EPR investigations of impurities in the lanthanide orthophosphates
Conference
·
OSTI ID:6802264
Lanthanide orthophosphates formed from elements in the first half of the 4f transition series are analogs of the monoclinic mineral monazite. The known geologic properties of this mineral make the general class of lanthanide orthophosphate compounds attractive substances for long-term containment and disposal of ..cap alpha..-active actinide nuclear wastes. EPR spectroscopy has been used to investigate the structural properties and solid state chemical properties of impurities in these materials and to compare the characteristics of single crystals and polycrystalline bodies.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6802264
- Report Number(s):
- CONF-801124-21(Draft)
- Country of Publication:
- United States
- Language:
- English
Similar Records
EPR spectroscopic characterization of Gd/sup 3 +/ in the monazite-type rare-earth orthophosphates: LaPO/sub 4/, CePO/sub 4/, PrPO/sub 4/, NdPO/sub 4/, SmPO/sub 4/, and EuPO/sub 4/
Valence states of actinides in synthetic monazites. [For possible storage of high-level nuclear wastes]
EPR investigations of Gd/sup 3 +/ in single crystals and powders of the zircon--structure orthophosphates YPO/sub 4/, ScPO/sub 4/, and LuPO/sub 4/
Journal Article
·
Sat Jan 31 23:00:00 EST 1981
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6685912
Valence states of actinides in synthetic monazites. [For possible storage of high-level nuclear wastes]
Conference
·
Wed Oct 01 00:00:00 EDT 1980
·
OSTI ID:6841189
EPR investigations of Gd/sup 3 +/ in single crystals and powders of the zircon--structure orthophosphates YPO/sub 4/, ScPO/sub 4/, and LuPO/sub 4/
Journal Article
·
Fri Aug 01 00:00:00 EDT 1980
· J. Chem. Phys.; (United States)
·
OSTI ID:5201174
Related Subjects
052002 -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
ALPHA-BEARING WASTES
CERIUM COMPOUNDS
CHEMICAL PROPERTIES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRON SPIN RESONANCE
ELEMENTS
ERBIUM
EUROPIUM COMPOUNDS
GADOLINIUM
IMPURITIES
LANTHANUM COMPOUNDS
LEAD
LOW-LEVEL RADIOACTIVE WASTES
LUTETIUM COMPOUNDS
MAGNETIC RESONANCE
MATERIALS
METALS
MINERALS
MONAZITES
MONOCLINIC LATTICES
NEODYMIUM
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PRASEODYMIUM COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RADIOACTIVE WASTES
RARE EARTH COMPOUNDS
RARE EARTHS
RESONANCE
SAMARIUM COMPOUNDS
SCANDIUM COMPOUNDS
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
TETRAGONAL LATTICES
THORIUM COMPOUNDS
THORIUM MINERALS
THORIUM PHOSPHATES
TRANSITION ELEMENT COMPOUNDS
WASTES
YTTRIUM COMPOUNDS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
ALPHA-BEARING WASTES
CERIUM COMPOUNDS
CHEMICAL PROPERTIES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRON SPIN RESONANCE
ELEMENTS
ERBIUM
EUROPIUM COMPOUNDS
GADOLINIUM
IMPURITIES
LANTHANUM COMPOUNDS
LEAD
LOW-LEVEL RADIOACTIVE WASTES
LUTETIUM COMPOUNDS
MAGNETIC RESONANCE
MATERIALS
METALS
MINERALS
MONAZITES
MONOCLINIC LATTICES
NEODYMIUM
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PRASEODYMIUM COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RADIOACTIVE WASTES
RARE EARTH COMPOUNDS
RARE EARTHS
RESONANCE
SAMARIUM COMPOUNDS
SCANDIUM COMPOUNDS
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
TETRAGONAL LATTICES
THORIUM COMPOUNDS
THORIUM MINERALS
THORIUM PHOSPHATES
TRANSITION ELEMENT COMPOUNDS
WASTES
YTTRIUM COMPOUNDS