nanocomposite; temperature coefficient; magnetic

作者:张士岩;徐晖;谭晓华;倪建森;董远达;
关键词:nanocomposite; temperature coefficient; magnetic

properties; Zr addition
单位:Institute of Material Science  Shanghai University,Institute

of Material Science Shanghai University,Institute of Material

Science Shanghai University,Institute of Neodymium Magnets Material Science

Shanghai University,Institute of Material Science Shanghai

University,,Shanghai 200072,China,Shanghai 200072,China,Shanghai

200072,China,Shanghai 200072,China,Shanghai 200072,China
摘要:The influence of Zr addition on magnetic properties and

temperature coefficient for nanocomposite Nd10Fe78.5-xCo5ZrxB6.5

(x=0～4) bonded magnets was investigated. It was found that the

room-temperature magnetic properties were remarkably improved

with Zr addition due to the grain refinement and increasing

volume fraction of the hard magnetic phase. The optimal magnetic

properties of Jr=0.689 T, iHc=769.4 kA·m-1 and (BH)max=84 kJ·m

-3 were obtained for 2.5% Zr http://www.999magnet.com/products/110-sintered-neodymium-magnets addition. The temperature

coefficient of remanence (α) increases slightly and the

temperature coefficient of coercivity (β) decreases obviously

with increasing Zr content for nanocomposite Nd10Fe78.5-

xCo5ZrxB6.5 (x=0～4) bonded magnets.