Al – Ca (Aluminum – Calcium)

Jean-Claude Tedenac, Dmytro Kevorkov, Tamara Velikanova

Literature Data

The literature up to 1988 has been assessed by [1988Itk] and has been accepted in [Mas2]. Two intermetallics, CaAl₄ and CaAl₂ were cited. [1993Mil] measured the low temperature structural phase transition of AlCa₄. A single phase sample has been prepared from the elements and after heat treatment in sealed Ta crucibles. No information can be found on the purity of the starting materials. [1998Hua] reported two new intermetallic compounds, Ca₁₃Al₁₄ and Ca₈Al₃. Single phase samples have been prepared by arc-melting under Ar and subsequent heat treatment in Ta crucibles starting from the pure elements (99.99 mass% Ca, 99.999 mass% Al). Additionally, their electrical and magnetic properties have been determined and compared to theoretical band stru...