Abstract
The compound Nd 2 Hf 2 O 7 was synthesized via a solid-state route and the crystal structure determined by electron diffraction and Rietveld refinement of both X-ray and neutron diffraction data. A small amount of disorder was found on the anion sublattice, while no evidence of disorder in the cation sublattice could be verified. The compound is cubic with space group Fd 3 m , structurally lying between the ideal pyrochlore and fluorite forms, with 0.26% of the oxide ions residing on the 8 a sites usually vacant in pyrochlores. The lattice constant is 10.6469(2) Å, and the overall fit parameter was R wp =0.0398.
Original language | American English |
---|---|
Journal | Materials Science and Engineering Faculty Publications and Presentations |
State | Published - 1 Jan 2008 |
EGS Disciplines
- Materials Science and Engineering