Mössbauer spectroscopy of lanthanon-tin and iron-tin phases and their reaction products with carbon and nitrogen
作者:T. Gibb、N.N. Greenwood、B. Mortimer、I.J. McColm
DOI:10.1016/0022-1902(71)80042-8
日期:1971.9
Mössbauer parameters have been obtained at 80°K for a number of lanthanon-tin and iron-tin phases, including Ce3Sn, Ce2Sn, Ce2Sn3, CeSn3, Pr3Sn and Fe3Sn. These data have been used in conjunction with other studies to help clarify the phase relationships in the Ln-Sn systems. Reaction of substoichiometric quantities of carbon with the binary alloys Ce3Sn and Pr3Sn and the mixed phases of composition
已在80°K下获得了许多镧锡和铁锡相的Mössbauer参数,包括Ce 3 Sn,Ce 2 Sn,Ce 2 Sn 3,CeSn 3,Pr 3 Sn和Fe 3 Sn。这些数据已与其他研究一起使用,以帮助阐明Ln-Sn系统中的相位关系。亚化学计量的碳与二元合金Ce 3 Sn和Pr 3 Sn以及组成成分La 3 Sn和Ho 3 Sn的混合相反应生成单相产物Ln 3 SnCPin x(x≤0·66);过量的碳会完全分解为Ln 2 C 3和Sn。相反,Ln 3 Sn与过量的氮反应生成LnN和LnSn 3。在氮含量有限的情况下,似乎会形成立方三元相Ln 2 SnN x。有关结合的更多信息来自对Fe 3 Sn和Fe 3 SnC的57 Fe和119 SnMössbauer光谱的比较。