Effect of initial oxygen content on the void swelling behavior of fast neutron irradiated copper
Density measurements were performed on high purity copper specimens containing <10 wt.ppm and {approx}90 wt.ppm oxygen following irradiation in FFTF MOTA 2B. Significant amounts of swelling were observed in both the low-oxygen and oxygen-doped specimens following irradiation to {approx}17 dpa at 375 C and {approx}47 dpa at 430 C. Oxygen doping up to 360 appm (or {approx}90 wt.ppm) did not significantly affect the void swelling of copper for these irradiation conditions. This implies that surface energy reduction associated with oxygen segregation and chemisorption on void surfaces is not a significant factor controlling the void swelling behavior in copper irradiated with neutrons to high doses at {approx}400 C.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 860028
- Report Number(s):
- PNNL-SA-40778; AT6020100
- Journal Information:
- Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Journal Issue: Pt. B Vol. 329-333; ISSN 0022-3115; ISSN JNUMAM
- Country of Publication:
- United States
- Language:
- English
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