanxi Metallurgy

基　　金：山西省自然科学基金项目(2013091005-0106)

摘　　要：研究了添加纳米粉Mg O对Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08磁体的影响。通过扫描电镜能谱研究分析可知,纳米粉Mg O主要分布于磁体的晶界相当中。通过XRD分析可知:添加w(Mg O)=0.2%的纳米粉Mg O,磁体主晶粒(006)晶向晶粒发育良好,晶粒取向度较好;添加w(Mg O)=0.2%的纳米粉Mg O,磁体Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08有最高的剩磁(1.204 T);添加w(Mg O)=0.4%纳米粉Mg O,磁体Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08有最高的矫顽力(11.70 k A/m);添加Mg O的磁体比未添加Mg O的磁体耐腐蚀性要好。This paper studies the effects of adding nano Mg O powder on Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08 magnet.Research by SEM and EDS analysis show. nano powder Mg O is mainly in the grain boundary of magnets. By XRD analysis and adding 0.2% Mg O magnets main crystal grain（006）orientation are well developed with better crystal orientation. The Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08 magnet of adding 0.2% Mg O has the highest residual magnetic flux density of 1.204 T, adding 0.4% Mg O magnet has the highest coercivity of 11.71 KA m-1; magnet adding Mg O corrosion resistance is better than that without the addition of Mg O magnet.

关 键 词：纳米粉MgO 显微组织 磁性能 耐腐蚀性能 Nd21Pr7Gd4Fe66.02Cu0.2Al0.7B1.08 

分 类 号：TG132.27[一般工业技术—材料科学与工程]