caa a22 4500 388022809 CHVBK 20180307124929.0 cr unu---uuuuu 161130e199805 xx s 000 0 eng 10.1557/JMR.1998.0158 doi S0884291400043958 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0158 Structure of Pd-Te precipitates in a simulated high-level nuclear waste glass [Elektronische Daten] Structural and bonding characteristics of simplified (Pd, Te) precipitates have been determined in a simulated nuclear French glass using extended x-ray absorption fine structure (EXAFS) and x-ray diffraction. In this sample, these precipitates have a homogeneous composition, with about 10 wt.% Te. They retain a face-centered cubic structure as in pure Pd with a cell parameter which obeys Vegard's law. Pd K-edge EXAFS shows the presence of Te in the Pd coordination shell, with (Pd-Te) distances of 2.80 Å. These distances, higher by 0.05 Å than the (Pd-Pd) distances, may result in a lower packing efficiency of the CFC lattice. The comparison with the average distances derived from x-ray diffraction shows the nonmetallic character of the Pd-Te bond in these precipitates. These bonding modifications may cause the limited solubility of Te in metallic Pd. Copyright © Materials Research Society 1998 Galoisy L. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France Calas G. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France Morin G. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France Pugnet S. Centre de Recherches Nucléaires de la Vallée du Rhône, CEA DCC/DRDD/SCD BP 171, F 30 205 Bagnols sur Cèze, France Fillet C. Centre de Recherches Nucléaires de la Vallée du Rhône, CEA DCC/DRDD/SCD BP 171, F 30 205 Bagnols sur Cèze, France Journal of Materials Research Cambridge University Press 13/5(1998-05), 1124-1127 0884-2914 13:5<1124 1998 13 JMR https://doi.org/10.1557/JMR.1998.0158 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0158 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Galoisy L. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France NATIONALLICENCE 700 1- Calas G. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France NATIONALLICENCE 700 1- Morin G. Laboratoire de Minéralogie-Cristallographie, URA CNRS 09, Universités de Paris VI et VII et IPGP, 4 place Jussieu 75251 Paris Cedex 05, France NATIONALLICENCE 700 1- Pugnet S. Centre de Recherches Nucléaires de la Vallée du Rhône, CEA DCC/DRDD/SCD BP 171, F 30 205 Bagnols sur Cèze, France NATIONALLICENCE 700 1- Fillet C. Centre de Recherches Nucléaires de la Vallée du Rhône, CEA DCC/DRDD/SCD BP 171, F 30 205 Bagnols sur Cèze, France NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/5(1998-05), 1124-1127 0884-2914 13:5<1124 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge