X-Ray Study on Solid Solutions of Oxygen in Hafnium.

Tore Dagerhamn, P. Thoresen, Anna‐Britta Hörnfeldt, T. Kubota, Viggo Køgs Andersen, Aage Jart

Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry · 1961 · 19 citations · 0 references

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Abstract

The solubility of oxygen in the hexagonal close-packed modification of hafnium is investigated. The introduction of oxygen in solid solution increases the hafnium lattice parameters a and c over the entire range of solubility. The axial ratio c/a, however, is practically constant after a slight rise at low oxygen contents. The limit of solubility was found to be 20.6 at.% (HfO/sub 0// sub .//sub 2//sub 6/). Samples with higher oxygen contents contain dioxide as an additional phase. (N.W.R.)