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1、前言金属钐(Sm)是轻稀土金属的重要产品之一,具有特殊的物化性质。它的熔点10740C,沸点17940C,硬度45~65HB,密度7.536g/ml,延展性好而易于加工成材。它的金属化学性很强,在一定外界条件作用下,易与氧、氢、氮、硫、碳等相互作用而生成相应的化合物(如Sm2O3,SmH3和SmN等),与
1, Preface Samarium metal (Sm) is one of the important products of light rare earth metals, with special physicochemical properties. Its melting point of 10740C, the boiling point of 17940C, hardness 45 ~ 65HB, density 7.536g / ml, good ductility and easy processing. Its metal chemistry is very strong. Under certain external conditions, it easily interacts with oxygen, hydrogen, nitrogen, sulfur and carbon to generate corresponding compounds (such as Sm2O3, SmH3 and SmN), and