Spatial distribution of self-interstitial atoms around depleted zones in tungsten ion-irradiated at 10 K. Report No. 4088
The three-dimensional spatial distribution of self-interstitial atoms (SIAs) around depleted zones (DZs), in ion-irradiated tungsten, was determined by field-ion microscopy (FIM). High-purity, four-pass zone-refined crystals, tungsten FIM specimens were irradiated in situ with 30 keV Cr/sup +/ or 18 keV Au/sup +/ ions along the (741) direction, at 10 K, and examined at this temperature by the pulse field evaporation technique. At 10 K the SIAs, in tungsten, were completely immobile. The distances were measured, along the close-packed crystallographic directions - that is, the (100), (110) and (111)-type direction - between each SIA and the DZs. Distance measurements were also made between each SIA and the irradiated surface of the specimen.
- Research Organization:
- Cornell Univ., Ithaca, NY (USA). Materials Science Center
- DOE Contract Number:
- AS02-76ER03158
- OSTI ID:
- 6971505
- Report Number(s):
- COO-3158-71
- Country of Publication:
- United States
- Language:
- English
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