Isotope effect between hydrogen and deuterium ion irradiation on titanium carbide (TiC) at low temperature
Abstract
Damage evolution and amorphization in TiC due to He +, H 2+ and D 2+ ion irradiation at low temperature were examined by in-situ electron microscopy and EELS observation. He + ion irradiation at 20 K results in the production of a number of dislocation loops and bubbles but no amorphization. 10 keV H 2+ ion irradiation at 20 K causes amorphization at a fluence of about 4.5 × 10 17 (H +)/cm 2, while 10 keV D 2+ ion irradiation at the same temperature produces amorphization at a fluence of about 9 × 10 17 (D +)/cm 2. The difference in the fluences necessary for causing amorphization between H 2+ and D 2+ irradiation shows the isotope effect between H and D. H is more favorable for amorphization.
- Publication:
-
Nuclear Instruments and Methods in Physics Research B
- Pub Date:
- May 1997
- DOI:
- 10.1016/S0168-583X(96)00886-5
- Bibcode:
- 1997NIMPB.127..203H