Premium
Immobilization of simulated waste into pure Gd 2 Zr 2 O 7 pyrochlore without space occupancy design
Author(s) -
Wu Jianjun,
Luo Fen,
Shu Xiaoyan,
Chen Shunzhang,
Wei Guilin,
Li Bingsheng,
Xie Yi,
Yuan Wenqing,
Yi Facheng,
Lu Xirui
Publication year - 2020
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/jace.17138
Subject(s) - solubility , sintering , materials science , crystallization , solid solution , pyrochlore , molar ratio , analytical chemistry (journal) , nuclear chemistry , diffraction , molar volume , chemical engineering , chemistry , phase (matter) , metallurgy , thermodynamics , chromatography , biochemistry , physics , organic chemistry , engineering , catalysis , optics
In this study, different molar ratios of Nd:Ce were directly mixed with prepared pure Gd 2 Zr 2 O 7 powders without space occupancy design. Samples were obtained by performing sparking plasma sintering (SPS) at 1750°C for 5 minutes. X‐ray diffraction (XRD) results show that maximum solid solubility of simulated radionuclides can reach 50 mol%. In addition, all samples with the maximum solid solubility have high compactness, and all elements are evenly distributed on the surface of the samples. The samples show a better crystallization effect as the molar ratio of Nd:Ce increases. The maximum solid solubility increases from 42 mol% to 50 mol% when the amount of Nd 2 O 3 reaches 66 mol%.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom