X-Ray Absorption Studies of Borosilicate Glasses Containing Dissolved Actinides Or Surrogates
Journal Article
·
· Phys.Scripta T115:342,2005
OSTI ID:894122
The solubility of actinides and actinide surrogates in a nuclear borosilicate glass was studied with cerium, hafnium, neodymium, thorium and plutonium. Cerium is a possible surrogate for tetravalent and trivalent actinides such as plutonium, hafnium for tetravalent actinide such as thorium, and neodymium for trivalent actinides such as curium or americium. X-ray absorption spectroscopy was used to obtain data on the local environment of the dissolved elements in the glass network. For glasses melted at 1200 C, the solubility limits of the elements studied were as follows Nd > Ce > Th > Pu > Hf. A correlation has been established between the cation bonding covalence, the oxygen polyhedron and the solubility limit of the elements: the greater the solubility, the larger the oxygen bonds.
- Research Organization:
- Stanford Linear Accelerator Center (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 894122
- Report Number(s):
- SLAC-REPRINT-2005-308
- Journal Information:
- Phys.Scripta T115:342,2005, Journal Name: Phys.Scripta T115:342,2005
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
ABSORPTION
ABSORPTION SPECTROSCOPY
ACTINIDES
AMERICIUM
BONDING
BOROSILICATE GLASS
CATIONS
CERIUM
COVALENCE
CURIUM
FINE STRUCTURE
GLASS
HAFNIUM
NEODYMIUM
OXYGEN
Other
OTHER
PLUTONIUM
RADIOACTIVE WASTE MANAGEMENT
SOLUBILITY
THORIUM
36 MATERIALS SCIENCE
ABSORPTION
ABSORPTION SPECTROSCOPY
ACTINIDES
AMERICIUM
BONDING
BOROSILICATE GLASS
CATIONS
CERIUM
COVALENCE
CURIUM
FINE STRUCTURE
GLASS
HAFNIUM
NEODYMIUM
OXYGEN
Other
OTHER
PLUTONIUM
RADIOACTIVE WASTE MANAGEMENT
SOLUBILITY
THORIUM