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Evaluation of tantalum-alloy-clad uranium mononitride fuel specimens from 7500-hour, 1040 c pumped-lithium-loop test
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Watson, G. K. |
| Copyright Year | 1974 |
| Description | Simulated nuclear fuel element specimens, consisting of uranium mononitride (UN) fuel cylinders clad with tungsten-lined T-111, were exposed for up to 7500 hr at 1040 C (1900 F) in a pumped-lithium loop. The lithium flow velocity was 1.5 m/sec (5 ft/sec) in the specimen test section. No evidence of any compatibility problems between the specimens and the flowing lithium was found based on appearance, weight change, chemistry, and metallography. Direct exposure of the UN to the lithium through a simulated cladding crack resulted in some erosion of the UN in the area of the defect. The T-111 cladding was ductile after lithium exposure, but it was sensitive to hydrogen embrittlement during post-test handling. |
| File Size | 4987380 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740013022 |
| Archival Resource Key | ark:/13960/t4sj67z27 |
| Language | English |
| Publisher Date | 1974-04-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic Nitrides Tantalum Alloys Nuclear Fuel Elements Uranium Compounds Lithium Cladding Hydrogen Embrittlement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
