Void formation in ion bombarded niobium
Journal Article
·
· Radiat. Eff., v. 20, no. 1-2, pp. 25-31
Transmission electron microscopy was used to study void formation in high-purity niobium bombarded with 7.5-MeV Ta/sup 3+/ ions at elevated temperatures. The swelling due to voids increases with ion dose in the range 1 to 100 dpa at both 800 and 900 deg C. Above 100 dpa, the swelling begins to saturate and approaches a value of 4.5% at 800 deg C and between 7 to 10% at 900 deg C for a maximum dose of 300 dpa. The saturation is coincident with the formation of a bcc void lattice. The void lattice is somewhat temperature- dependent, being much better deftned at 800 deg C than at 900 deg C. (auth)
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, WA
- NSA Number:
- NSA-29-024822
- OSTI ID:
- 4305618
- Journal Information:
- Radiat. Eff., v. 20, no. 1-2, pp. 25-31, Journal Name: Radiat. Eff., v. 20, no. 1-2, pp. 25-31; ISSN RAEFB
- Country of Publication:
- United Kingdom
- Language:
- English
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