Self diffusion in thorium
- Atomics International, Canoga Park, CA (United States)
The self-diffusion coefficients and activation energies for thorium have been determined from sintering data for both the face-centered-cubic and body-centered-cubic phases. The activation energies obtained are 3.6 ± 0.3 ev for the fcc phase and 4.3 ± 0.3 ev for the bcc phase. In the temperature range 1100°C to 1550 °C, the diffusion coefficient varies from 2 x 10–10 cm2 /sec to 1 x 10–7 cm2 /sec. An analysis of the data indicates that a vacancy mechanism of volume diffusion is operative in both the fcc and bcc phases.
- Research Organization:
- Atomics International, Canoga Park, CA (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AT(11-1)-GEN-8
- OSTI ID:
- 1962077
- Report Number(s):
- NAA-SR--1714
- Country of Publication:
- United States
- Language:
- English
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