摘要
Nd15Fe77B8 永磁材料由具有极高磁单轴各向异性的化合物组成 .它的主相Nd2 Fe14 B呈四方相结构 ,其晶格常数 a=0 .880 nm,c=1.2 2 1nm,饱和磁感应强度值达1.61T,Nd15Fe77B8永磁性能为 :Br=1.2 3T,BHc=880 k A/ m,( BH) max=2 90 k J/ m3,Br的温度系数为 - 12 60× 10 -6/ K.
A permanent magnetic material Nd 15 Fe 77 B 8, which consists of compounds with extremely high magnetic performance and uniaxial anisotropy, was developed. Its main phase Nd 2Fe 14 B has a tetragonal phase structure, and its lattice constants is a=0 880 nm and c=1 221 nm, its saturated magnetic induction density is up to 1\^61 T. Nd 15 Fe 77 B 8 has the following properties: Br=1 23 T, BH c=880 kA/m,(BH) max =290 kJ/m 3 and the temperature cefficient of Br is -1 260×10 -6 /K.
出处
《广东有色金属学报》
2000年第2期121-124,共4页
Journal of Guangdong Non-Ferrous Metals
关键词
钕-铁-硼永磁材料
各向异性
磁性
Nd-Fe-B permanent magnetic material
anisotropy
magnetis
