中文摘要：

通过X射线衍射、差热-热重（DTA—TG）联用仪以及磁测量等手段研究了Sm2Fe17化合物及其氮化物的相结构和磁性。通过对Sm2Fe17化合物的DTA-TG分析可以得到：当温度从室温（约300K）升至1473K的过程中，在N2保护的条件下，N原子扩散进入Sm2Fe17化合物中，在温度为700K左右时Sm2Fe17化合物吸氮反应最剧烈，吸氮的结果使得Sm2Fe17。化合物的居里温度显著提高。随着温度的继续升高，在吸氮反应的同时，Sm2Fe17。化合物变的不稳定，部分分解为SmN化合物和Fe。对实验结果的分析可以得出，该化合物在接近熔点的1473K以下只存在Th2Zn17型结构，不存在Th2M17型结构。

英文摘要：

The structure and magnetic properties of SmEFe17 compound and its nitrides were investigated by means of differential thermal/thermogravimetric analysis. The result shows that the Curie temperature of SmEFe17Nx nitrides was improved obviously. The analysis shows that the increase of the Curie temperature was caused by interstitial N-atoms be incorporated into 3d-sublattice. At higher nitrogenized reaction of temperature than 700 K, the Sm2Fe17 became violent, in the meantime, the decomposed reaction of Sm2Fe17TNx took place and resuhsed in SmN compounds and α- Fe. The SmzFe17 or SmEFe17TNx exhibited only singlephases of ThzZn17 below 1473 K.