中文版    |     English

Word: Magnetic Materials ndfeb magnet

Press center
Contact

Website:www.ohnknb.live
Tel:+86-750-3868783
Tel:+86-750-3868786
Fax:+86-750-3868789  
E-mail:[email protected] 
Contact: Sam Tan,Vicky Zhong

Home » Press center
Neodymium magnet
Posted by:    Release time:  
A neodymium magnet (also known as NdFeB, NIB, or Neo magnet), the most widely used[ type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure. Developed in 1982 by General Motors and Sumitomo Special Metals, neodymium magnets are the strongest type of permanent magnet made.  They have replaced other types of magnet in the many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners.
The tetragonal Nd2Fe14B crystal structure has exceptionally high uniaxial magnetocrystalline anisotropy (HA~7 teslas). This gives the compound the potential to have high coercivity (i.e., resistance to being demagnetized). The compound also has a high saturation magnetization (Js ~1.6 T or 16 kG) and typically 1.3 teslas. Therefore, as the maximum energy  density is proportional to Js2, this magnetic phase has the potential for storing large amounts of magnetic energy (BHmax ~ 512 kJ/m3 or 64 MG?Oe), considerably more than samarium cobalt (SmCo) magnets, which were the first type of rare earth magnet to be commercialized. In practice, the magnetic properties of neodymium magnets depend on the alloy composition, microstructure, and manufacturing technique employed.
Previous: NO
Next: NO
四川时时彩走势图 nba比分网魔术猛龙 麻将下载赢红包真人版 交流群全天赛车pk10免费计划 快乐十分选一数投技巧 湖北11选5 11选5利用和值投注技巧 安徽25选5开奖查询 球探篮球比分直播 快三有什么规律 河北快3 澳客彩票网是正规的吗 500彩票网靠谱么 新疆11选5基本走势图百度彩票 广东时时11选五技巧稳赚方法 体彩四川金7乐 10月7日足球比分