Effect of niobium on thermal stability and impact toughness of Nd-Fe-B magnets with ultra-high intrinsic coercivity |
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| Authors: | HU Zhihua LIU Guojun WANG Huijie |
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| Affiliation: | HU Zhihua,LIU Guojun,WANG Huijie(1.Department of Materials Engineering,Hubei University of Automotive Technology,Shiyan 442002,China,2.Division of Functional Materials,Central Iron & Steel Research Institute,Beijing 100081,China) |
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| Abstract: | The effects of Nb on the thermal stability and impact toughness of ultra-high intrinsic coercivity of Nd-Fe-B magnets were investigated.The results showed that the addition of Nb could improve the thermal stability,and obviously increased the impact toughness of sintered Nd-Fe-B magnets.The optimum thermal stability of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.0 at.%.The maximum impact toughness of sintered Nd-Fe-B magnets was obtained when the content of Nb was 1.5 at.%,but the mag... |
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| Keywords: | impact toughness magnetic properties ultra-high intrinsic coercivity sintered Nd-Fe-B magnets rare earths |
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