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Lattice Parameters of (U,Pu)N Solid Solutions
Author(s) -
TENNERY V. J.,
BOMAR E. S.
Publication year - 1971
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1971.tb12281.x
Subject(s) - solid solution , lattice constant , impurity , lattice (music) , analytical chemistry (journal) , materials science , chemistry , thermodynamics , physics , chromatography , metallurgy , diffraction , optics , organic chemistry , acoustics
The lattice parameters of the cubic solid solutions from the system (U 1‐∞ Pu ∞ )N were measured at 25°C. The lattice constant, a 0 , of UN was 4.88918±0.00017 Å and that of PuN was 4.90476±0.00008 Å. The parameter of the solid solution does not depend linearly on the composition parameter, x. The X‐ray specimens contained from 600 to 1200 ppm total O+C as impurities; thus, these samples had much lower impurity levels than those of previous investigators. The compositions of the X‐ray specimens were corroborated by quantitative chemical analysis. The significant deviation from Vegard's relation and the small variation observed for a 0 , in this system are discussed in terms of the strongly hybridized electron f–d bands that have been calculated for these compounds.