The atomic structure of iron phosphate glasses containing uranium has been studied by complementary neutron and x-ray scattering techniques. by combining x-ray and neutron structure factors, detailed information about different pair interactions has been obtained. Most of the basic structural features such as coordination numbers and O-O and P-O distances in uranium containing glasses are the same as those in the base glass of batch composition 40Fe2O3-60P2O5 (mol %). However, the Fe-O distances change slightly with the addition of uranium. The observed structural parameters support a structural model in which the waste elements occupy voids in the Fe-O-P network, hence, not altering the basic structure of the parent iron phosphate glass.
M. Karabulut et al., "A High Energy X-Ray and Neutron Scattering Study of Iron Phosphate Glasses Containing Uranium," Journal of applied Physics, American Institute of Physics (AIP), Mar 2000.
The definitive version is available at http://dx.doi.org/10.1063/1.372160
Materials Science and Engineering
Argonne National Laboratory
United States. Department of Energy. Office of Basic Energy Sciences
United States. Department of Energy
Keywords and Phrases
Atomic Structure; Bond Lengths; Coordination Number; High-Level Radioactive Wastes; Iron Compounds; Iron Phosphates; Neutron Diffraction; Neutron-Nucleus Scattering; Phosphate Glass; Phosphate Glasses; Structural Chemical Analysis; Uranium; Voids (Solid); X-Ray Diffraction; X-Ray Scattering
Article - Journal
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