Physical properties

edit

Bulk properties

edit

Neodymium is a rare-earth metal with a density similar to zinc. It has a boiling point of 3074 °C


Neodymium was present in the classical mischmetal at a concentration of about 18%. To make neodymium magnets it is alloyed with iron, which is a ferromagnet.[1] Metallic neodymium has a bright, silvery metallic luster.[2]

Atomic stucture

edit

Neodymium commonly exists in two allotropic forms, with a transformation from a double hexagonal to a body-centered cubic structure taking place at about 863 °C.[3]

Magnetism & more

edit

Neodymium, like most of the lanthanides, is paramagnetic at room temperature and becomes an antiferromagnet upon cooling to 20 K (−253.2 °C).[4]

  1. ^ Stamenov, Plamen (2021), Coey, J. M. D.; Parkin, Stuart S.P. (eds.), "Magnetism of the Elements", Handbook of Magnetism and Magnetic Materials, Cham: Springer International Publishing, pp. 659–692, doi:10.1007/978-3-030-63210-6_15, ISBN 978-3-030-63210-6, retrieved 2023-06-07
  2. ^ Manutchehr-Danai, Mohsen, ed. (2009), "neodymium", Dictionary of Gems and Gemology, Berlin, Heidelberg: Springer, pp. 598–598, doi:10.1007/978-3-540-72816-0_15124, ISBN 978-3-540-72816-0, retrieved 2023-06-09
  3. ^ Haynes, William M., ed. (2016). "Neodymium. Elements". CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. p. 4.23. ISBN 9781498754293.
  4. ^ Andrej Szytula; Janusz Leciejewicz (8 March 1994). Handbook of Crystal Structures and Magnetic Properties of Rare Earth Intermetallics. CRC Press. p. 1. ISBN 978-0-8493-4261-5.