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Sm‐Fe‐Ti magnets with room‐temperature coercivities above 50 kOe

 

作者: K. Schnitzke,   L. Schultz,   J. Wecker,   M. Katter,  

 

期刊: Applied Physics Letters  (AIP Available online 1990)
卷期: Volume 56, issue 6  

页码: 587-589

 

ISSN:0003-6951

 

年代: 1990

 

DOI:10.1063/1.103306

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Using mechanical alloying and an additional annealing, we prepared bulk material of a new Sm20Fe70Ti10phase observed before only in sputtered films deposited in the amorphous state and then crystallized. Crystallization of rapidly quenched and partially amorphous ribbons leads to a two‐phase material with a considerable amount of this phase but with the Fe2Sm phase as a majority phase. This new phase (named 20:70:10 phase) has a Curie temperature of 380 °C and an estimated saturation magnetization of 6–7 kG. The magnetically isotropic, mechanically alloyed samples show room‐temperature coercivities of up to 50.3 kOe.

 

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