TY - JOUR
T1 - The fluorite-related "solid solutions" of CeO2Y2O3 II
T2 - A modulated structure approach
AU - Withers, R.L.
AU - Wallenberg, R
AU - Bevan, D.J.M.
AU - Thompson, J.G
AU - Hyde, B.G.
PY - 1989/12/1
Y1 - 1989/12/1
N2 - The structural description of any particular member of the CeO2Y2O3 solid solution series reduces to the determination of compositional and displacement eigenvectors associated with two sets of modulation wave-vectors. The primary modulations are associated with oxygen (vacancy) ordering and the second-harmonic modulations with metal atom ordering —both with concomitant structural relaxation. With increasing yttria content, the two-phase region at about 60 mol.% YO1.5 is ascribed to the sudden onset of compositional and/or displacive modulation associated with the second-harmonic modulations.
AB - The structural description of any particular member of the CeO2Y2O3 solid solution series reduces to the determination of compositional and displacement eigenvectors associated with two sets of modulation wave-vectors. The primary modulations are associated with oxygen (vacancy) ordering and the second-harmonic modulations with metal atom ordering —both with concomitant structural relaxation. With increasing yttria content, the two-phase region at about 60 mol.% YO1.5 is ascribed to the sudden onset of compositional and/or displacive modulation associated with the second-harmonic modulations.
U2 - 10.1016/0022-5088(89)90403-7
DO - 10.1016/0022-5088(89)90403-7
M3 - Article
SN - 0022-5088
VL - 156
SP - 17
EP - 27
JO - Journal of the Less-Common Metals
JF - Journal of the Less-Common Metals
IS - 1-2
ER -