Synthesis of Waste Form in the Gd-Fe-Al-Ni-Mn-Cr-O System
Conference
·
OSTI ID:21208697
- Korea Institute of Geoscience and Mineral Resources 30 Gajeong-dong, Yuseong-gu, Daejeon, 305-350 (Korea, Republic of)
- Chungbuk National University, Department of Earth and Environment Sciences, 12 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763 (Korea, Republic of)
Poly-phase waste form which was the mixture of Gd{sub 3}Fe{sub 2}Al{sub 3}O{sub 12} and (Ni{sub x}Mn{sub 1-x})(Fe{sub y}Cr{sub 1-y}){sub 2}O{sub 4} was synthesized. Also, we are intended to examine phase relation and physicochemical properties of coexisted phases in the compositions and to confirm accommodation relation of elements and phases. Two types of phase series were observed: Garnet-perovskite-spinel and Garnet-spinel. The compositions of garnets and spinels were nonstoichiometric, and especially, this poly-phase ceramics may be in a good waste form. The excessive Gd in garnets indicated the immobilization of higher content of actinides. The nonstoichiometric compositions of garnet and spinel were attributed to the formation of perovskite in that perovskite contained Gd, Fe and Al from garnet and Cr from spinel. (authors)
- Research Organization:
- WM Symposia, Inc., PO Box 13023, Tucson, AZ, 85732-3023 (United States)
- OSTI ID:
- 21208697
- Report Number(s):
- INIS-US--09-WM-06229
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Wed Dec 31 23:00:00 EST 1975
· J. Am. Ceram. Soc.; (United States)
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OSTI ID:7351322