Physical Properties of the Rare Earth Metals

The 3rd group metals a summary of their atomic and physical properties 5.5.5.1 The rare earth metals. A summary of the main atomic and physical properties of the rare earth metals has been collected in Tables 5.11-5.13. To complete the information and the presentation of the entire series of lanthanides the data relevant to Eu and Yb have been included in these tables. However, the same data are reported also in Table 5.7 in comparison with those of the other typical divalent metals (the alkaline earth metals). As for the properties of liquid rare earth metals and alloys see Van Zytveld (1989). 

Physical Properties of the Rare Earth Metals TABLE 12. Liquid Metal Properties near the Melting Point... 

PHYSICAL PROPERTIES OF THE RARE EARTH METALS KA. Gschneidner, Jr. 

The interest in a wide range of rare earth-based intermetallic compounds, each with individual physical and metallurgical properties, presents the crystal grower with problems over and above those already encountered in discussion of the elements themselves. The use of UHV-rated environments and crucible-less techniques to minimise contamination is of paramount importance in the preparation of high purity rare earth elements. Adoption of the same stringent criteria is not always possible in the production of rare earth intermetallic compounds. The preparation technique employed has to take into account not only the physical properties of the rare earth metal, but also those of the other constituent(s) which can present equally difficult problems, e.g. the vapour pressure of molten zinc or the reactivity of molten Fe with W, a commonly used crucible material. These other constituent(s) also provide an additional potential source of contamination which can influence the quality of the compound prepared. Frequently, the main... 

---