dc.creator | Vernon, Joshua A. | |
dc.date.accessioned | 2009-06-09T19:38:18Z | |
dc.date.available | 2009-06-09T19:38:18Z | |
dc.date.issued | 2009-06-09 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/86502 | |
dc.description.abstract | This project explores the grain growth characteristics and grain morphology of bulk
niobium (Nb) processed by severe plastic deformation (SPD). This report deals with
factors affecting grain growth and recrystallization: purity, temperature, and time.
Several heavily cold worked samples of varying purities (99.9X% and 99.99X%) were
heat treated at varying temperatures and times to reveal grain growth behavior. Results
presented include optical micrographs and grain characterizations in terms of size and
morphology. Preliminary results indicate a significant amount of grain size banding in
the recrystallized microstructures in the RG niobium. However, the RRR did not have
the same banded microstructure. This may be an effect of the processing route or a result
of the grain growth behavior in Nb. | en |
dc.format.medium | electronic | en |
dc.language.iso | en_US | |
dc.subject | severe plastic deformation, grain growth, grain growth kinetics, Niobium | en |
dc.title | Grain Growth in Niobium for Superconducting Radio Frequency Cavities | en |
dc.type | Thesis | en |
dc.type.genre | Thesis | en |
dc.type.material | text | en |
dc.format.digitalOrigin | born digital | en |