Extraction of Sm from Sm-Fe-N magnets by the glass slag method
Extraction of Sm from Sm-Fe-N magnets by the glass slag method
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DOI：
10.1016/j.jallcom.2005.05.029
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发表时间：
2005-11
影响因子：
6.2
通讯作者：
T. Saito;Hironori Sato;T. Motegi;Kurima Kobayashi
中科院分区：
文献类型：
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作者：
T. Saito;Hironori Sato;T. Motegi;Kurima Kobayashi
采用三氧化二硼玻璃渣法成功地将Sm-Fe-N合金分离为金属组分和渣组分。X射线衍射和磁性测量表明，金属组分由α-Fe相组成，渣组分由BN和含Sm的非晶态物质组成。化学分析证实，金属组分中的Sm含量非常有限，炉渣组分中含有大量的钐。BN相的形成被认为是在玻璃渣过程中Sm 2Fe 17 N3相在高温下分解的SmN与三氧化二硼之间的反应。
Sm–Fe–N alloys were successfully separated into the metallic component and the slag component by the glass slag method using boron trioxide. X-ray diffraction and magnetic measurements revealed that the metallic component consisted of α-Fe phase and that the slag component consisted of BN and Sm-containing amorphous materials. The chemical analyses confirmed that the Sm content in the metallic component was very limited and the slag component contained a large amount of samarium. The formation of the BN phase was believed to be the reaction between SmN, decomposed from Sm2Fe17N3phase at high temperatures, and boron trioxide during the glass slag process.