Long-term behavior of the tritides formed by nickel-based intermetallic compounds
Conference
·
· Fusion Technol.; (United States)
OSTI ID:5761174
Some properties of the tritide phases formed by the intermetallic compounds Mg/sub 2/Ni, ZrNi, and LaNi/sub 5/ have been studied. Whereas ZrNiT/sub 3/ will retain its stoichiometry indefinitely when sufficient gaseous tritium is available, the stoichiometries of Mg/sub 2/NiT/sub 4/ and LaNi/sub 5/T /sub 6.9/ decrease with time. Although all three intermetallic tritides can retain large quantities of the helium-3 tritium decay daughter product in the solid phase, irreversible release of helium begins after several hundred days for ZrNiT /sub x/ and Mg/sub 2/NiT /sub x/. However, LaNi/sub 5/T /sub x/ retains all of the helium generated in the solid for at least 2400 days. NMR measurements for ZrNiT /sub x/ and Mg/sub 2/NiT /sub x/ imply that helium is retained in microscopic bubbles as previously observed in several binary metal tritides.
- Research Organization:
- Monsanto Research Corporation, Mound Miamisburg, OH
- OSTI ID:
- 5761174
- Report Number(s):
- CONF-850405-
- Conference Information:
- Journal Name: Fusion Technol.; (United States) Journal Volume: 8:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BUBBLES
CHEMICAL REACTIONS
CHEMISORPTION
DAUGHTER PRODUCTS
DECAY
DESORPTION
EVEN-ODD NUCLEI
HELIUM 3
HELIUM ISOTOPES
INTERMETALLIC COMPOUNDS
ISOTOPES
LABELLED COMPOUNDS
LANTHANUM ALLOYS
LIGHT NUCLEI
MAGNESIUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NUCLEI
RARE EARTH ALLOYS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
STABLE ISOTOPES
STOICHIOMETRY
SURFACE PROPERTIES
TRITIUM COMPOUNDS
ZIRCONIUM ALLOYS
360104 -- Metals & Alloys-- Physical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BUBBLES
CHEMICAL REACTIONS
CHEMISORPTION
DAUGHTER PRODUCTS
DECAY
DESORPTION
EVEN-ODD NUCLEI
HELIUM 3
HELIUM ISOTOPES
INTERMETALLIC COMPOUNDS
ISOTOPES
LABELLED COMPOUNDS
LANTHANUM ALLOYS
LIGHT NUCLEI
MAGNESIUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NUCLEI
RARE EARTH ALLOYS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
STABLE ISOTOPES
STOICHIOMETRY
SURFACE PROPERTIES
TRITIUM COMPOUNDS
ZIRCONIUM ALLOYS