Low temperature measurements of the hard magnetic materials.
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资源简介：
Hard magnetic materials can be used at low temperatures down to the spin reorientation temperature, Tsr, (eg. around 135 K for Nd-Fe-B). In order to extend the lower limit of usage it is desired to decrease the value of Tsr. This paper reports the influence of different additions and substitutions (Mo, Mo-Cu, Ce) on the hard magnetic properties and Tsr of Nd-Fe-B based films prepared by vacuum deposition. The influence of embedding mode (by alloying or stratification) of additions (i.e. MoCu) in the Nd-Fe-B thin film volume on hard magnetic properties Tsr was also studied. The Nd-Fe-B films with MoCu additions, embedded by stratification, present an increase of the coercive field up to 23.9 kOe and a decrease of Tsr down to 56 K, while Nd-Fe-B films with Ce substitution present a slight deterioration of the magnetic properties and a decrease of Tsr down to 97 K.
提供机构：
International Institute of Refrigeration (IIR)
创建时间：
2016-07-22
