Abstract

The annealing process of nuclear graphite accompanying the release of Wigner energy was studied in this research. IG-110U and ETP-10 graphite were irradiated at 200 °C by neutrons with low-dose (1.38 × 1019 n/cm2) and high-dose (1.92 × 1020 n/cm2), respectively. Their Wigner energy release at 100–550 °C was measured based on a high-precision differential scanning calorimeter. Characteristics of Wigner energy release spectrum were investigated. The activation energy of the energy release peak (170–230 °C) for low-dose graphite was 1.48 eV, which was related to the decomposition of interstitial clusters and the behaviour of subsequent interstitial pairs. Furthermore, a comprehensive analysis of Wigner energy release combined with thermal conductivity and multi-scale structural parameters during the neutron irradiation and annealing process is given.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.