OBSERVATIONS OF DISLOCATION NETWORK IN NEUTRON-IRRADIATED LiF CRYSTAL
Phase-contrast microscopy observations are described for a LiF crystal irradiated to 2 x 10/sup 17/ not and annealed at 400 to 800 deg C. Previous reports that square cavities with faces parallel to (100) and colored by the interference of light were found densely near cracks and subboundaries while sparsely in subgrnins are confirmed. Other observations are reported. Closely formed cavities decorate subboundaries but few are observed within 30 mu of outer surfaces of subboundaries. There are isolated dislocation lines as well as isolated cavities in subgrains, visually observable by having light scatterers. A dislocation network exists near the spot with dense concentration of cavities. Dense arrangements of dislocation lines become observable on subboundaries and near cracks when the crystal is annealed at about 700 deg C for a short time. (T.R.H)
- Research Organization:
- Japan Atomic Energy Research Inst., Tokyo
- NSA Number:
- NSA-15-011738
- OSTI ID:
- 4083913
- Journal Information:
- J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 16
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
RADIATION EFFECTS IN LiF CRYSTAL. Report 14
Nanosized precipitates and dislocation networks reinforced C-containing CoCrFeNi high-entropy alloy fabricated by selective laser melting