添加元素Si、Ti对各向异性NdFeCoB磁粉磁性能的影响  

Effects of Si and Ti on the Properties of NdFeCoB Magnetic Powder

作　　者：罗玉亮[1] 林培豪[1] 

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004

出　　处：《电工材料》2011年第1期31-34,共4页Electrical Engineering Materials

基　　金：广西自然科学基金项目(0310001)

摘　　要：采用HDDR技术制备NdFeCoB磁各向异性磁粉,研究了添加元素Si、Ti对HDDR各向异性Nd15Fe66Co12B7磁粉磁性能及磁各向异性的影响。结果表明,随着Si含量的增加,磁粉的剩磁和磁各向异性均为先增加后降低,并且都在Si含量为1.0%时达到最大值,矫顽力则随着Si含量的增加而降低;加入少量的Ti,其剩磁和磁各向异性均增加,但当Ti含量大于0.3%时,两者均降低;矫顽力随Ti的增加而降低,当Ti含量大于0.6%时,矫顽力稍有提高,但增幅不大。The technique of HDDR was adopted to prepare anisotropic magnetic powder of NdFeCoB.The effects of Si and Ti on the magnetic properties and anisotropy of the NdFeCoB magnetic powder were studied.The results showed that when Si contents increase in NdFeCoB magnetic powder,the Br and DOA first increase and then decrease and all reach the maximum value at Si is 1.0%,but Hcj has been decreased;Adding a small bit of Ti,Br and DOA increase.When Ti more than 0.1%,both decrease,Hcj decrease as Ti increase,when Ti more than 0.6%,Hcj increase,but not very more.

关 键 词：HDDR NdFeCoB磁粉 各向异性 磁性能 

分 类 号：TM273[一般工业技术—材料科学与工程] TG132.272[电气工程—电工理论与新技术]